Protected contact ansys For additional information, see the Determining Contact Stiffness and Allowable Penetration, specifically Using FKT and SLTO, section of the Mechanical APDL Contact Technology Guide (Surface-to-Surface Contact). You should first try running your contact analysis using the default settings, then change settings only if you encounter difficulties or have special situations in your analysis. All rights reserved. « 11. As the gap approaches 0, penetration will begin . The scoped objects will not receive additional protection by the mesher if the Named Selection is not used for one of these controls. During contact detection, the contact and target surface are assumed to be the surface of a cylinder. In the case of pair-based contact, the target surface is defined by the 3D target element type Pure Penalty and Augmented Lagrange Contact Formulation For nonlinear solid body contact of faces, Pure Penalty or Augmented Lagrange formulations can be used. It can be specified either through the coefficient of friction (MU) for isotropic or orthotropic friction models or as user defined friction properties. Node-to-Node Contact 10. Modeling "large sliding" contact. 3) operations and subsequent preprocessing, where the additional preprocessing may include scoping of objects (such as loads, boundary conditions, Named Selections, and so on) to geometry (bodies, faces, edges, and vertices CONTA174 Element Description CONTA174 is used to represent contact and sliding between 3D target surfaces and a deformable surface defined by this element. SetupData. Mechanical. Geometry tolerances are typically tighter than the tolerances used by contact matches, which can lead to problems in obtaining conformal mesh. In this regard, Dec 10, 2019 · Hello everyone, I'm wondering if Ansys chooses the contact and target surfaces automatically only if I use symmetric behavior. Learn the best approaches to avoid excessive contact penetration between the structures in Ansys Mechanical by exploring this knowledge material. They are suitable for solving either small-sliding or large-sliding contact applications. You are prohibited from providing (i) information that is confidential to You, your employer, or any third party, (ii) Personal Data or individually identifiable health information, (iii) any information that is U. Contact Friction Contact friction (TB,FRIC) is a material property used with current-technology contact elements. General Contact 9. The contour plot might make this a bit more clear. Mar 17, 2023 · Contact between beam elements can be modeled through CONTACT_AUTOMATIC_GENERAL. Ansys has a global presence. The special protection ensures the outer boundary is captured accurately, however, it could have a negative impact on meshing since the mesher is forced to capture the sliver surface. Data. Given properly defined contact conditions, contact results converge more efficiently and results tend to A contact problem occurs at points (in 2D) or lines (in 3D) where the velocity is fixed and the position of the free surface or moving interface is not prescribed. I need to specify a specific thermal contact conductance which is the same for all 4 contacts. Nov 12, 2019 · Hi, I have some small gaps and modeled as frictional contact with putting pinball radius to cover the gap but I still see it is near open. Have a question about our software? Contact us - we're here to help! Mar 31, 2025 · 5 (4) Introduction to Contacts in Ansys In Ansys, a contact is defined by a pair of surfaces referred to as contact and target (selecting contact and target in Ansys). They are an alternate option to imprinting faces (for example, by using the DesignModeler application). See Stiffness Coefficient and Exponent of Penetration in the Motion Preprocessor User Guide for more information. Each of these connections can be created manually in the application. DataModel. Sending Named Selections to the Solver Beam-to-Beam (Edge-Edge) contact is supported by structural analyses only (static, transient, modal, harmonic, etc. This accounts for the contact thickness (offset) due to the cross section of the beam elements. Instead, if I use asymmetric, I have to choose the contact and target surfaces manually (I can do it also in the symmetric case, but it is not mandatory). This may be due to mesh based defeaturing of the geometry. I was told two ways I could fix this would be to set Automatic Mesh defeaturing to no and to set the variable contactallowempty = 1. So this way the actuel beam geometry In this quick tips and tricks video, learn how to improve contact accuracy in Ansys Mechanical using the Contact Match Mesh Control. The flow enters at a constant speed at the top of the domain (BS4) and falls onto Sep 15, 2017 · Best Practices for Contact Modeling This presentation contains ANSYS, Inc. @ Peteroznewman Subscriber :could you help me to fix it? Thanks very much. Sep 27, 2022 · ANSYS Mechanical comes with an extensive set of options for contact definitions between components. Feb 17, 2022 · The topic ‘Contact region problem’ is closed to new replies. If I model this setup without an offset, the contact between beam and solid seems to be between the beam midline and the nodes on the suface of the solid body. It involves defining how surfaces come into contact, whether they touch, slide, or separate. See the Reviewing the Results section of the Contact Technology Guide for additional information. Insert a Contact Tool into the Solution branch then Insert a Penetration plot into the Contact Tool folder to evaluate the magnitude of the Jun 13, 2025 · 0 (0) Contact interactions play a pivotal role in ensuring realistic results in structural simulations involving assemblies. Regardless of the method you choose, you need to select geometry entities of the model and scope those entities with a boundary condition. Introduction ANSYS, Inc. Contact Surface Wear A. Basics of Contact Region object Jan 10, 2022 · Hi There is a section about this (protected geometry) that we hope will help in the theory manual: Protecting Topology Defined Prior to Meshing (ansys. You may select the offending object via RMB on this warning in the Messages window. Please let us know your 5. For a given contact region, if contact is occurring on the same face (Top or Bottom) as the offset, no special settings are required. I was working in Ansys Mechanical using Workbench 2022 and came across the aforementioned issue. Mar 24, 2020 · At least one contact pair has no elements in it. There are many factors influencing thermal contact conductance: contact pressure, surface roughness, the interface fluid and the interface temperature. Not sure off of the top of my head what the settings are in Ansys, but you will need to set up contact elements on the adjacent surfaces. ANSYS, Inc. Particularly, a number of new Ansys users are very confused about the differences among the contact types; such as Frictionless, Rough, Frictional, No separation. Default Formulation is Augmented Lagrange for all flexible body contact behaviors Default Detection Method is: -At Gauss Points for surface contact −At Node Points Normal to Target for edge The special protection ensures the outer boundary is captured accurately, however, it could have a negative impact on meshing since the mesher is forced to capture the sliver surface. Sep 5, 2018 · Eng-Tips is the largest forum for Engineering Professionals on the Internet. The element is capable of supporting only compression in the direction normal to the surfaces and shear (Coulomb friction) in the tangential direction. When a model is imported into Workbench Mechanical, the default setting of the application is to automatically detect instances where two bodies are in contact and to generate the corresponding Contact Region objects. However, regardless of the actual shape of the cross section, the contact algorithm assumes that the beams have a cylindrical shape. It also enables you to specify the Normal Stiffness for a specific load step. The interaction between the bodies is governed by their ability to separateRead More “Ansys Contact Types Explained : Which one to choose For further clarification of errors listed below, contact Ansys Technical Support. Jun 28, 2019 · In future posts, please use the Insert Image button to put your image in the post because ANSYS employees are not permitted to open attachments. 10. Whether it’s load transfer across bolted joints, pressure in gasket interfaces, or friction between sliding parts, properly defined contact behavior is essential. Is it correct? Thank you in advance. Ansys Mechanical (Workbench) makes it relatively easy to set up contact pairs. nGap is geometric gap. see the affected edges. More information about Ansys Technical Support and Technology Enhancements and Customer Support (TECS) is available via the Ansys customer site. The application scopes the new Mesh Connection or Contact Match objects to the geometries of the Contact Region (s) and sets the tolerance to be equal to the trim tolerance of the contact region. Multipoint Constraints and Assemblies 11. This helps with scoping boundary conditions and material properties. Pure Penalty and Augmented Lagrange Contact Formulation For nonlinear solid body contact of faces, Pure Penalty or Augmented Lagrange formulations can be used. ComponentProtectedType (*args, **kwds) Bases: enum. Contact regions created through auto-detection assume "assembly contact," placing contact faces very near to one another. Body Views A helpful way to spatially identify a contact, especially when the contact occurs on the interior of your model, is to use the Body Views feature on the Connections Context Tab to display parts in separate auxiliary windows. The application uses contact element CONTA177. Jun 25, 2025 · Learn how to define, troubleshoot, and optimize contact in Ansys Workbench with this complete guide — from contact types to load extraction and solver tips. This instructs the mesher to give higher priority to those geometry features. Members share and learn making Eng-Tips Forums the best source of engineering information on the Internet! May 2, 2019 · Introduction to Contact When two bodies come in physical contact, they exert forces on each other. Mar 2, 2022 · This video demonstrates how to apply geometrical contacts in ANSYS Workbench Mechanical. 7. For Sep 13, 2023 · Contact Formulations available in ANSYS Mechanical were presented in detail in ANSYS Mechanical Basic Structural Nonlinearities and are summarized here. How do I set this variable to 1 in Workbench 2022? Apr 23, 2023 · Hello, I have had a problem to show " At least one contact pair or remote load has no elements in it. UpdateSetupInfo (Dictionary`2 info) at Ansys. Automatic Property Specification Note the Dragging and dropping the Contacts folder onto the Mesh object to create a Contact Sizing control for each contact region in the folder. The application automatically calculates the equivalent circular radius based on the associated geometry of the underlying Designers usually struggle while defining correct contact between parts and faces. Contact problems fall into two general classes: rigid-to-flexible and flexible-to-flexible. All Categories Structures - Structural & Thermal What is the purpose of the option “Protected†under the Contact region? Protected Depth Tool Guides The following tool guides are available for protected depth: Origin of Friction (cont. Ansys Workbench offers a powerful utility—the Contact Tool—for both diagnosing contact setup and Feb 7, 2023 · What is a contact in ANSYS? A contact is a means to define how multiple bodies will interact in ANSYS. Jun 26, 2006 · Hello everyone, Does anyone have experience with calculating thermal contact conductance(TCC) while using conta174. It may not hit exactly 0. Thanks, Vinay AnsysGPT is a conversational, AI powered virtual support engineer based on Ansys knowledge. Line-to-Surface Contact (Pair-Based) 7. The higher the contact stiffness, the lower the penetration, x p, as For example, if you apply a force of 1000N in the X-direction to a vertex, the load is "scoped" to that vertex. 19. Does the contact still work if it is near open? I expect to model the part will move along the gap and stop by the counter part. The order of these selections can vary Feb 9, 2024 · Ansys Mesh Settings If you click on Mesh in the Project tree within Ansys Mechanical, you will see a number of settings under “Details of Mesh”. Contact matches enable you to match mesh nodes between topologically disconnected solids within a specified tolerance. I gave information about which contact type allows seperation or which c Jul 5, 2023 · Hello,I am trying to model 4 circular beams which are pushed against a solid. The Contact Tool enables you to examine contact conditions on an assembly both before loading, and as part of the final solution to verify the transfer of loads (forces and moments) across the various contact regions. The value approaches 0 as the bodies become closer. The location of the nodes and elements of the surface body represent the actual position of that face. The contact is frictional. For Protected depth in the Protected depth HUD, enter the distance surrounding applied conditions to be protected during optimization. It is important that you understand the physics of the problem and take the time to set up your model to run as efficiently as possible. To activate the thermal DOF only, set KEYOPT (1) = 2. Multiphysics Contact 8. For example, if you apply a force of 1000N in the X-direction to a vertex, the load is "scoped" to that vertex. In rigid-to-flexible contact problems, one or more of the contacting Jun 8, 2020 · Ansys Meshing as an option to defeature sizes lower than a threshold you are specifying. SendMessage (String msg, String msgKey, String errorMessage, Boolean waitForReply) at Ansys. CONTAC12 represents two surfaces which may maintain or break physical contact and may slide relative to each other. Imperfection in thermal contact behavior can be inspected in plots of thermal flux in directions perpendicular to the contact 4. The diameter assumed depends on the beam formulation. Auto-detection creates more contact pairs than are necessary. Jun 3, 2020 · Hi everyone, While there are a lot of researches on dynamics of wetting and dynamics contact angle, it seems, Ansys fluent update contact angle during simulation. The goal of nonlinear contact (not bonded) is that the parts should not penetrate by an excessive amount. It is typically defined between two surfaces. You can refer to the contact theory section of this site for more information on contacts. We'll walk through a tes Mar 22, 2021 · Is it mandatory? I tried defining that and due to the contact set requirements (frictional for contact regions of bolt heads etc) the solver is taking too long to run and the solution doesn't seem to converge. The workbench equivalent is 'use frictionless (or rough) contact, with pure penalty formulation'. A named You can use surface-to-surface contact elements and the node-to-surface contact element, in combination with thermal-structural coupled field solid elements or thermal elements, to model heat transfer that occurs in the contact surface. Manual contact encompasses the entire scope so sliding is better captured. Defining a contact ensures that two bodies do not interpenetrate at these surfaces. The higher the contact stiffness, the lower the penetration, x p, as Oct 9, 2016 · Ansys | Static Structural | How To Create Simple Contact Analysis Tech. These types of contact problems usually involve small relative sliding between contacting We would like to show you a description here but the site won’t allow us. Fluent. In this article we will take a look at each one of the contact settings and explain what it does, and how best to utilize some of them. The element has two degrees of freedom at each node: translations in the nodal x and y directions. If you want to test this, please reduce the defeature size to a number smaller than your smallest edge in the domain and remesh. ). Selecting the Contacts folder or an individual Contact Region in the Tree and using the RMB option Create > Contact Sizing to create Contact Sizing controls for the selected contact regions. To activate both the structural and thermal DOFs, set KEYOPT (1) = 1. The order of these selections can vary Supported connection features consist of Contact, Joint, Spring, Beam Connection, End Release, Spot Weld and Body Interaction (Explicit Dynamics only). All Categories Structures - Structural & Thermal What is the purpose of the option “Protected†under the Contact region? Origin of Friction (cont. Nov 29, 2021 · Hello together, i have 4 tangential contact regions between a rounding and a case. g. In this case, you have a moving contact point (or line). The content that follows has been derived from Ansys help documentation. Fluid trapped in between Contact pressure and surface roughness influence the amount of fluid (air or liquid) trapped in the interface, and directly influences the thermal contact conductance. On the details of the contact (see picture) you could choose between Program Controlled, Pure Penalty, Augmented Lagrange, Normal Lagrange etc. The element is applicable to 3D structural and coupled-field contact analyses. For further clarification of errors listed below, contact Ansys Technical Support. 12: Example of a Contact Point. 2, static structural, to obtain the v-m stresses and the total deformation of an index finger that belong to a hand orthosis model. This document considers some effects of contact pair settings on thermal results. FluentCommunicator. Create a named selection for the failed contact matches that should have the same mesh size: Select all of the failed contact matches, right-click, and select Create Named Selection. In this case, the new object is added to the list of protected topologies, but you may or may not want to re-mesh because the associations may be fine. I want to parameterize this one value so i can vary it in the workbench use ANSYS, ANSYS Workbench, Ansoft, AUTODYN, EKM, Engineering Knowledge Manager, CFX, FLUENT, HFSS and any and all ANSYS, Inc. Sep 5, 2024 · Contacts Overview Contact modeling in Ansys Mechanical is a critical aspect of simulating how different parts of a structure interact under various conditions. There are various options available and which suits the best depicting the actual physical setup is tough to It is used to model reinforced structures like steel reinforced concrete columns, for example. Jul 10, 2025 · The Ansys Learning Forum is a public forum. Based on the input, Meshing will attempt to remove some of these edges and by doing this, it will not have to worry about these meshing them anymore. We would like to show you a description here but the site won’t allow us. and its subsidiaries and affiliates take seriously the protection of your Personal Data (generally meaning information and data that can identify you as a person, and as defined and explained further in Section III below). This can be exacerbated by poorly defined contact conditions, which may also create further instability and cause convergence issues and require additional processing time. for bonded surfaces)?’ is closed to new replies. Dynamic Contact and Impact Modeling 12. 1) I Learn how to use named selections to get the most out of Ansys Mechanical. Hard protected topology can be defined by scoping Named Selections and/or Contact region objects to geometry (bodies, faces, edges, and vertices) and setting the Protected option to Yes. 19. 構造＆伝熱 ホーム フォーラム フィード 学ぶ ナレッジ イベント サポート マイチャンネル AIS Japan - 構造＆伝熱 接触（Contact）領域の [Protected]オプションの目的は何ですか。 接触（Contact）領域の [Protected]オプションの目的は何ですか。 Dec 6, 2018 · Hello to everyone, I'm using workbench 18. Example 2D Contact Analysis with Fluid Pressure-Penetration May 28, 2020 · This video demonstrates how to apply geometrical contacts in ANSYS Workbench Mechanical. AnsysGPT leverages industry leading generative AI technology to answer questions about Ansys products, relevant physics, and engineering topics, in a simple, easy to use tool. Negative value is a wide gap. Rather than ignoring the gap by offsetting the contact elements, damping is applied and makes the approach of the bodies towards each other less difficult for the solver to handle, leading eventually to closed contact. The Contact Tool is an object you can insert under a Connections object for examining initial contact conditions, or under a Solution or Solution Combination branch object for If there is a tolerance error, verify that the Tolerance Value is correct. The Contact Tool is an object you can insert under a Connections object for examining initial contact conditions, or under a Solution or Solution Combination branch object for Hard protected topology can be defined by scoping Named Selections and/or Contact region objects to geometry (bodies, faces, edges, and vertices) and setting the Protected option to Yes. In this case, you may need to add additional contact faces. Please modify defeaturing settings which are accessible on the Mesh object. I'm then Jun 11, 2020 · at Ansys. I am facing several problems. Can I run the simulation without defining the bolt pre-tensions? nI tried with all contacts bonded and the solver gives me results. nPenetration:The default Program Controlled contact type is Augmented Lagrange. We will discuss each of these settings individually. In order to achieve an accurate solution, K and n values for the contact must also be determined depending on the geometry shape and material. The node-to-node contact elements are often used in situations where the location of contact is known beforehand. The joint consists of a wire passing through a hole in a block, then it is bent around to stop it coming back through (please see attached image). Contact Properties: Basic The Basic tab contains general properties related to contact behavior and convergence. Spot Welds 13. Contact conditions are created when an assembly is imported into the application and it detects that two separate bodies (solid, surface, and line bodies) touch one another (they are mutually tangent). G 872 subscribers Subscribed Last updated August 2025 I. The element may be initially Object Properties The Details Pane properties for this object include the following. In this case, you can delete the We would like to show you a description here but the site won’t allow us. Apr 5, 2024 · Hello, You could use a different Formulation in your bonded contact. 11: Body Interactions Object under Connections From the ribbon, select Topology Optimization > Protected Depth, or double-click Protected depth under Optimization in the physics tree. Enum This Enum specifies if the corresponding contact entities (faces, edges, or vertices) are protected while meshing. So, the normal force Fn tries to prevent penetration of bodies into each other and Ft tries to prevent the sliding of bodies over each other. " the problem is still existing when i set the "mesh defeaturing" to "No". Please let me know. Nov 2, 2020 · Hi DianenLook up Contact Formulation Theory in the Ansys Mechanical Applications Help. ReadCaseModelInfo (IFullContext context) I didn't know what is the root problem because fluent cannot generate my project. is a United States corporation, incorporated in the state of Delaware, United States of America, located at Object Properties The Details Pane properties for this object include the following. Have a question about our software? Contact us - we're here to help! A helpful way to spatially identify a contact, especially when the contact occurs on the interior of your model, is to use the Body Views feature on the Connections Context Tab to display parts in separate auxiliary windows. brand, product, service and feature names, logos and slogans are For further clarification of errors listed below, contact Ansys Technical Support. com) See how to access help : All the best Erik Jun 27, 2004 · Ansys is fine, just need to work out the contact options. Jul 30, 2019 · I think that I somehow don't understand how automatic contact region generation works and how it should be used. Cortex. Scoping Method Techniques The application provides several common methods for scoping boundary conditions. 5. Object Properties The Details Pane properties for this object include the following. Enums. Terms and Conditions Legal Notices Privacy Policy Send Feedback Aug 30, 2018 · I have the same problem, how I can Set the variable "contactAllowEmpty" to 1 in order to allow the solution to proceed with an ANSYS warning which can be used to identify the offending contact pair (s) by reading the Solution Output? Could you direct step by step to be able to find it? May 19, 2015 · The Contact Tool enables you to examine contact conditions on an assembly both before loading, and as part of the final solution to verify the transfer of loads (forces and moments) across the various contact regions. Damping Coefficient and Boundary Penetration Damping Coefficient is a part of the damping force which represents a Coulomb damping applied Mar 31, 2025 · 5 (4) Introduction to Contacts in Ansys In Ansys, a contact is defined by a pair of surfaces referred to as contact and target (selecting contact and target in Ansys). Figure 8. For LS-DYNA, the Manual Contact Region can be applied to Particle bodies if the contact bodies are scoped such that the Particle body is the Target body. CortexCommunicator. Ansys Mechanical offers a wide range of contact options to accurately model these interactions, including bonded, frictional, and no-separation 2025 - ANSYS, Inc. Debonding 14. As the gap approaches 0, penetration will begin Jun 12, 2020 · Ansys Learning Forum › Forums › Discuss Simulation › Preprocessing › Some boundaries of protected topologies have been defeatured. These types of contact problems usually involve small relative sliding between contacting Topology Checking - ANSYS Meshing Users GuideThe Topology Checking control determines whether the mesher performs topology checks during patch independent meshing (p. There are several contact-related parameters in LS-DYNA that can be used to modify or, in many cases, improve contact behavior. Jan 10, 2022 · The topic ‘What is the meaning of ‘Protected’ when defining contact regions (e. Jun 13, 2025 · Contact interactions play a pivotal role in ensuring realistic results in structural simulations involving assemblies. Both of these are penalty-based contact formulations: FNormal = kNormalxPenetration The finite contact Force, F n, is a concept of contact stiffness, k Normal. Mar 7, 2021 · Choosing the appropriate contact type depending on the type of problem you are trying to solve is often tricky. Manual tweaking of contact pair details can improve contact element performance, and the accuracy of results. Jun 4, 2020 · In this posting, we’ll cover a contact convergence problem in Ansys Mechanical, including steps to identify this problem and solve it. So this way the actuel beam geometry Mar 22, 2021 · Is it mandatory? I tried defining that and due to the contact set requirements (frictional for contact regions of bolt heads etc) the solver is taking too long to run and the solution doesn't seem to converge. Jun 1, 2020 · Hello, could you tell me what is the cause of the abrupt change in contact status, and how to fix this problem? Contact element 210339 (real ID 26) status changes abruptly from contact (with target element 212245) -> no-contact. Jun 11, 2020 · Ansys Learning Forum › Forums › Discuss Simulation › Preprocessing › Some boundaries of protected topologies have been defeatured. The interaction between the bodies is governed by their ability to separateRead More “Ansys Contact Types Explained : Which one to choose The pair-based contact definition and general contact definition both use surfaces to define contact. Note: Frictional and Frictionless Manual Contact Regions cannot be scoped to Particle bodies in Explicit Dynamics analyses. This is the default display option when you select a Contact object, and as illustrated below, the different contact bodies (Contact and Target) have colors Object Properties The Details Pane properties for this object include the following. Contact Results If your model contains Contact Regions, you can define the contact results listed below under the Solution object by inserting a Contact Tool . If the distance between the "Primary" and "Secondary" bodies is greater than the Tolerance Value, then increase the tolerance. S. Government Classified, Controlled Unclassified Information, International Traffic in Arms Regulators (ITAR) or Export Administration There are several contact-related parameters in LS-DYNA that can be used to modify or, in many cases, improve contact behavior. You can also enter this value directly in the physics tree. One of them is showed in the picture. Please let us know your Contact problems are highly nonlinear and require significant computer resources to solve. This may be due to mesh defeaturing. The following thermal contact Creates Mesh Connection and Contact Match objects from Contact Regions. It is the only way for ANSYS to know that you are working with an assembly. As boundary conditions, there is gravity, a force (22N) that represent the flexor tendon (nylon line) and a fixed support located in the pin that joins the finger with the rest After meshing, if a new object is scoped to the geometry, the associations to the mesh may not match (see Figure 68: Protecting Topology). The default trajectory contact settings allow you to understand where the contact points are in the simulation after an initial coarse mesh run and then refine the contact options and scoping. Use the questions below to assist you in determining if you need to change any of the default settings Ansys has a global presence. In these scenarios, contact For typical structural problems, the presence of nonlinear contact is often the reason for increased solution times. Alternatively, set the variable "contactAllowEmpty" to 1 in order to allow the solution to proceed with a warning which can be used to identify the offending pair(s). The pair-based contact definition and general contact definition both use surfaces to define contact. What happens when a contact is not defined or is not working properly? If a Jun 8, 2020 · Ansys Meshing as an option to defeature sizes lower than a threshold you are specifying. For Example, Normal Lagrange uses an extra degree of freedom (pressure) to prevent any penetration through the target surface. For example if you set static contact angle for a liquid slug in a capillary tube, and then force the slug to move, the contact angle changes. Hello there, in this video I tried to explain you contact types in ANSYS Structural. ) In terms of contact forces, the force component Ft in the tangential direction is nothing but the frictional force. It can be used for both pair-based contact and general contact. Feb 10, 2016 · Hi, I'm a 3rd Year Student and I'm trying to model a prototype joint in ANSYS, however I am having lots of problems getting it to solve. 3D Beam-to-Beam Contact (Pair-Based) 6. . For example, if you scope a control to one of the side faces of the box, the associated mesh will be fine The Contact Step Control condition enables you to activate or deactivate specific contact regions on a load-step basis during your analysis. class Ansys. Consider, for example, the curtain coater shown in Figure 15. proprietary information. This condition is similar to the Element Birth and Death condition that activates/deactivates element status for a specific load step.