Multi-Body Contact Archives - ESRD https://www.esrd.com/support/software-faqs/category/stresscheck-applications-advanced-features/multi-body-contact/ Engineering Software Research and Development, Inc. Sun, 15 Jan 2023 20:04:12 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://www.esrd.com/wp-content/uploads/cropped-SC_mark_LG72ppi-32x32.jpg Multi-Body Contact Archives - ESRD https://www.esrd.com/support/software-faqs/category/stresscheck-applications-advanced-features/multi-body-contact/ 32 32 Can I Solve Models with Mixed Element Mapping? https://www.esrd.com/support/software-faqs/mixed-element-mapping/ Thu, 21 May 2020 17:42:59 +0000 https://esrd.com/?post_type=faq&p=14492 In StressCheck, mixed mapping refers to the situation where isoparametric/quadratic and geometric (high order blended function) element mappings coexist within the same mesh.]]>
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]]> How Much Difference in Mesh Density Across a Contact Region is Acceptable? https://www.esrd.com/support/software-faqs/mesh-density-difference-across-contact-regions/ Tue, 24 Jul 2018 20:26:45 +0000 https://esrd.com/?post_type=faq&p=7508 StressCheck's multi-body contact algorithm does not require mesh conformity or a 1:1 ratio between contacting element faces. In fact, the element face distribution across assigned contact zones can be quite dissimilar in most practical applications.]]>
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]]> How Can I Improve Multi-Body Contact Efficiency? https://www.esrd.com/support/software-faqs/improve-multi-body-contact-efficiency/ Fri, 01 Jun 2018 01:37:01 +0000 https://esrd.com/?post_type=faq&p=7034 When compared to a single-part analysis, a multi-body contact analysis of the same degrees of freedom (DOF) is more computationally demanding.  This increase in computational time is due to the nonlinear iterations required to accurately depict high-gradient pressure distributions between complex parts, especially if the part count (and by extension the number of contact pairs) is high.]]>
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]]> Do I Need the Nonlinear Solver for Multi-Body Contact? https://www.esrd.com/support/software-faqs/when-nonlinear-solver-needed-multi-body-contact/ Wed, 14 Feb 2018 21:50:56 +0000 https://esrd.com/?post_type=faq&p=6079 When elastic-plastic effects do not need to be considered in a multi-body contact analysis (i.e. the converged maximum von Mises stress in the parts is below the yield stress of the materials), only the Linear Elasticity solver is required.]]>
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]]> What Are Some Common Multi-Body Contact Issues? https://www.esrd.com/support/software-faqs/multi-body-contact-common-issues/ Wed, 20 Dec 2017 04:41:47 +0000 https://esrd.com/?post_type=faq&p=5437 When performing a multi-body contact analysis, unexpected part deformations, contact stress distributions and/or contact pair load transfer checks may be caused by one or more of the following common issues:]]>
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]]> Can the Modal/Buckling Solver Be Combined with Multi-Body Contact? https://www.esrd.com/support/software-faqs/modal-buckling-multi-body-contact/ Wed, 22 Nov 2017 21:12:50 +0000 https://esrd.com/?post_type=faq&p=5022 No, the Modal/Buckling solver cannot currently be combined with multi-body contact analysis. The Modal/Buckling solver is for eigenvalue/eigenmode analysis for single parts.]]>
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]]> What are the Nonlinear Solver Limitations with Multi-Body Contact? https://www.esrd.com/support/software-faqs/nonlinear-solver-multi-body-contact/ Wed, 22 Nov 2017 21:06:38 +0000 https://esrd.com/?post_type=faq&p=5020 Currently, there is not a capability to combine incremental plasticity (Type: Material (NL Mat) with Technique: Incremental) or general/geometric nonlinear (Type: General (NL Gen)) solutions with multi-body contact.]]>
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]]> How Do I Select the Contact Constant For Multi-Body Contact? https://www.esrd.com/support/software-faqs/select-contact-constant-multi-body-contact/ Wed, 15 Mar 2017 00:34:09 +0000 http://esrd.com/?post_type=faq&p=2445 StressCheck's implementation of multi-body contact requires the assignment of a contact constant (Kc) to pair two neighboring contact zones. The units for the contact constant are [F/L/L^2], the same as spring coefficient constraints.]]>
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]]> How Can I Check Load Transfer, Equilibrium and Nodal Reactions In Results? https://www.esrd.com/support/software-faqs/check-load-transfer-equilibrium-nodal-reactions-results/ Wed, 15 Mar 2017 00:31:07 +0000 http://esrd.com/?post_type=faq&p=2444 The StressCheck Resultant tab allows the user to integrate the tractions over the edges (2D) or faces (3D) of the elements to calculate the resultant forces Fx, Fy, Fz and moments Mx, My, Mz.  This can be done over selected edges/faces, or over entire element boundaries.]]>
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