What Ansys Element Models Tension-Only Cables with Hyperelastic Materials?

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SUMMARY

To model tension-only cables with hyperelastic materials in Ansys, the LINK10 element is recommended. LINK180 is unsuitable as it does not support hyperelastic material models. LINK10 is a three-dimensional spar element that features a bilinear stiffness matrix, allowing it to function as a uniaxial tension-only element. This element effectively simulates slack conditions by removing stiffness when in compression.

PREREQUISITES
  • Understanding of Ansys element types, specifically LINK10 and LINK180.
  • Familiarity with hyperelastic material models in finite element analysis.
  • Knowledge of bilinear stiffness matrices and their applications.
  • Basic principles of tension-only and compression-only elements in structural analysis.
NEXT STEPS
  • Research the implementation of hyperelastic material models in Ansys.
  • Explore the properties and applications of LINK10 in tension-only scenarios.
  • Study the differences between LINK10 and LINK180 elements in Ansys.
  • Learn about bilinear stiffness matrix formulations and their impact on structural behavior.
USEFUL FOR

Engineers and analysts working with finite element modeling in Ansys, particularly those focusing on hyperelastic materials and tension-only structural elements.

Liub
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Hi,

What element should I use to model a tension-only (no bending stiffness) cable/chordae?

The problem is that I need to use a hyperelastic material model with it.
And LINK180 does not support the hyperelastic material model.

Thanks!
 
Have you looked at LINK10?

http://www.ansys.stuba.sk/html/elem_55/chapter4/ES4-10.htm
LINK10 is a three-dimensional spar element having the unique feature of a bilinear stiffness matrix resulting in a uniaxial tension-only (or compression-only) element. With the tension-only option, the stiffness is removed if the element goes into compression (simulating a slack cable or slack chain condition).
 

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