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HyperElastic material does not follow Prescribed Displacement BC
Posted 28.04.2016, 06:38 GMT-4 Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics 0 Replies
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I am modeling a Lip Seal and I wanted to compare the Dispalcement Field when using a Linear Elastic material or when setting a HyperElastic one. The model is 2D axysimmetric (see picture attached).
Since the seal is confined in a defined space, I am using the Prescribed Displacement BC to account for the shaft and the seal housing . Two Prescribed Displacement BCs on Z (top and bottom) and two Prescibed Displacement BCs on R (left and rigt).
Funnily when I use a Linear Elastic material, the Prescribed Displacement BC is perfectly followed (snap on the left side). However, when I switch it to HyperElastic (snap on the right side) the Prescribed Displacement are not really accounted.
Any idea? I am finding asolution for the HyperElastic way too early? I was checking the Relaxation and Solver parameters but I did not manage to get any improvement...
Thanks in advance,
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Hello Francesc-Xavier Borras
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