Volumetric Locking is exhibited by incompressible materials such as rubber having poisson's ratio near or equal to 0.5 resulting in an overly stiff response. The overly stiff response is depicted in figure below.
Showing posts with label hyperelasticity. Show all posts
Showing posts with label hyperelasticity. Show all posts
Thursday, March 24, 2011
Friday, March 18, 2011
Non Linear Hyperelastic Finite Element Analysis
This post would share Need To Knows & discuss some tips and tricks related to Non Linear HyperElastic FE Analysis.
NeedToKnow#1: The poisson's ratio of Rubber although being 0.5 is considered as 0.4955 in a Finite Element Analysis. The reason being that the Bulk modulus becomes infinity at Poissons ratio of 0.5. Also the volumetric strain equals near zero.
NeedToKnow#2: Nearly or Fully Incompressible Material (with Poisson's ratio nearly 0.5) exhibit Volumetric Locking in Fully Integrated Elements
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