Difference between revisions of "Generalized Plane Stress and Strain"

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== Introduction ==
== Introduction ==


These methods extend plane stress to allow non-zero stress in the z direction and extended plane strain to allow non-zero strain in the z direction. They are experimental methods. The only method that can set z direction stress is to use a [[PropertyRamp Custom Task|custom thermal ramp tasks]]. If out-of-plane stress are strain are set, the currently only affect they material response for particles assigned to an [[Isotropic Material]].
These methods extend [[Analysis Command|Plane Stress MPM]] to allow non-zero stress in the ''z'' direction and extend [[Analysis Command|Plane Strain MPM]] strain to allow non-zero strain in the ''z'' direction. Currently, the only way to set the ''z'' direction stress or strain is to use a [[PropertyRamp Custom Task]]. Applying out-of-plane loading in these generalized methods is similar to applying in-plane loads in that if applied too fast, they will cause dynamic, shock effects. It is best to apply them at rates similar to rates used to apply any in-plane loads in a simulation.
 
== Material Support ==
 
These generalized 2D methods are in early development and not implement for all materials. The only materials that current model generalized plane stress or plane strain are:
 
* [[Isotropic Material|Isotropic]]
 
It should not be difficult to add to other materials when needed.

Latest revision as of 09:59, 4 January 2021

Introduction

These methods extend Plane Stress MPM to allow non-zero stress in the z direction and extend Plane Strain MPM strain to allow non-zero strain in the z direction. Currently, the only way to set the z direction stress or strain is to use a PropertyRamp Custom Task. Applying out-of-plane loading in these generalized methods is similar to applying in-plane loads in that if applied too fast, they will cause dynamic, shock effects. It is best to apply them at rates similar to rates used to apply any in-plane loads in a simulation.

Material Support

These generalized 2D methods are in early development and not implement for all materials. The only materials that current model generalized plane stress or plane strain are:

It should not be difficult to add to other materials when needed.