Viscoplastic Lemaitre and Prager material properties (Simcenter Samcef)

Viscoplastic materials depend on strain velocity. Viscoplasticity can be compared to plasticity when time effects are taken into account.

You can define Simcenter Samcef viscoplastic Lemaitre and Prager properties in a Samcef Isotropic Structure, in a Samcef Orthotropic Structure, or in a Samcef Anistropic Structure material, in the Viscoplasticity page on the Manage Materials dialog box.

Lemaitre law (isotropic hardening)

Viscoplastic property	Notes
Viscoplastic Type	Select Lemaitre Law (.MAT BEHAV "LWLE").
Creep parameters
Creep Parameter (EXPN)	n exponent.
Creep Parameter (BIGK)	K resistance factor.
Hardening parameter
Istropic Hardening (EXPM)	m exponent.
Damage parameters
Damage Parameter (COEN)	1/S coefficient.
Damage Parameter (EXEN)	m coefficient.
Damage Parameter (PDEN)	elim value.
Damage Parameter (DDEN)	dmax value.

Prager law (linear kinematic hardening)

Viscoplastic property	Notes
Viscoplastic Type	Select Prager Law (.MAT BEHAV "LWPR").
Creep parameters
Creep Parameter (EXPN)	n exponent.
Creep Parameter (BIGK)	K resistance factor.
Creep Parameter (LITK)	k factor.
Hardening parameter
Kinematic Hardening (COCA)	ca1 coefficient.
Damage parameters
Damage Parameter (COEN)	1/S coefficient.
Damage Parameter (EXEN)	m coefficient.
Damage Parameter (PDEN)	elim value.
Damage Parameter (DDEN)	dmax value.

Note:

You can only use these properties in a Simcenter Samcef structural non-linear analysis.

For more information, see the viscoplastic behaviors page in the Simcenter Samcef solver documentation.

Where do I find it?

Application	Pre/Post
Prerequisite	Simcenter Samcef as the selected solver
Command Finder	Manage Materials
Location in dialog box	Type list→Isotropic or Orthotropic or Anisotropic→Create Material →Viscoplasticity page

Look up more details

Viscoplastic properties in the Material dialog box (Simcenter Samcef)

Isotropic Material Definition dialog box (Simcenter Samcef Structure)

Orthotropic Material dialog box (Simcenter Samcef Structure)

Anisotropic Material Definition dialog box (Simcenter Samcef Structure)

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Viscoplastic Lemaitre and Prager material properties (Simcenter Samcef), Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });