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BilinearPeric

Bilinear Peric Viscous Plasticity Model

Theory

The rate of plasticity multiplier is defined as

γ˙=1μ(qσy1)1ϵ

where ϵ and μ are two material constants, σy is the initial yield stress, q=32s:s=3J2 is the von Mises stress.

The yielding surface is identical to that of the von Mises model.

Syntax

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material BilinearPeric (1) (2) (3) (4) (5) (6) (7) [8]
# (1) int, unique tag
# (2) double, elastic modulus
# (3) double, poissons ratio
# (4) double, yield stress
# (5) double, hardening modulus
# (6) double, mu
# (7) double, epsilon
# [8] double, density, default: 0.0