Burgers’ Equation and Plasticity

JP Bouchaud, Markus Rauscher

Downward Pointing Cusps
• Sharp Threshold for Plasticity
• Rises with Stress Maximum
• Reversible on Stress Backtracking (cusps smoothen)

Needs Further Work

• Cell structures refine with strain, cusps coarsen

• “Elastic” behavior

on wrong side of

stress-strain curve!

sY

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