The role of accumulated plasticity on yield surface evolution in pearlitic steel
Journal article, 2023

In this paper, we analyze one specific assumption used in many cyclic plasticity models: The dependence of the yield surface evolution on the accumulated plasticity, i.e., the time-integrated plastic multiplier. We measure this scalar variable in carefully designed experiments and track the yield surface evolution. Our results show that this variable is insufficient to describe the isotropic or distortional hardening of the investigated steel, invalidating the commonly used assumption. The results highlight requirements for developing and verifying new isotropic and distortional hardening laws.

Isotropic hardening

Yield surface

Distortional hardening

Cyclic plasticity


Knut Andreas Meyer

Technische Universität Braunschweig

Johan Ahlström

Chalmers, Industrial and Materials Science, Engineering Materials

Mechanics of Materials

0167-6636 (ISSN)

Vol. 179 104582

Influence of anisotropy on deterioration of rail materials (CHARMEC MU34)

Chalmers Railway Mechanics (CHARMEC), 2015-05-18 -- 2020-05-15.

European Commission (EC), 2015-05-18 -- 2020-05-15.

Subject Categories

Applied Mechanics

Manufacturing, Surface and Joining Technology

Other Engineering and Technologies not elsewhere specified

Other Civil Engineering



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