journal article·2021-09Open access

Application of a nonlinear kinematic-isotropic material model for the prediction of residual stress relaxation under a cyclic load

Peter Zobec, Jernej Klemenc

Abstract

Abstract The effect of residual stress in the fatigue analysis of a formed products must be considered with great care. The relaxation of residual stress under a cyclic load is a transient phenomenon that is described in this paper using classic plasticity theory by employing a combined, non-linear, kinematic and isotropic hardening material model. Results were compared with experimental observations by means of contour method and digital-image-correlation method on specimens made of S235JR steel, with focus on near surface state. This research showed reasonable prediction of initial residual stress state and an over-prediction of strain ratcheting as cyclic load progresses.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Fatigue and fracture mechanics · Microstructure and Mechanical Properties of Steels · High Temperature Alloys and Creep

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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