Mean Strain Effect on the Cyclic Stress-Strain Behavior of Steel Structure Materials Q235

Yi Guo; Yun Rong Luo; Qingyuan Wang

doi:10.4028/www.scientific.net/AMR.602-604.430

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Mean Strain Effect on the Cyclic Stress-Strain...

Mean Strain Effect on the Cyclic Stress-Strain Behavior of Steel Structure Materials Q235

Abstract:

The low cycle fatigue (LCF) behavior of Q235 steel under mean strain control has been investigated. A serious of the strain controlled cyclic loading experiments with several combinations of strain amplitudes and mean strains have been performed. Significant cyclic hardening and mean stress relaxation were observed in all cases. Fractography by scanning electron microscopy (SEM) was used to determine the LCF failure mechanisms and fatigue crack propagation modes of the Q235 steel.

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Periodical:

Advanced Materials Research (Volumes 602-604)

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430-434

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.430

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Online since:

December 2012

Authors:

Yi Guo, Yun Rong Luo, Qingyuan Wang

Keywords:

Cyclic Stress-Strain Curve, Low Cycle Fatigue (LCF), Mean Strain, Q235 Steel

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