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A platform for research: civil engineering, architecture and urbanism
Effect of multiaxial strain amplitudes on the cyclic behavior for SN490B steel under proportional loading
Abstract SN490B is used in main steel members of high-rise buildings. In this study, multiaxial cyclic tests were conducted on SN490B under a combination of axial tension, compression, and torsion. For a strain amplitude of εa = 0.3%, cyclic softening behavior was observed regardless of multiaxiality. The cyclic softening converged after approximately 100 cycles. However, no significant cyclic softening was observed at εa = 0.5%. The stress variation is expressed as a function of plastic strain. The stress variation equation developed for the cyclic softening and hardening behavior of SN490B accurately approximated the test results.
Highlights Axial-tortional cyclic tests were conducted for SN490B. Cyclic softening behavior was influenced by the multiaxial loading mode. No significant cyclic softening was shown at large equivariant strain amplitudes. Developed cyclic softening equation accurately approximates the test results.
Effect of multiaxial strain amplitudes on the cyclic behavior for SN490B steel under proportional loading
Abstract SN490B is used in main steel members of high-rise buildings. In this study, multiaxial cyclic tests were conducted on SN490B under a combination of axial tension, compression, and torsion. For a strain amplitude of εa = 0.3%, cyclic softening behavior was observed regardless of multiaxiality. The cyclic softening converged after approximately 100 cycles. However, no significant cyclic softening was observed at εa = 0.5%. The stress variation is expressed as a function of plastic strain. The stress variation equation developed for the cyclic softening and hardening behavior of SN490B accurately approximated the test results.
Highlights Axial-tortional cyclic tests were conducted for SN490B. Cyclic softening behavior was influenced by the multiaxial loading mode. No significant cyclic softening was shown at large equivariant strain amplitudes. Developed cyclic softening equation accurately approximates the test results.
Effect of multiaxial strain amplitudes on the cyclic behavior for SN490B steel under proportional loading
Teramae, Umi (author) / Hiyoshi, Noritake (author) / Hirata, Hiroshi (author) / Teranishi, Masaki (author) / Kaneko, Kensaku (author)
2023-12-19
Article (Journal)
Electronic Resource
English
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