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The Endochronic Approach for Structural Steel Subjected to Cyclic Loading

Published online by Cambridge University Press:  05 May 2011

Jun-Kai Lu  and
Nai-Kuan Ji
Jun-Kai Lu*
Affiliation:
Department of Civil Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan 91207, R.O.C.
Nai-Kuan Ji*
Affiliation:
Department of Civil Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan 91207, R.O.C.
*
*Associate Professor
**Research Assistant
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Abstract

The A36 structural steel shows significant Baushinger effect under cyclic loading. Present paper modifies the anisotropic endochronic model to describe the behaviors of the A36 structural steel subjected to cyclic loading. The deformation induced anisotropy has been considered to modify the definition of the intrinsic time. Also, the different hardening functions are used with respect to the mechanical behavior under loading and unloading condition, respectively. Then, the presented constitutive equations are used to describe the mechanical behaviors of the A36 structural steel under different cyclic strain paths. The theoretical results are compared with the experimental data. The test investigated includes several different cyclic uniaxial and axial-torsional loading experiments from Hong and his co-workers. It is shown that the present model is capable of describing the anisotropic behaviors of A36 structural steel well.

Type
Articles
Information
Journal of Mechanics , Volume 17 , Issue 1 , March 2001 , pp. 49 - 54
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2001

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References

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