A Simple Relationship Between Axial and Torsional Cyclic Parameters

作者：Li, Jing^*; Zhang, Zhong-ping; Sun, Qiang; Li, Chun-wang; Li, Rong-sui

来源：Journal of Materials Engineering and Performance, 2011, 20(7): 1289-1293.

DOI：10.1007/s11665-010-9748-4

• cyclic shear strain hardening exponent
• cyclic shear strength coefficient
• cyclic strain hardening exponent
• cyclic strength coefficient
• theoretical estimation

The ultimate purpose of the present article is to theoretically estimate the cyclic shear strength coefficient and the cyclic shear strain hardening exponent. For this purpose, the relationship between axial and torsional cyclic parameters is addressed in light of the von-Mises criterion. Material data for 15 kinds of material have been taken from the technical literature to check the accuracy and reliability of the developed correlations. Maximum differences of 18.6 and 27.7% were observed for theoretical versus experimental results for the cyclic shear strength coefficient and the cyclic shear strain hardening exponent, respectively. Experimental verifications show that the devised relationship can describe the cyclic shear stress-strain curves well. The characteristic of the theoretical approach is simple and easy to use. In addition, the theoretical results can be further applied to examine the correctness of the test data.

• 出版日期2011-10
• 单位中国人民解放军空军工程大学