An Experimental Study of Ratcheting Effect Under Multiaxial Proportional Loading

被引：5
|
作者：
Borodii, M. V. [1 ]
Stryzhalo, V. O. [1 ]
Kucher, M. K. [1 ]
Danyl'chuk, E. L. [1 ]
Adamchuk, M. P. [1 ]
机构：
[1] Natl Acad Sci Ukraine, Pisarenko Inst Problems Strength, Kiev, Ukraine
来源：
STRENGTH OF MATERIALS | 2014年 / 46卷 / 01期
关键词：
low-cycle fatigue; ratcheting; multiaxial loading; asymmetric proportional loading; plane stress state; tension; torsion; CYCLIC PLASTICITY; SOFTENING MATERIALS; UNIAXIAL BEHAVIOR; STAINLESS-STEEL; DEFORMATION;
D O I：
10.1007/s11223-014-9520-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The paper addresses the mechanical behavior of carbon steel 20 in asymmetric loading under the conditions of plane stress state that occurs in a thin-walled specimen in tension-compression and alternating torsion. The asymmetric cyclic loading of specimens was carried out in a stress-controlled mode along three paths with a frequency of 0.1 Hz with a base up to 1200 cycles. Cyclic stress-strain diagrams have been constructed for the specimens under tension-compression, alternating torsion, and proportional loading. The curves of von Mises equivalent ratcheting strains have been plotted. The highest ratcheting rate is shown to take place in the tension-compression loading case.
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页码：97 / 104
页数：8
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