PRINCIPAL STRESS MODEL FOR MULTI-AXIAL FATIGUE OF PRELOADED THREADED FASTENERS

被引：0
|
作者：
Kazemi, Amir [1 ]
Nassar, Sayed A. [1 ]
Wu, Zhijun [1 ]
机构：
[1] Oakland Univ, Dept Mech Engn, Fastening & Joining Res Inst, Rochester, MI 48309 USA
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2016, VOL. 2 | 2016年
关键词：
BOLTED JOINTS; SHEAR-STRESS; LIFE; COMPONENTS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A principal stress-based high cycle fatigue (HCF) model is proposed for cyclic multiaxial stresses in threaded fasteners under tensile-shear loading. The proposed model uses the fastener principle stress amplitude in order to construct mean stress adjusted S-N curves for multi-axial stresses. Experimental validation is provided using an MTS fatigue testing system, with a special fixture that would allow combined cyclic tensile-shear loading of the fastener at various angles relative to the axis of the MTS grip axis. Experimentally validated multiaxial fatigue model is compared to classical uniaxial S-N curves. Detailed discussion of the model results is provided.
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页数：9
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