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.

引用

页数：9

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