The Proceedings of the Materials and Mechanics Conference
Online ISSN : 2424-2845
2015
Session ID : GS0209-268
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GS0209-268 Fatigue Strength of High Tensile Steel Spot-weld : 1. Evaluation with Stress Intensity Factor
Tatsuyuki AMAGO, Shoji HOTTA, Tomohiro SUZUKI, Takanori NAKAGAKI, Atsushi FUJII, Tadashi TAKEUCHI
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Keywords: Fatigue, Spot Weld, Fracture Mechanics, Stress Intensity Factor, High Tensile Steel
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Abstract
The spot weld of high tensile steel does not improve as base metal strength. However, with the application of high tensile steel by the body light weighting, the strength evaluation of the spot weld becomes important in a design. Therefore I perform the fatigue test of high tensile steel and spot welded joint and clarify control factor and a design guideline for the fatigue strength. As a result, I made clear that I could evaluate fatigue strength with a stress Intensity Factor mixed mode (mode I and mode II).
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© 2015 The Japan Society of Mechanical Engineers
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Proceedings of the 1992 Annual Meeting of JSME/MMD

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