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Effects of Stress Concentration Factors on Corrosion Fatigue Strength of a Steel Plate for Ship Structures

机译：应力集中因素对船用钢板腐蚀疲劳强度的影响

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This paper presents the results of corrosion fatigue tests on notched specimens of a steel plate for ship structures. Stress concentration factors, Kt, are 1.2,2.0,2.93 and 3.77. The corrosion fatigue tests were carried out at a cycling rate of 0.17Hz under a natural corrosion condition in synthetic seawater. A corrosion fatigue strength was estimated from the S-N curves based on crack initiation life. The S-N curves were expressed by an equation LogN=A+=A+BΔS with experimental constants A and B. The Corrosion fatigue strength decreased with the increase in the stress concentration factor.
机译：本文介绍了用于船用结构钢板的缺口试样的腐蚀疲劳测试结果。应力集中系数Kt为1.2、2.0、2.93和3.77。腐蚀疲劳试验是在合成海水中在自然腐蚀条件下以0.17Hz的循环速率进行的。基于裂纹萌生寿命，从S-N曲线估计腐蚀疲劳强度。 S-N曲线由具有实验常数A和B的方程LogN = A + = A +BΔS表示。腐蚀疲劳强度随着应力集中系数的增加而降低。

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