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CRACK GROWTH ANALYZER AND CRACK GROWTH ANALYSIS METHOD
CRACK GROWTH ANALYZER AND CRACK GROWTH ANALYSIS METHOD
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机译：裂纹增长分析仪和裂纹增长分析方法
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摘要
PROBLEM TO BE SOLVED: To accurately predict a crack growth longevity in a structure having a different material joint part.SOLUTION: A crack growth analyzer 100 according to the invention comprises: a stress analysis part 12 that derives maximum stress and its direction in a first material at prescribed distance from an end of a crack and derives maximum stress and its direction in a second material; a crack growth rate derivation part 13 that derives each crack growth rate in the first material and the second material on the basis of a stress intensity factor and a material; an environmental susceptibility indicator calculation part 14 that calculates an environmental susceptibility indicator in the first material and an environmental susceptibility indicator in the second material, as functions of maximum stress and crack growth rate; a crack growing direction determination part 15 that determines a crack growing direction from the environmental susceptibility indicator in the first material and the environmental susceptibility indicator in the second material; and a crack growth volume calculation part 16 that calculates a crack growth volume using the crack growth rate about the material in the crack growing direction determined by the crack growing direction determination part 15.SELECTED DRAWING: Figure 1
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