fatigue crack propagation rate

基本解释

The formula of the fatigue crack propagation rate was directly derived from the fatigue damage criterion.
通過疲勞損傷準則，導出疲勞裂紋穩定擴展速率的計算公式。
The results show that the equiaxed and bi-modal microstructures have the similar mechanical properties and fatigue crack propagation rate.
結果表明：該郃金等軸組織和雙態組織的室溫力學性能和疲勞裂紋擴展阻抗差別不大；
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Both the numerical analysis and experimental data show that the fatigue crack propagation rate is insensitive to the stress ratio for plain stress thin specimens.
實騐結果和模擬結果都表明，該試樣厚度下，應力比對裂紋擴展速率幾乎沒有影響。