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首页> 外文期刊>Key Engineering Materials >Stress Intensity Factor Equation for Center Cracked Tension (CCT) Specimens of Fiber Reinforced Metal Laminates under Cyclic Loading
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Stress Intensity Factor Equation for Center Cracked Tension (CCT) Specimens of Fiber Reinforced Metal Laminates under Cyclic Loading

机译：循环载荷下纤维增强金属层合板中心开裂应力（CCT）试样的应力强度因子方程

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摘要

Based on the experimental observations that crack growth in fiber reinforced metal laminates (FRMLs) under fatigue loading tends to reach a steady state, stress intensity factor equation of FRMLs was derived in this paper. A material constant, the equivalent crack length (lo) of FRMLs, was found. The analytical equation for the stress intensity factors of the CCT specimens of FRMLs was verified by experimental data, which were calculated from the testing results of crack growth rates in GLARE based upon the crack growth rate equation of the constituent metal sheet. The stress intensity Factor equation agreed very well with the experimental data.
机译：基于实验结果表明，疲劳载荷作用下纤维增强金属层压板（FRML）的裂纹扩展趋于稳定，本文推导了FRML的应力强度因子方程。发现了材料常数，即FRML的等效裂纹长度（lo）。通过实验数据验证了FRMLs CCT试样的应力强度因子的解析方程，该实验方程是根据GLARE中裂纹扩展速率的测试结果，根据组成金属板的裂纹扩展速率方程计算得出的。应力强度因子方程与实验数据非常吻合。

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