The P wave is inversely proportional to crack density.
波速度与裂隙密度成反比关系。
Because the most of cracks occur in early stage, it is very important to find out the causes of crack occurrence and its control countermeasures. This p...
而裂缝大多又是在早期产生的，因此，探讨裂缝产生的原因和防止裂缝的出现就显得格外重要。
The results show that brittle fracture occurs in matrix and the P-WCMOD(crack mouth opening displacement) curve is linear till loading to failure.
实验结果表明：水泥基体发生脆性断裂，从加载到试件破坏P-WCMOD曲线一直呈线性；
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