The drill pipe failure assessment demonstrates the longitudinal brittle fracture will be avoided when the transverse impact power of the material is over 80J.
应用钻杆失效评估技术研究表明，横向材料冲击功大于80J将避免钻杆内螺纹接头纵向脆性开裂失效。
The mechanism of the transverse cracking failure in water wall and causes are analyzed.
探讨锅炉水冷壁横向裂纹的机理。
The analyzing results indicate that the longitudinal and the transverse stress in the fibres and the stress concentration are the major reasons that lead to the failure of the fibres ahead of time.
分析的结果表明，纤维布的纵横双向受力以及较大的应力集中是导致其提早破坏的主要原因。
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