The effects of strength mis-matching and specimen geometry on the resistance behavior to ductile crack growth for welded joint were conducted by 3-D FE analysis considering the micro-plastic damage.
通过考虑材料微观塑性损伤，定量研究了焊接接头中强度匹配、试件几何形状对接头抗延性裂纹扩展行为的影响。
Spectrum analysis was performed to determine the micro-mechanism of damage evolution of C fiber 3-D braiding composite material.
通过声发射波形信号的频谱分析，研究了碳纤维三维编织复合材料拉伸损伤的细观机理。
The composite of 3 D braided structure is a new kind of composites. Its shock damage resistant property, mechanical property and fire resistant property are fairly good.
三维编织结构复合材料是一种新型结构形式的复合材料，它具有优良的抗冲击损伤性能、力学性能和耐烧蚀性能。
On the other hand, ultrasonic CT technology is taken to detect interior damage of concrete to realize 3-D image reconstruction.
同时，本文研究了用超声CT成像技术对钢筋混凝土结构内部缺陷进行探测的问题，初步实现了对缺陷的三维重构。
On the other hand, ultrasonic CT technology is taken to detect interior damage of concrete to realize 3-D image reconstruction.
同时，本文研究了用超声CT成像技术对钢筋混凝土结构内部缺陷进行探测的问题，初步实现了对缺陷的三维重构。
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