结果表明，随筛板孔距的增加，其拉伸强度、拉伸屈服应力及拉伸断裂应力均提高；
The results showed that tensile strength, tensile yield stress and tensile breaking stress were increased with the increase of bore distance;
力学模型分析表明，基体残余压应力以抵抗基体拉伸变形的方式提高了铬层的断裂韧性；
The analysis of mechanical model shows that the fracture toughness is improved by residual compressive stress of substrate surface, which resists the tensile deformation of substrate.
基于此模型，分析了受拉伸的层内混杂复合材料中某些纤维断裂后的应力重分布。
Based on the model, the stress redistributions due to the failure of some fibers in an intraply hybrid composite under tension are analyzed.
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