材料断裂失效Cracking Mechanics Testing Machine
作者 Ming
浏览
发布时间 18/10/29
断裂失效是金属材料在应力作用下材料分离为互不相连的两个或多个部分的现象。金属材料的断裂过程一般有三个阶段，即裂纹萌生、裂纹亚稳扩展及失稳扩展、断裂。金属构件在材料制造、构件成形或使用过程的不同条件下启裂、萌生裂纹，并受不同的环境因素及承载状态影响而使裂纹扩展至断裂。
金属构件在断裂部位都有匹配的两个断裂表面，称为断口。分析断口可以判断断裂的类型、断裂过程的机理，从而找出断裂的原因和预防断裂的措施。
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山东省计量测试学会力值硬度计量专业委员会委员济南恒瑞金试验机有限公司
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