冷作模具钢DC53断裂性能研究Fracture properties of cold working die steel DC53
张峪铭;罗远新;陈世磊;
摘要(Abstract)：
针对冷作模具钢DC53的断裂失效情况,开展断裂韧度及疲劳裂纹扩展试验,获得材料断裂性能参数。基于线弹性断裂力学理论,运用三维断裂分析软件FRANC3D模拟计算含有穿透型裂纹的标准紧凑拉伸CT试样的裂纹前缘应力强度因子,由Paris公式计算裂纹扩展寿命,并将理论计算、数值模拟和断裂力学试验进行对比研究。结果表明:数值模拟、理论计算以及试验得到的裂纹扩展寿命在16.7%的合理误差范围内。
关键词(KeyWords)： 冷作模具钢;DC53;断裂力学;裂纹扩展
基金项目(Foundation): 国家自然科学基金(51405044);; 机械传动国家重点实验室特色项目(SKLMT-ZZKT-2015T01)
作者(Author): 张峪铭;罗远新;陈世磊;
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DOI:
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