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延性材料不同断裂准则的对比研究 被引量：1

Comparatively study on various crack formation criteria of ductile material
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摘要 从特定的工程背景出发,回顾了对延性材料断裂解释的不同力学原理及各种断裂准则。根据开孔铝合金(Al2024-T35)矩形板断裂试验的数值模拟结果,对比评判了不同断裂准则的适用性和精度。分析结果显示,文献[8]建议的延性材料在应力三轴空间中的裂纹形成准则具有较高精度。 Starting off background of specifically engineering, this article reviewed mechanics theory of yield and fracture in classical mechanics and fracture mechanics and various crack formation criteria of ductile material. On basis of numerical simulation results and experiments of flat rectangular plates （ Al2024 - T35 ） with a circular hole subjected to tensile loads, this article comparatively studied on applicability and precision of various crack formation criteria of ductile material. The analysis results revealed that the crack formation criterion suggested by reference [ 8 ] had sufficient accuracy in forecast crack formation of ductile material in stress triaxiality space.
作者 王万祯 孙玉萍 顾强
机构地区 兰州理工大学土木工程学院 苏州科技学院土木工程系
出处 《四川建筑科学研究》 北大核心 2008年第3期17-20,共4页 Sichuan Building Science
基金 甘肃省自然科学基金(3ZS051-A25-044) 兰州理工大学科研基金(SB042004080416B-05)
关键词 屈服 断裂 延性材料 应力三轴空间 断裂准则 对比研究 yield fracture ductile material stress triaxiality space crack formation criteria comparatively study
分类号 TU391 [建筑科学—结构工程]
  • 相关文献

参考文献11

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二级参考文献19

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共引文献753

同被引文献11

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  • 3虞松,陈军,阮雪榆.韧性断裂准则的试验与理论研究[J].中国机械工程,2006,17(19):2049-2052. 被引量：31
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  • 10Liang Xue. Damage accumulation and fracture initiation in uncracked ductile solids subject to triaxial loading. International Journal of Solids and Structures, 2007, 44: 5163- 5181.

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二级引证文献12

四川建筑科学研究
2008年 第3期

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