A prediction method of fracture probability for lapped brittle plate

被引:0
|
作者
Wu, Zhe [1 ,2 ]
Lyu, Binghai [3 ]
Yuan, Julong [3 ]
Deng, Qianfa [3 ]
机构
[1] Hunan Univ, Natl Engn Res Ctr High Efficiency Grinding, Changsha 410082, Hunan, Peoples R China
[2] Hefei Univ Technol, Sch Mech Engn, Xuancheng 242000, Peoples R China
[3] Zhejiang Univ Technol, Ultraprecis Machining Ctr, Hangzhou 310014, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Ceramics; Brittle fracture; Surface flaw; Probabilistics; Loose abrasive lapping; SURFACE-ROUGHNESS; DAMAGE;
D O I
10.1016/j.engfracmech.2015.02.005
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Fracture of lapped brittle plate exhibits a random and uncertain property. In this study, based on a finite element division and the fracture mechanics of micro surface cracks, a numerical prediction approach for fracture cumulative distribution function (CDF) for lapped brittle plate under non-uniform stress field is proposed. Applications under different conditions are carried out, and influences of abrasive size and crack density on the proposed prediction method are discussed. The predicted Weibull parameters are in good agreement with experimental results, which establishes validation and potential engineering value of the proposed prediction method. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:265 / 278
页数:14
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