| 陶瓷材料中圆形夹杂的本征应变导致的微开裂 |
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| 引用本文： | 曹宝宏,张宏图.陶瓷材料中圆形夹杂的本征应变导致的微开裂[J].物理学报,1986,35(6):750-761. |
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| 作者姓名： | 曹宝宏 张宏图 |
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| 作者单位： | 兰州大学材料科学系 |
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| 摘 要： | 由夹杂转变引起的微开裂与陶瓷材料的断裂和增韧机制密切相关。本文采用位错连续分布的方法,导出圆形夹杂发生本征应变时在母体材料中形成的微裂纹的位错密度函数、张开位移及应力强度因子的解析表达式,并据本文得到的结果进行了分析和讨论。
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| 收稿时间： | 1985-06-19 |
CRACKING DUE TO EIGEN STRAINS OF A CIRCULAR INCLUSION IN CERAMIC MATERIALS |
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| CAO BAO-HONG and ZHANG HONG-TU.CRACKING DUE TO EIGEN STRAINS OF A CIRCULAR INCLUSION IN CERAMIC MATERIALS[J].Acta Physica Sinica,1986,35(6):750-761. |
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| Authors: | CAO BAO-HONG and ZHANG HONG-TU |
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| Abstract: | The microcracks caused by the transforming inclusions associate closely with the mechanism of fracture and toughness in ceramic materials. Exact analytical expressions for dislocation density, opening displacement and stress intensity factors of microcracks in the matrix, caused by a circular transforming inclusion, have been derived by using dislocation theory method. The results obtained have been analyzed and discussed. |
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