考虑损伤时材料的断裂应力  

RESEARCH ABOUT THE FRACTURE STRESS OF THE DAMAGED MATERIAL

作　　者：戴景军[1] 张兆国 周群[3] 邱秀梅[1] 郑九华[1] 周军[1] 

机构地区：[1]山东农业大学水利土木工程学院,山东泰安271018 [2]梁山县水利局,山东梁山274800 [3]济南铁路分局泰安铁路建筑设计院,山东泰安271000

出　　处：《山东农业大学学报（自然科学版）》2004年第1期102-104,共3页Journal of Shandong Agricultural University：Natural Science Edition

摘　　要：工程结构的损伤分析、寿命预测及材料细观损伤机理与材料的强韧化研究 ,具有十分重要的工程意义 ,并具有广阔的发展前景。本文研究考虑损伤时材料的断裂应力 ,推导出了在表面能密度有限的情况下 。It is important and necessary for a building to analyze the damage of engineering structures, to calculate the service life, and to study the dense-toughness and damage mechanism of the materials carefully. And then, the research will have a wider using and developing future. In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.

关 键 词：损伤 材料 断裂应力 计算公式 拉伸强度 表面能密度 

分 类 号：TB301[一般工业技术—材料科学与工程]