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.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2004年第1期102-104,共3页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
损伤
材料
断裂应力
计算公式
拉伸强度
表面能密度
effective stress, damage factor, damage moduli, surface energy density, fracture stress
