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考虑损伤时材料的断裂应力
RESEARCH ABOUT THE FRACTURE STRESS OF THE DAMAGED MATERIAL
【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 ,损伤断裂应力的计算公式
【Abstract】 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】 有效应力;
损伤因子;
损伤模量;
表面能密度;
断裂应力;
【Key words】 effective stress; damage factor; damage moduli; surface energy density; fracture stress;
【Key words】 effective stress; damage factor; damage moduli; surface energy density; fracture stress;
- 【文献出处】 山东农业大学学报(自然科学版) ,Journal of Shandong Agricultural University , 编辑部邮箱 ,2004年01期
- 【分类号】TB301
- 【被引频次】1
- 【下载频次】156