中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2010, Vol. 29 ›› Issue (2): 188-189.

• • 上一篇    下一篇

混凝土翼裂纹损伤区与断裂区边界方程探讨

李芮,向中富   

  1. 重庆交通大学土木建筑学院,重庆 400074
  • 收稿日期:2009-11-06 修回日期:2009-12-21 出版日期:2010-04-15 发布日期:2015-01-22
  • 作者简介:李芮(1985—),女,四川南充人,硕士研究生,主要从事桥梁结构方面的研究。E-mail:lirui841120@126.com。

Study on Boundary Equations between Damage Zone and Fracture Zone for Wing Cracks in Concrete

LI Rui,XIANG Zhong-fu   

  1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2009-11-06 Revised:2009-12-21 Online:2010-04-15 Published:2015-01-22

摘要: 应用西多霍夫损伤模型和断裂力学耦合分析方法,探讨了单向受压的翼形裂纹,推导出混凝土翼形裂纹损伤 区与断裂区的边界方程,确定了混凝土翼裂纹初始损伤区和断裂区的径向尺寸,最后确定了不同翼裂纹倾角的起 裂点坐标,为研究混凝土翼裂纹的扩展提供了新的可行性思路。

关键词: 混凝土, 翼形裂纹, 断裂与损伤耦合

Abstract: The wing cracks due to unidirectional compression in concrete were analyzed by coupling the Sidoroff damage model with fracture mechanics. Boundary equations between damage zone and fracture zone were derived to determine the radial sizes of initial damage and fracture zones due to wing cracks. Finally,the coordinate of initial cracking point of different wing cracks was determined and new feasibility idea was provided for study the wing cracks intended in concrete.

Key words: concrete, wing crack, coupling of fracture and damage

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