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

Journal of Chongqing Jiaotong University(Natural Science) ›› 2010, Vol. 29 ›› Issue (2): 188-189.

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

LI Rui，XIANG Zhong-fu

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

混凝土翼裂纹损伤区与断裂区边界方程探讨

李芮，向中富

重庆交通大学土木建筑学院，重庆 400074

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。

Abstract

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

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

CLC Number:

TU375

LI Rui，XIANG Zhong-fu. Study on Boundary Equations between Damage Zone and Fracture Zone for Wing Cracks in Concrete[J]. Journal of Chongqing Jiaotong University(Natural Science), 2010, 29(2): 188-189.

李芮，向中富. 混凝土翼裂纹损伤区与断裂区边界方程探讨[J]. 重庆交通大学学报（自然科学版）, 2010, 29(2): 188-189.

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

混凝土翼裂纹损伤区与断裂区边界方程探讨

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