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工业建筑  2008 

FRP加固钢梁胶层界面的断裂力学分析

DOI: 10.13204/j.gyjz200811026, PP. 106-108

Keywords: FRP,胶层界面,断裂力学,能量释放率

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Abstract:

疲劳试验研究表明,FRP加固钢梁可以大大改善钢结构的疲劳寿命,但FRP端部胶层界面容易发生脱胶,影响加固效果。采用断裂力学分析方法,应用分析模型、简化分析模型和有限元方法得到胶层界面裂纹扩展过程的能量释放率G,提出避免FRP端部发生胶层界面破坏的措施。

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