INTERFACIAL DEBONDING OF FRC UNDER CYCLIC LOADING
来源期刊：Acta Metallurgica Sinica2004年第3期
论文作者：Q.J.Zhu Y.H.Chen J.Chen
Key words：interfacial debonding; fiber; matrix; cyclic loading; crack growth;
Abstract: With the increasingly use of FRC (fiber-reinforced composite) in urban lifelines, mechanical properties investigation is very important for disaster resistance, especially the investigation of fatigue properties. Based on the shear-lag model, an usual composite model under cyclic loading is established. According to the Paris formula, the relationship between interfacial fatigue parameters and the number of cycles is obtained under the cyclic loading. Interfacial fatigue properties of this model and the growth of the interfacial fatigue crack are analyzed. And the Poisson ratio is considered also.
Q.J.Zhu1，Y.H.Chen2，J.Chen1
(1.Department of Civil Engineering, Hebei Institute of Technology, Tangshan 063009, China;
2.School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China)
Abstract:With the increasingly use of FRC (fiber-reinforced composite) in urban lifelines, mechanical properties investigation is very important for disaster resistance, especially the investigation of fatigue properties. Based on the shear-lag model, an usual composite model under cyclic loading is established. According to the Paris formula, the relationship between interfacial fatigue parameters and the number of cycles is obtained under the cyclic loading. Interfacial fatigue properties of this model and the growth of the interfacial fatigue crack are analyzed. And the Poisson ratio is considered also.
Key words:interfacial debonding; fiber; matrix; cyclic loading; crack growth;
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