期刊
ENGINEERING FRACTURE MECHANICS
卷 115, 期 -, 页码 43-59出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2013.11.014
关键词
Pultruded GFRP composites; Fracture mechanics; Mode partition; Asymmetric MMB; Finite element
类别
资金
- Swiss National Science Foundation [200020-121756]
- Fiberline Composites A/S, Denmark
- Swiss National Science Foundation (SNF) [200020_121756] Funding Source: Swiss National Science Foundation (SNF)
The mixed-mode fracture behavior of adhesively-bonded pultruded glass fiber-reinforced polymer joints was experimentally investigated using asymmetric mixed-mode bending specimens. The crack propagated along paths outside the symmetry plane and, therefore, mode partition could not be performed in the standardized way as for symmetric specimens. An approach based on the existing global method, designated the extended global method, was established and applied for the analysis of the experimental data and the fracture mode partitioning. Finite element models were developed in order to validate the approach. The virtual crack closure technique was used for calculation of the fracture components at the crack tip and an exponential traction-separation cohesive law was used to simulate the fiber bridging zone. In addition, the experimental compliance method was used for calculation of the fracture energy for the examined asymmetric mixed-mode bending specimens. Results obtained using the extended global method and the experimental compliance method were in good agreement with the results from FE models. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据