Interface toughness in fibre composites by the fragmentation test
- 作者：Detassis ; M. ; Frydman ; E. ; Vrieling ; D. ; X.-F. ; Zhou ; Wagner ; H. D. ; Nairn ; J. A.
- 关键词：fragmentation test ; interfacial debonding ; energy balance model
- 刊名：Composites Part A ; Applied Science and Manufacturing (Incorporating Composites and Composites Manufacturing)
- 出版年：1996
- 期刊代码：17_1359835x
- 类别：ms
- 出版时间：1996
- 卷：27
- 期：9
- 页码：769-773
- 文件大小：464 K
摘要
In the present work it is suggested that the degree of fibre-matrix bonding can be quantified by means of an energy for the nucleation of an interfacial debond, rather than by using a stress-based interfacial parameter. The energy necessary to initiate/nucleate an interfacial crack from its associated transverse fibre break during a single-fibre fragmentation test is calculated. The interface energy for the initiation of debonding is shown to be a function of the fibre and matrix geometrical and material characteristics, and of the initial debonding length. The novelty of the present work lies in the in-depth examination of the relative roles of the physical parameters that appear in the proposed theoretical model.