Delamination onset in symmetric cross-ply laminates under static loads: Theory, numerics and experiments

被引:28
|
作者
Carraro, Paolo Andrea [1 ]
Novello, Elisa [1 ]
Quaresimin, Marino [1 ]
Zappalorto, Michele [1 ]
机构
[1] Univ Padua, Dept Management & Engn, Str S Nicola 3, Vicenza, Italy
关键词
Delamination; Transverse cracks; Cross ply laminates; Generalized Stress Intensity Factors; STRESS INTENSITY FACTOR; CRACK INDUCED DELAMINATION; INTERFACE RELATED DAMAGE; MIXED-MODE DELAMINATION; LAP BONDED JOINTS; FATIGUE DELAMINATION; TRANSVERSE CRACKING; FRACTURE INITIATION; SHARP NOTCHES; PART II;
D O I
10.1016/j.compstruct.2017.05.030
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
In this paper, the delamination onset from transverse cracks in composite cross-ply laminates under static loadings is thoroughly investigated. Initially, an analytical solution is presented for the local mode I, II and III stress fields arising in the close neighbourhoods of a transverse crack, stresses being written as a function of Generalized Stress Intensity Factors (GSIFs). Then, a fracture criterion for the delamination onset in cross-ply laminates under tension, based on a critical value for the mode 1 GSIF, is proposed and validated taking advantage of the results from an experimental campaign carried out in the present work, as well as reconsidering some data taken from the literature. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:420 / 432
页数:13
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