Interfacial delamination crack profile estimation in polymer foam-cored sandwich composites

被引：4
|
作者：
Mitra, Nilanjan [1 ]
Patra, Alakkumar [1 ,3 ]
Mondal, Shyamal [2 ,4 ]
Datta, Prasanta Kumar [2 ]
机构：
[1] Indian Inst Technol Kharagpur, Dept Civil Engn, Kharagpur, W Bengal, India
[2] Indian Inst Technol Kharagpur, Dept Phys, Kharagpur, W Bengal, India
[3] SRM Inst Sci & Technol, Dept Civil Engn, Chennai, Tamil Nadu, India
[4] SRM Inst Sci & Technol, Dept Elect & Commun Engn, Chennai, Tamil Nadu, India
来源：
ENGINEERING STRUCTURES | 2019年 / 189卷
关键词：
BRAGG GRATING SENSORS; FRACTURE;
D O I：
10.1016/j.engstruct.2019.03.076
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Parabolic profile of cracks is well known in fracture mechanics, which typically develops in metallic systems. The profile of Interfacial delamination cracks in polymer foam cored sandwich composite structure is being investigated in this work using a procedure of embedded fiber Bragg grating sensor array with wavelength division multiplexing. The observed arbitrary nature of the crack profile in the mode I dominated loading condition, raises questions on the parabolic crack profile as well as on the assumption of numerous variables for numerical simulations of crack propagation problems especially for polymer foam-cored sandwich materials.
引用
收藏
页码：635 / 643
页数：9
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