Open AccessPrediction of ultimate burst pressure and comparison of failure criteria for thermoplastic composite pipes
Author(s) -
Pengli Ge,
Heping Xia,
Q Liu,
Chen Shi,
Wei Xiao,
Xiaobin Jia,
Yunfang Xu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/725/1/012004
Subject(s) - materials science , internal pressure , composite number , composite material , stress (linguistics) , thermoplastic , finite element method , structural engineering , layer (electronics) , engineering , philosophy , linguistics
Thermoplastic composite pipes (TCPs) are becoming the ideal substitute for traditional steel pipe due to its superiorities including light weight and corrosive resistance. The cross-section of TCPs consists of an inner liner, a laminate layer, and an outer jacket. The laminate layer is made of multi-plies of helically wound continuous fibre reinforced unidirectional tape. In the present study, a three-dimensional (3D) theoretical model and a 3D finite element model were developed to analyse the stress state of a TCP under internal pressure. With a selected failure criterion for composite laminate, the ultimate burst pressure of a TCP can be predicted. By comparing the predicted burst pressure with the experimental results, several commonly used failure criteria were compared in terms of their accuracy.