Imperial College London
Alternate

Prof Ambrose Taylor

Faculty of Engineering, Department of Mechanical Engineering

Professor of Materials Engineering
 
 
 
//

Contact

 

+44 (0)20 7594 7149a.c.taylor Website

 
 
//

Assistant

 

Miss Valerie Crawford +44 (0)20 7594 7083

 
//

Location

 

515City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Fan:2023:10.1016/j.compscitech.2022.109873,
author = {Fan, W and Yang, H and Taylor, AC},
doi = {10.1016/j.compscitech.2022.109873},
journal = {Composites Science and Technology},
pages = {1--9},
title = {Numerical analysis of fracture in interpenetrating phase composites based on crack phase field model},
url = {http://dx.doi.org/10.1016/j.compscitech.2022.109873},
volume = {232},
year = {2023}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A numerical model based on crack phase field analysis is introduced to study the quasi-static fracture process in interpenetrating phase composites (IPCs). Materials were considered elastic solids, and the interface was assumed to be perfectly bonded. Tougher and stiffer tougheners lead to more fracture in the brittle phase, but less fracture in the toughening phase. Thus, the overall fracture performance results from competition between increasing breakage in the brittle phase and declining breakage in the toughening phase. The toughening mechanisms are discussed from both stress-strain and crack topology viewpoints. The toughening phase transfers the load from the crack tip to the whole domain until the maximum stress is reached, and impeded crack growth occurs afterwards. The load transferring and impediment effects made the brittle phase engage in fracture, and several crack propagation patterns were identified for the sacrificial fracture behaviour, namely, crack deflection, crack bridging, crack branching, microcracking and crack blocking. Moreover, fracture in three different microstructures (co-continuous, particle-reinforced, laminar) was compared, and the most effective toughening morphology depends on the tougheners and the loading states. This methodology enables optimum microstructures to be identified to achieve high toughness in aerospace and energy generation applications, increasing safety and reducing weight.
AU  - Fan,W
AU  - Yang,H
AU  - Taylor,AC
DO  - 10.1016/j.compscitech.2022.109873
EP  - 9
PY  - 2023///
SN  - 0266-3538
SP  - 1
TI  - Numerical analysis of fracture in interpenetrating phase composites based on crack phase field model
T2  - Composites Science and Technology
UR  - http://dx.doi.org/10.1016/j.compscitech.2022.109873
UR  - https://www.sciencedirect.com/science/article/pii/S0266353822006157?via%3Dihub
UR  - http://hdl.handle.net/10044/1/101291
VL  - 232
ER  -
Download