Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 94, Issue -, Pages 71-79Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2014.01.014
Keywords
Polymer-matrix composites (PMCs); Fatigue; Modeling; Hybrid composites
Categories
Funding
- Danish Council for Strategic Research (DSF) [10-094539]
- Danish Centre for Composite Structures and Materials for Wind Turbines (DCCSM) [09-067212]
Ask authors/readers for more resources
3D computational simulations of fatigue of hybrid carbon/glass fiber reinforced composites is carried out using X-FEM and multifiber unit cell models. A new software code for the automatic generation of unit cell multifiber models of composites with randomly misaligned fibers of various properties and geometrical parameters is developed. With the use of this program code and the X-FEM method, systematic investigations of the effect of microstructure of hybrid composites (fraction of carbon versus glass fibers, misalignment, and interface strength) and the loading conditions (tensile versus compression cyclic loading effects) on fatigue behavior of the materials are carried out. It was demonstrated that the higher fraction of carbon fibers in hybrid composites is beneficial for the fatigue lifetime of the composites under tension-tension cyclic loading, but might have negative effect on the lifetime under compression-compression, and has mixed effect for the tension-compression cyclic loading. Further, it was observed that while the fiber misalignment has some potential for increasing the fracture toughness of the hybrid composites, it speeds up the fiber damage and leads to the shortening of fatigue life. (C) 2014 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available