Abstract
We characterize fracture and effective stress-strain graphs in 2D random composites subjected to a uniaxial in-plane uniform strain. The fibers are arranged randomly in the matrix. Both fibers and matrix are isotropic and elastic-brittle. We conduct this analysis numerically using a very fine two-dimensional triangular spring network and simulate the crack initiation and propagation by sequentially removing bonds which exceed a local fracture criterion. In particular, we focus on effect of geometric randomness on crack path of random composites. Based on that two stochastic micro-mechanic models are presented that can predict with confidence the failure probability of random matrix-inclusion composites.
Original language | English |
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Pages (from-to) | 7-16 |
Number of pages | 10 |
Journal | Composites Part B: Engineering |
Volume | 40 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2009 |
Keywords
- A: Computational modelling
- M: Nano-structures
- P: Fracture
- Polymer
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering