TY - JOUR
T1 - The effect of through-thickness compressive stress on mode II interlaminar crack propagation
T2 - A computational micromechanics approach
AU - Varandas, L F
AU - Arteiro, A.
AU - Bessa, Miguel A.
AU - Melro, A R
AU - Catalanotti, G.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - A micromechanics framework for modelling the mode II interlaminar crack onset and propagation in fibre-reinforced composites is presented with the aim of i) modelling the micro-scale failure mechanisms that underlie interlaminar crack propagation, and ii) determining the effect of the through-thickness pressure on mode II fracture toughness. An algorithm for the generation of the fibre distribution is proposed for the generation of three-dimensional Representative Volume Elements (RVEs). Appropriate constitutive models are used to model the different dissipative effects that occur at crack propagation. Numerical predictions are compared with experiments obtained in previous investigations: it is concluded that the proposed micromechanical model is able to simulate conveniently the interlaminar crack propagation and to take into account the effect of the through-thickness pressure on mode II interlaminar fracture toughness.
AB - A micromechanics framework for modelling the mode II interlaminar crack onset and propagation in fibre-reinforced composites is presented with the aim of i) modelling the micro-scale failure mechanisms that underlie interlaminar crack propagation, and ii) determining the effect of the through-thickness pressure on mode II fracture toughness. An algorithm for the generation of the fibre distribution is proposed for the generation of three-dimensional Representative Volume Elements (RVEs). Appropriate constitutive models are used to model the different dissipative effects that occur at crack propagation. Numerical predictions are compared with experiments obtained in previous investigations: it is concluded that the proposed micromechanical model is able to simulate conveniently the interlaminar crack propagation and to take into account the effect of the through-thickness pressure on mode II interlaminar fracture toughness.
KW - Delamination
KW - Fracture toughness
KW - Computational mechanics
KW - Finite element analysis (FEA)
KW - Through-thickness compressive stress
UR - http://www.scopus.com/inward/record.url?scp=85029939269&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2017.09.020
DO - 10.1016/j.compstruct.2017.09.020
M3 - Article (Academic Journal)
AN - SCOPUS:85029939269
SN - 0263-8223
VL - 182
SP - 326
EP - 334
JO - Composite Structures
JF - Composite Structures
ER -