TY - JOUR
T1 - Quasi-static modes I, II and mixed modes I/II fracture toughness of two laminate composites
T2 - Part II — micro-computerized tomography and numerical simulations
AU - Shor, Ofir
AU - Banks-Sills, Leslie
AU - Simon, Ido
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2023/1
Y1 - 2023/1
N2 - In Part I of this paper, quasi-static fracture toughness tests were reported which were carried out on two carbon fiber reinforced polymer materials. One laminate was unidirectional and the second was composed of plies fabricated from a twill fabric. In Part II, which is presented here, micro-computerized tomography was performed providing a relationship between the observed experimental behavior and the micromechanical structure of the materials. This was carried out for the double cantilever beam (DCB), mixed mode bending (MMB) and end-notched flexure (ENF) specimens. Load–displacement curves were simulated numerically by means of a cohesive zone model and the finite element method to obtain better insight into the failure mechanisms observed for DCB and ENF specimens.
AB - In Part I of this paper, quasi-static fracture toughness tests were reported which were carried out on two carbon fiber reinforced polymer materials. One laminate was unidirectional and the second was composed of plies fabricated from a twill fabric. In Part II, which is presented here, micro-computerized tomography was performed providing a relationship between the observed experimental behavior and the micromechanical structure of the materials. This was carried out for the double cantilever beam (DCB), mixed mode bending (MMB) and end-notched flexure (ENF) specimens. Load–displacement curves were simulated numerically by means of a cohesive zone model and the finite element method to obtain better insight into the failure mechanisms observed for DCB and ENF specimens.
KW - Carbon fiber reinforced polymers
KW - Cohesive zone modeling
KW - Fracture toughness testing
KW - Micro-computerized tomography
KW - Mixed modes
UR - http://www.scopus.com/inward/record.url?scp=85143860554&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2022.108976
DO - 10.1016/j.engfracmech.2022.108976
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AN - SCOPUS:85143860554
SN - 0013-7944
VL - 277
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
M1 - 108976
ER -