TY - JOUR
T1 - Mixed mode interface fracture toughness of a multi-directional composite – UD/woven pair
AU - Mega, Mor
AU - Banks-Sills, Leslie
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/12
Y1 - 2019/12
N2 - Twenty-seven mixed mode Brazilian disk specimens were tested to obtain the fracture toughness of a delamination between two fiber reinforced composite plies in a multi-directional laminate, manufactured by means of a wet-layup. Using finite element analyses and conservative integrals, mechanical and residual curing stress intensity factors were found and used to calculate the interface energy release rate and phase angles. Based on these results, a three-dimensional failure criterion is proposed to obtain a failure surface. This criterion may be used to predict failure of a structure containing this material and interface.
AB - Twenty-seven mixed mode Brazilian disk specimens were tested to obtain the fracture toughness of a delamination between two fiber reinforced composite plies in a multi-directional laminate, manufactured by means of a wet-layup. Using finite element analyses and conservative integrals, mechanical and residual curing stress intensity factors were found and used to calculate the interface energy release rate and phase angles. Based on these results, a three-dimensional failure criterion is proposed to obtain a failure surface. This criterion may be used to predict failure of a structure containing this material and interface.
KW - Brazilian disk specimen
KW - Delamination
KW - Fracture toughness testing
KW - Laminate composites
KW - Mixed mode fracture
UR - http://www.scopus.com/inward/record.url?scp=85072705688&partnerID=8YFLogxK
U2 - 10.1016/j.tafmec.2019.102323
DO - 10.1016/j.tafmec.2019.102323
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AN - SCOPUS:85072705688
SN - 0167-8442
VL - 104
JO - Theoretical and Applied Fracture Mechanics
JF - Theoretical and Applied Fracture Mechanics
M1 - 102323
ER -