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. Author manuscript; available in PMC: 2022 Jun 15.
Published in final edited form as: Compos B Eng. 2021 Mar 19;215:108803. doi: 10.1016/j.compositesb.2021.108803
Tension dominated failure
(σ22 > 0)
σ22YT+(τ12SL)2=1 (29)
Shear dominated failure
(σ22Tran<σ220)
(τ12SL)2+ασ22YT=1
α=YT|σ22Tran|[(|τ12Tran|SL)21]
(30)
Compression dominated failure
(Ycσ22σ22Tran)
(σ22YC)2+β2(τ12YC)2=1
β=YC|σ22Tran|SL
(31)
Fiber-compression dominated failure
(σ11 ≤ 0)
σ11XC+(τ12SL)2=1 (32)
Fiber-tension dominated failure
(σ11 > 0)
σ11XT=1 (33)