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. 2022 Aug 9;14(16):3243. doi: 10.3390/polym14163243
σ (MPa) Stress tensor
ε (1) Strain tensor
E10 (MPa) Elastic modulus of non-damaged material in direction 1
E20 (MPa) Elastic modulus of non-damaged material in direction 2
G120 (MPa) Shear modulus of non-damaged material in plane 12
G130 (MPa) Transverse shear modulus of non-damaged material in plane 13
G230 (MPa) Transverse shear modulus of non-damaged material in plane 23
ν120 (1) Poisson’s ratio of undamaged material in plane 12
E1d (MPa) Consolidated elastic modulus of damaged material in direction 1
E2d (MPa) Consolidated elastic of damaged material in direction 2
G12d (MPa) Consolidated shear modulus of damaged material in plane 12
G13d (MPa) Consolidated transverse shear modulus of damaged material in plane 13
G23d (MPa) Consolidated transverse shear modulus of damaged material in plane 23
ν120 (1) Poisson’s ratio of undamaged material in plane 12
d1 (1) Consolidated damage factor in direction 1
d2 (1) Consolidated damage factor in direction 2
ds (1) Consolidated shear damage factor
F1,u+ (MPa) Ultimate tensile stress in direction 1
F1,u (MPa) Ultimate compressive stress in direction 1
F2,u+ (MPa) Ultimate tensile stress in direction 2
F2,u (MPa) Ultimate compressive stress in direction 2
F12,u (MPa) Ultimate shear stress in plane 12
F13,u (MPa) Ultimate shear stress in plane 13
F23,u (MPa) Ultimate shear stress in plane 23
ε1,u+ (1) Ultimate tensile strain in direction 1
ε1,u (1) Ultimate compressive strain in direction 1
ε2,u+ (1) Ultimate tensile strain in direction 2
ε2,u (1) Ultimate compressive strain in direction 2
U1+ (mJ/mm2) Tensile fracture energy in direction 1
U1 (mJ/mm2) Compressive fracture energy in direction 1
U2+ (mJ/mm2) Tensile fracture energy in direction 2
U2 (mJ/mm2) Compressive fracture energy in direction 2
R3,u (MPa) Normal cohesive strength in the direction 3
R13,u (MPa) Shear cohesive strength in plane 13
R23,u (MPa) Shear cohesive strength in plane 23
D1 (mJ/mm2) Normal fracture energy in the direction 3
D13 (mJ/mm2) Shear fracture energy in plane 13
D23 (mJ/mm2) Shear fracture energy in plane 23