608x
003612
2023-10-17

Symbols

Symbol Meaning
t Thickness of a layer [mm]
d Total structure thickness [mm]
β Orthotropic direction [°]
E Young's modulus [N/mm²]
Ex Young's modulus in x-direction [N/mm²]
Ey Young's modulus in y-direction [N/mm²]
G Shear modulus [N/mm²]
Gxy Shear modulus in xy direction [N/mm²]
Gxz Shear modulus in xz direction [N/mm²]
Gyz Shear modulus in yz direction [N/mm²]
ν Poisson's ratio
νxyyx Transverse strain in the xy plane
dij Elements of the partial stiffness matrix of each layer
Dij Elements of the global stiffness matrix of the total thickness
σxy Normal stresses in the x or y direction [N/mm²]
τxz Shear stress in x-direction [N/mm²]
τxy Shear stress in the plane of the pane (failure mode 1) [N/mm²]
τnet Shear stress in the net section (x- and y-direction) (failure mode 2)
Determine τttr Torsional shear stresses in the intersection section (failure mode 3)
τyz Rolling shear stresses
n number of layers
z z-axis [m]
fm,0,k Characteristic flexural strength in x-direction [N/mm²]
fm,90,k Characteristic flexural strength in y-direction [N/mm²]
ft,0,k Characteristic tensile strength in x-direction [N/mm²]
ft,90,k Characteristic tensile strength in y-direction [N/mm²]
fc,0,k Characteristic compressive strength in x-direction [N/mm²]
fc,90,k Characteristic compressive strength in y-direction [N/mm²]
fxz,k Characteristic shear strength [N/mm²]
fxy,k Characteristic shear strength (failure mode 1) [N/mm²]
fv,net,k Characteristic shear strength (failure mode 2) [N/mm²]
fyz,k Characteristic rolling shear strength [N/mm²]
Parent Chapter