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 |
νxy/νyx | 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 |
σx/σy | 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] |
Symbols
Parent Chapter