Yamada-Sun Criterion
For Yamada-Sun, two criteria are implemented:
Yamada-Sun (standard → unidirectional)
Where the ply failure is evaluated as below:
Findex=σ21X2+τ212S2
being X=XT or X=XC if σ1≥0 or σ1<0 .
Syntax
YamandaSunFT(tensor,xt,xc,s,sets,plies,elems,parts,props,pool_name,layer_index,opt_str)
Arguments
- tensor
- Stress table
- xt
- Allowable tensile stress in ply material direction 1
- xc
- Allowable compressive stress in ply material direction 1
- s
- Allowable in-plane shear stress
- sets
- Set table (D=NULL)
- plies
- Ply table (D=NULL)
- elems
- Element table (D)
- parts
- Part table (D)
- props
- Property table (D)
- pool_name
- Pool name (D=@current_pool)
- layer_index
- Layer index (D=@current_slice_index)
- opt_str
- This is an optional argument, which can passed if needed (D=option).
Yamada-Sun 2D
Where the ply failure is evaluated as below:
Findex=max[σ21X2+τ212S2,σ22Y2+τ212S2]
being X=XT or X=XC if σ1≥0 or σ1<0 and the same for Y .
Syntax
YamandaSun2DFT(tensor,xt,xc,yt,yc,s,sets,plies,elems,parts,props,pool_name,layer_index,opt_str)
Arguments
- tensor
- Stress table
- xt
- Allowable tensile stress in ply material direction 1
- xc
- Allowable compressive stress in ply material direction 1
- yt
- Allowable tensile stress in ply material direction 2
- yc
- Allowable compressive stress in ply material direction 2
- s
- Allowable in-plane shear stress
- sets
- Set table (D=NULL)
- plies
- Ply table (D=NULL)
- elems
- Element table (D)
- parts
- Part table (D)
- props
- Property table (D)
- pool_name
- Pool name (D=@current_pool)
- layer_index
- Layer index (D=@current_slice_index)
- opt_str
- This is an optional argument, which can passed if needed (D=option).