TsaiWuFailureTheory

Calculates the Tsai-Wu Ply Failure Index.

Inputs

elems
An element entity table.
parts
A part entity table.
props
A property entity table.
xt
A material scalar table.
xc
A material scalar table.
yt
A material scalar table.
yc
A material scalar table.
s
A material scalar table.
f12
A material scalar table.
layer_idx
A layer index.
tensor
An elemental tensor value table.

Outputs

answer
An elemental scalar value table.

Comments

  • 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.
  • f12: Tsai-Wu experimental factor.
  • tensor: Stress tensor table.
  • The calculation of Tsai-Wu Failure Theory is for shell elements only, and applies to 2D tensors relative to the ply material system as described in the OptiStruct documentation for “Composite Laminates”.
  • layer_idx = layer index for the chosen data type, assigned by the HyperWorks application, and defaults to the value “@current_slice_index”. @current_slice_index represents the layer index for the chosen datatype.

Syntax

TsaiWuFT(elems,parts,props,xt,xc,yt,yc,s,f12,tensor,layer_index)

XML Example

<call name="TsaiWuFailureTheory" elems="elem_tab" 
parts="part_tab" props="prop_tab" xt="xt_tab" 
xc="xc_tab" yt="yt_tab" yc="yc_tab" 
s="s_tab" tensor="tens_tab" answer="ans_tab" />