Example Definition

The definition below is given by the Result Math expression built using an OptiStruct model (*.fem) and the relevant results (*.op2) where Composite Stress had been requested through the CSTRESS(OUTPUT2) control card and material allowables had been assigned to the MAT8 card for Xt,Xc,Yt,Yc and S values.

The Hashin Failure criteria for Matrix output has been selected.

HashinFT("Composite Stress","LC0F1.MAT8_Xt","LC0F1.MAT8_Xc","LC0F1.MAT8_Yt","LC0F1.MAT8_Yc","LC0F1.MAT8_S","NULL","NULL","LC0F1.Elements","LC0F1.Parts","LC0F1.Properties","@current_pool","@current_slice_index","matrix")

The relevant XML syntax is displayed below:

<datatype bind="Elements" format="Scalar" id="_hv_eb1" inherit="result::Composite Stress" pools="Shell;Beam" title="HashinFailureMatrix" >
    <call name="HashinFailureTheory" 
    tensor="result::corners[false]::Composite Stress" 
    xc="model::subcase[0]::step[0]::corners[false]::MAT8_Xc" 
    xt="model::subcase[0]::step[0]::corners[false]::MAT8_Xt"
    yc="model::subcase[0]::step[0]::corners[false]::MAT8_Yc" 
    yt="model::subcase[0]::step[0]::corners[false]::MAT8_Yt" 
    s="model::subcase[0]::step[0]::corners[false]::MAT8_S"
    sets="NULL" 
    plies="NULL" 
    elems="model::subcase[0]::step[0]::corners[false]::Elements" 
    parts="model::subcase[0]::step[0]::corners[false]::Parts" 
    props="model::subcase[0]::step[0]::corners[false]::Properties" 
    pool_name="@current_pool" 
    layer_index="@current_slice_index" 
    opt_str="matrix" 
    answer="@datatype_value" />
</datatype>