Composite failure vs failure index
Hello,
I have some doubts about composite failure and composite index, relatively to the composite analysis postprocessing. As far as i think, composite failure is a number which should be compared to one according to the composite resistance theories (Tsai-Wu, Hoffman ecc).
But then what does 'failure index' mean? And what 'Plies with Maximum FI'? Which is the relationship between th failure index and the composite failure?
Thank you
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Hi Fede54,
When you are looking at composite failure you can see the Bond failure indices. So composite failure gives an insight of micro level results for the structure.
Where as Failure index is what deals with macro level results (individual ply failure index).