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| What
are the common damage modes or imperfections? |
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There
are two separate defects that will affect the strength of
a composite structure.
- Imperfections or flaws from manufacturing
of the laminate or assembly of the structure
- Damage resulting during handling,
installation or in-service use
Understanding
the nature of the defect present allows both the effect of
this defect to be ascertained and, in some instances, a forensic
examination of a failed part must be carried out for adequate
failure analysis. For every composite part, there should be
acceptance/rejection criteria to be used during inspection
of the part. Damage that is acceptable will be incorporated
into the evaluation test programme.
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