Results of an experimental and analytical evaluation of damage progression in three stitched composite plates containing an angled central notch and subjected to compression loading are presented. Parametric studies were conducted s)'stematicall) to identify the relative effects of the material strength parameters on damage initiation and growth.Comparisons with experiments were conducted to determine the appropriate in situ values of strengths for progressive failure analysis. These parametric studies indicated that the in situ value of the fiber buckling strength is the most important parameter in the prediction of damage initiation and growth in these notched composite plates. Analyses of the damage progression in the notchcd, compression-loaded plates were conducted using in situ material strengths.('omparisons of results obtained from these analyses with experimental results for displacements and axial strains show good agreement,
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