ASTM D7137 / D713

 ASTM D7137 / D713

 

ASTM D7137/D7137M provides the standardized methodology for measuring the residual compressive strength of composite plates following controlled impact exposure, generating the compression-after-impact (CAI) data essential for structural damage tolerance assessment. Presto Stantest's compression testing machines deliver the precise, stable load application that ASTM D7137/D7137M-compliant composite evaluation demands.

Significance

Compression-after-impact strength is one of the most critical design-driving properties in damage-tolerant composite structural design. ASTM D7137/D7137M enables aerospace, automotive, and defense manufacturers to quantify how significantly impact events degrade structural compression performance, supporting material selection, design allowable development, manufacturing process validation, and regulatory certification programs where damage tolerance demonstration is mandatory.

Scope

ASTM D7137/D7137M covers uniaxial compressive strength testing of multidirectional polymer matrix composite plates previously subjected to quasi-static indentation or drop-weight impact per ASTM D7136. Specimens are supported along all four edges and loaded to compressive failure, with residual strength, failure mode, and damage area all recorded and reported.