ASTM Composite Materials Committee is developing flexure testing standard

Source | ADMET Inc.

ASTM International (W. Conshohocken, Pa., U.S.) is developing a proposed standard that organizations can use to design, analyze and certify composite structures in the aerospace, automotive, marine and civil engineering fields. The proposed standard (WK93387) is being developed by the structural test methods subcommittee (D30.05), ASTM D30.

According to ASTM member Adam J. Sawicki, the proposed standard practice contains procedures to modify the D7264/D7264M polymer matrix composite laminate flexure test method to permit testing of specimens containing open and filled holes.

Sawicki adds that the practical applications of WK93387 (in combination with WK93388) center on the generation of open-hole and filled-hole flexure data can be used in the design and analysis of composite structures.

“These tests are performed to complement D5766/D5766M for open-hole tension, D6484/D6484M for open-hole compression and D6742/D6742M for filled-hole tension and compression,” says Sawicki. “Notched laminate flexure tests typically exhibit higher surface strains at failure than those obtained under in-plane open-hole and filled-hole testing. This higher strain capability helps to design weight-efficient structures.”

This effort directly relates to the United Nations Sustainable Development Goal #13 on Climate Action.