subject
Toughness
Toughness: explore 1 source-linked works published from 2026 to 2026, with original documents and citations.
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Sources: nasa. Collection updated 2026-09-14. Counts describe this index, not the complete source archives.
NASA NTRS2026
The present study investigates the mixed mode interlaminar fracture toughness of six polymer matrix composite materials at both room temperature and cryogenic liquid nitrogen temperature. The single leg bending test employed gives a mix of Mode I (opening) and Mode II (in-plane shearing) cracking. The tested thermoplastic-matrix composites were shown to have total mixed mode toughnesses 3.1–4.3 times higher than those of representative thermoset resin composites.
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