Thermal Cycling of Thin and Thick Ply Composites
Technical Report
·
OSTI ID:402052
An experimental study was conducted to determine the effects of ply thickness in composite laminates on thermally induced cracking and changes in the coefficient of thermal expansion (CTE). After a few thermal cycles, laminates with thick-plies cracked, resulting in large changes in CTE. CTE`s of the thin-ply laminates were unaffected by microcracking during the first 500 thermal cycles, whereas, the CTE`s of the thick-ply laminates changed significantly. After about 1500 cycles, microdamage had also reduced the CTE of the thin-ply laminates to a value of about half of their initial value.
- Research Organization:
- NASA Langley Research Center, Hampton, VA (United States)
- OSTI ID:
- 402052
- Report Number(s):
- N-96-27822; NASA-TM-111552; NAS-1.15:111552; NIPS-96-55838; TRN: 9627822
- Resource Relation:
- Other Information: PBD: Jan 1994
- Country of Publication:
- United States
- Language:
- English
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