Publication Date:
2019-07-13
Description:
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.
Keywords:
Composite Materials
Type:
NASA-TM-111552
,
NAS 1.15:111552
,
Engineering, Construction, and Operations in SPACE IV; Feb 26, 1994 - Mar 03, 1994; Albuquerque, NM; United States
Format:
application/pdf
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