Journal
COMPOSITES PART B-ENGINEERING
Volume 36, Issue 4, Pages 351-358Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2004.10.002
Keywords
polymer-matrix composites (PMCs); mechanical properties; mechanical testing; physical properties
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The vacuum thermo-cycling (-180 to + 140 degrees C, 10(-5) Pa) was performed on unidirectional M40J/AG-80 composite. The tensile strengths at 90 and 0 degrees, bend strength, interlayer shear strength, mass loss ratio and storage modulus (E), as well as the transverse and longitudinal expansion/contraction distortions, were measured after different thermal cycles. The results show that the variations in the 90 and 0 degrees tensile strengths and the longitudinal contraction distortion are closely related to the extent of interface debonding, while the changes in bend strength and transverse expansion/contraction distortion to the increase in cross-linking density in the AG-80 epoxy matrix. The mass loss ratio increases with thermal cycles and then level off after 48 cycles. (c) 2005 Elsevier Ltd. All rights reserved.
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