Effects of temperature and moisture on the high strain rate compression response of graphite/epoxy composites

Article Abstract:

Room and high temperature tests were carried out on unidirectional graphite/epoxy laminates and both dry samples and samples subjected to moist/freeze conditioning for 42 days were tested. The effect of plasticizing or matrix becoming ductile at higher temperature was clearly evident from the dynamic stress-strain response as well as the damage modes while the effect of moisture conditioning at sub-freezing temperature was similar to that observed at high temperature of 190 degrees C.

Product information, Thermal properties, Mechanical properties, Laminated materials, Laminates, Structural dynamics

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Low velocity impact and compression-after-impact response of Z-pin reinforced core sandwich composites

Article Abstract:

Results demonstrate that the damage minimization under low velocity impact is greater when the pin cluster is closer during the compression-after-impact response of the pin-reinforced foam. Data further indicate that pin debonding and delamination of the z-pin reinforced core sandwich composites are consequences of compressive failure.

Evaluation, Materials, Dynamic testing (Materials), Composite materials, Foam, Foams (Chemistry), Sandwich construction

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Static and high strain rate compression response of thick section twill weave S-2 glass/vinyl ester composites manufactured by affordable liquid molding processes

Article Abstract:

Results demonstrate alternative cost-effective manufacturing solutions for fabricating glass/vinyl ester laminates of 20 milimeter thickness that can be used in the production of Composite Armored Vehicles.

Statistical Data Included, Research, Usage, Compressors, Machine dynamics, Armored vehicles, Fibrous composites, Fiber reinforced composites, Molding (Chemical technology), Molding

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