Low temperature characterization of carbon epoxy composites: an application of resonant ultrasound spectroscopy

Whitney, Timothy M.; Green, Robert E.

doi:10.1016/0041-624x(96)81782-3

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Vibrational Test Methods1

Introduction1

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1999

2011

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“…Resonant ultrasound spectroscopy is the study of spectra obtained by forced mechanical resonance of samples using swept frequency excitation [14]. It was re"ned at Los Alamos National Laboratories to determine the elastic constant of an object from its resonance spectrum [15].…”

Section: Vibrational Test Methodsmentioning

confidence: 99%

Delamination Detection in Composite Laminates From Variations of Their Modal Characteristics

DIAZ VALDES,

SOUTIS

1999

Journal of Sound and Vibration

114

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Section: Vibrational Test Methodsmentioning

confidence: 99%

Delamination Detection in Composite Laminates From Variations of Their Modal Characteristics

DIAZ VALDES,

SOUTIS

1999

Journal of Sound and Vibration

114

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“…The result showed that the Mode I interlaminar fracture toughness increases between room temperature (298K) and liquid nitrogen temperature (77K) [5]. Horiguchi also discussed the cryogenic Mode II interlaminar fracture behavior, and showed that the temperature dependence of Mode II interlaminar fracture toughness is similar to the case under Mode I [6].…”

Section: Introductionmentioning

confidence: 99%

Cryogenic Interlaminar Properties of PBO Fiber/Epoxy Composites

Zhang

Luan

Qian

et al. 2011

AMR

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The influences of low temperature on the interlaminar properties for PBO fiber/epoxy composites have been studied at liquid nitrogen temperature (77 K) in terms of three point bending test. Results showed that the interlaminar shear strength at 77 K were significantly higher than those at room temperature (RT). For the analysis of the test results, the tensile behaviors of epoxy resin at both room temperature and liquid nitrogen temperature were investigated. The interface between fiber and matrix was observed using SEM images.

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Low temperature characterization of carbon epoxy composites: an application of resonant ultrasound spectroscopy

Cited by 2 publications

References 2 publications

Delamination Detection in Composite Laminates From Variations of Their Modal Characteristics

Delamination Detection in Composite Laminates From Variations of Their Modal Characteristics

Cryogenic Interlaminar Properties of PBO Fiber/Epoxy Composites

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