UNSPECIFIED (2000) High strain rate characterisation of a glass/epoxy composite. JOURNAL OF COMPOSITES TECHNOLOGY & RESEARCH, 22 (1). pp. 3-11. ISSN 0884-6804

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Abstract

High strain rate characterization of polymer composite materials has been limited due to difficulties in the measuring equipment. In particular, jigs and fixtures can be subject to inertial disturbances present at speeds up to and above 2 m/s. These disturbances are due to the phenomena of mechanical resonance and control problems that the test equipment acquires at high speeds. The amplitudes of the resulting oscillations increase with test speed and change the test sample response, making results difficult to analyze. These inertial problems may be avoided if the extrapolation of low to high strain data is applicable. Tests were performed measuring material properties at increasing rates of strain. These properties included the Young's modulus, tensile and shear strengths, and the shear modulus of a glass-epoxy composite. The results show that the effect of the logarithm of the rate of strain on the material properties can be regarded as linear and extrapolated to provide the data at high strain rates.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) Q Science > QD Chemistry
Journal or Publication Title:	JOURNAL OF COMPOSITES TECHNOLOGY & RESEARCH
Publisher:	AMER SOC TESTING MATERIALS
ISSN:	0884-6804
Date:	January 2000
Volume:	22
Number:	1
Number of Pages:	9
Page Range:	pp. 3-11
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/13718

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