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Thermoelastic evaluation of composite laminates using digital imaging processing

delete2007-11-01
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PRE
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Antonio Claret Palerosi *
S
Sérgio Frascino Müller de Almeida
DOI:10.1016/j.compositesa.2006.12.004delete
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摘要

摘要

En 中文
The study of the variation of the curvature of non-symmetric composite laminates with temperature provides a measure of the magnitude of the thermal stresses and the mechanical behavior of the material with temperature. In the present work, an experimental method based on the pioneer use of a digital camera and image processing method is proposed to perform such measurements. Taking advantage of the method and by comparing experimental and CLT, extended-CLT and FEM simulation results, an evaluation of the residual stresses is described and an approach providing more precise determination of the residual thermal stresses in non-symmetric laminates is proposed. (c) 2007 Elsevier Ltd. All rights reserved.
Keyword:
thermomechanical
residual/internal stress
laminate mechanics
image processing
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期刊

Composites Part A-Applied Science and Manufacturing 封面图
Composites Part A-Applied Science and Manufacturing
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8.9
论文数:
8.8K
被引数:
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comando-geral de tecnologia aeroespacial (cta)
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instituto nacional de pesquisas espaciais (inpe)
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