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RESIDUAL STRESS, SPRING-IN AND WARPAGE IN AUTOCLAVED COMPOSITE PARTS

size: 11pt; color: rgb(0, 0, 0);">This paper presents an overview of residual stress build-up and shape distortions in size: 11pt;">autoclaved composite laminates. It discusses the sources of stress build-up and shape distortions and size: 11pt;">presents experimental results that identify parameters that drive shape distortions. It is shown that springin is mainly driven by volume changes due to thermal and cure shrinkage effects, whereas warpage of size: 11pt;">symmetric laminates is driven by mechanical tool-part interaction, which is sensitive to variations in the size: 11pt;">process conditions.

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