Abstract
A better understanding of the mechanical properties of prepreg in the uncured state is
required to establish process models for automated layup of thermoset prepregs. Such models
would enable control of the bulk factor and defects, such as fibre waviness and voidage, during
layup. Pressure application time and temperature during automated layup are typically low while
the through-thickness strains can be high due to a reduction of gaps between the plies. A viscoelastic
analysis for the through-thickness compression response of a toughened carbon/epoxy
prepreg is compared against an elastic–plastic material behaviour with respect to automated
layup for three representative temperatures. It is shown that a simple plastic material law with
strain hardening can be used to accurately model the material response during automated layup
of toughened epoxy prepreg. A finite-element model shows good agreement with experimental
results.
Translated title of the contribution | Through-thickness compression response of uncured prepreg during manufacture by automated layup |
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Original language | English |
Pages (from-to) | 193-202 |
Journal | Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture |
Volume | 226 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2011 |
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Dive into the research topics of 'Through-thickness compression response of uncured prepreg during manufacture by automated layup'. Together they form a unique fingerprint.Prizes
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The Joseph Whitworth Prize best paper prize of the Manufacturing Industries Division of the Institution of Mechanical Engineers
Potter, K. D. (Recipient), 2012
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