A Method for Calculating Process-Induced Stresses to Prevent Warping of Products of Composite Materials

The problem of residual stresses that arise during the curing of products of polymer composite materials and cause warping (warpage) is considered. A calculation model is proposed that allows for the prediction of residual strains and design of predictive molding tools. The approach developed ensure...

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Bibliographic Details
Published in:Journal of machinery manufacture and reliability 2021-03, Vol.50 (2), p.133-142
Main Authors: Shabalin, L. P., Puzyretskii, E. A., Sidorov, I. N., Girfanov, A. M.
Format: Article
Language:English
Subjects:
Composite materials
Engineering
Machines
Manufacturing
Model accuracy
Molding (process)
Polymer matrix composites
Polymers
Predictions
Processes
Reliability
Residual stress
Strength
Warpage
Warping
Wear Resistance of Machines and Structures
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Description
Summary:The problem of residual stresses that arise during the curing of products of polymer composite materials and cause warping (warpage) is considered. A calculation model is proposed that allows for the prediction of residual strains and design of predictive molding tools. The approach developed ensures a high accuracy of manufacturing articles of polymer composite materials. The influence of the model parameters on the accuracy of the results has been analyzed.
ISSN:1052-6188
1934-9394
DOI:10.3103/S1052618821020126