Adjustment of residual stresses in unsymmetric fiber-reinforced composites using genetic algorithms
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
During the manufacturing process of multilayered fiber-reinforced composites with variable fiber orientations, residual stresses build up in these composites due to the directional expansion of single unidirectionally reinforced layers. Depending on the laminate lay-up, the inhomogeneous residual stresses, which are caused by thermal effects, moisture absorption, and chemical shrinkage, can lead to large multistable out-of-plane deformations. Instead of avoiding these curvatures, they can be advantageously used for technical applications following the near-net-shape technology. In order to adjust the deformations to the technical requirements, genetic algorithms in combination with a nonlinear calculation method have been developed, which can purposefully adapt the laminate lay-up depending on the loading and process parameters.
Details
Original language | English |
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Pages (from-to) | 71-78 |
Number of pages | 8 |
Journal | Mechanics of Composite Materials |
Volume | 37 |
Issue number | 1 |
Publication status | Published - Jan 2001 |
Peer-reviewed | Yes |
External IDs
Scopus | 0035548661 |
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Scopus | 0035535067 |
ORCID | /0000-0003-1370-064X/work/142243407 |
Keywords
Keywords
- Fiber-reinforced composite, Genetic algorithm, Residual stresses, Unsymmetric lay-up