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Cure-induced deformation of ultra-thin composite laminates

Bosi, F; Schlothauer, A; Leclerc, C; Pellegrino, S; (2018) Cure-induced deformation of ultra-thin composite laminates. In: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics (AIAA): Kissimmee, Florida. Green open access

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Abstract

In fiber reinforced composite materials, the manufacturing process induces residual stresses and distortions that decrease the mechanical performance of the structure and affect its geometry, especially in thin laminates. Multi-physics simulations were performed to assess the spring-in effect in ultra-thin composite parabolic solar reflectors. For this purpose, a resin kinetic model has been developed by means of differential scanning calorimetry experiments. The kinetic relation has been implemented into the finite element software in order to correctly predict the evolution of the composite degree of cure during the manufacturing process. Specimens were produced in an autoclave and their final geometries were measured by means of a non-contact measuring system and compared with numerical predictions, showing very good agreement.

Type: Proceedings paper
Title: Cure-induced deformation of ultra-thin composite laminates
Event: 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Location: Kissimmee, Florida
Dates: 08 January 2018 - 12 January 2018
Open access status: An open access version is available from UCL Discovery
DOI: 10.2514/6.2018-2241
Publisher version: https://doi.org/10.2514/6.2018-2241
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10046493
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