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Cure-induced deformation of ultra-thin composite laminates

Bosia, Federico and Schlothauer, Arthur and Leclerc, Christophe and Pellegrino, Sergio (2018) Cure-induced deformation of ultra-thin composite laminates. In: AIAA Scitech 2018 Forum. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2018-2241. ISBN 978-1-62410-532-6.

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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.

Item Type:Book Section
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URLURL TypeDescription
Bosia, Federico0000-0002-2886-4519
Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2018 American Institute of Aeronautics and Astronautics. Financial support from the Northrop Grumman Corporation is gratefully acknowledged. DSC experiments were performed in the Kornfield Lab at the California Institute of Technology: we thank Dr. T. Di Luccio and Mr. K. Ramachandran for helpful comments and discussions. The manufacturing and measurements of composite laminates were carried out at the Space Structure Laboratory at the California Institute of Technology. Numerical simulations were performed using COMPRO simulation software package for Abaqus, developed by Convergent Manufacturing Technologies.
Group:GALCIT, Space Solar Power Project
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Northrop Grumman CorporationUNSPECIFIED
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AIAA Paper2018-2241
Record Number:CaltechAUTHORS:20190806-133219697
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Official Citation:Cure-induced deformation of ultra-thin composite laminates Federico Bosi, Arthur Schlothauer, Christophe Leclerc, and Sergio Pellegrino 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. doi: 10.2514/6.2018-2241
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97675
Deposited By: Tony Diaz
Deposited On:07 Aug 2019 17:28
Last Modified:01 Jun 2023 23:51

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