Analytical and finite element solutions for spring-in of curved composites

M. R. Wisnom*, N. Ersoy

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

An analytical approach and a finite element approach for modelling spring-in are presented. The analytical approach takes into account the low shear stiffness of the material in the rubbery state before it is fully cured. The finite element modelling is based on a two-step analysis considering the material as passing through distinct rubbery and glassy states. It is shown that shear-lag through the thickness can lead to a significant effect of thickness on spring-in angle, as has also been observed experimentally.

Original languageEnglish
Title of host publicationAmerican Society for Composites - 22nd Technical Conference of the American Society for Composites 2007 - Composites
Subtitle of host publicationEnabling a New Era in Civil Aviation
PublisherDEStech Publications, Inc.
Pages334-345
Number of pages12
ISBN (Print)9781604239669
Publication statusPublished - 2007
Event22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation - Seattle, WA, United States
Duration: 17 Sept 200719 Sept 2007

Publication series

NameAmerican Society for Composites - 22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation
Volume1

Conference

Conference22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation
Country/TerritoryUnited States
CitySeattle, WA
Period17/09/0719/09/07

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