Virtual manufacturing of composite structures applying Implicit and Explicit FE techniques

Gasser F. Abdelal, Wesley Cantwell, Tony Robotham

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Virtual manufacturing of composites can yield an initial early estimation of the induced residual thermal stresses that affect component fatigue life, and deformations that affect required tolerances for assembly. Based on these estimation, the designer can make early decisions, which can help in reducing cost, regarding changes in part design or material properties. In this paper, an approach is proposed to simulate the autoclave manufacturing technique for unidirectional composites. The proposed approach consists of three modules. The first module is a Thermochemical model to estimate temperature and the degree of cure distributions in the composite part during the cure cycle. The second and third modules are stress analysis using FE-Implicit and FE-Explicit respectively. User-material subroutine will be used to model the Viscoelastic properties of the material based on micromechanical theory. Estimated deformation of the composite part can be corrected during the autoclave process by modifying the process-tool design. The deformed composite surface is sent to CATIA for design modification of the process-tool.

Original languageBritish English
Title of host publicationAdvances and Trends in Engineering Materials and their Applications - Proceedings of AES-ATEMA'2011 7th International Conference
Pages99-107
Number of pages9
StatePublished - 2011
Event7th International Conference on Advances and Trends in Engineering Materials and their Applications, AES-ATEMA'2011 - Milan, Italy
Duration: 4 Jul 20118 Jul 2011

Publication series

NameAES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications
ISSN (Print)1924-3642

Conference

Conference7th International Conference on Advances and Trends in Engineering Materials and their Applications, AES-ATEMA'2011
Country/TerritoryItaly
CityMilan
Period4/07/118/07/11

Keywords

  • Autoclave
  • Composites
  • Cure
  • Explicit
  • Finite element
  • Implicit
  • Micromechanics
  • Thermal

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