VALIDATING SIMULATED RESIDUAL STRAINS DUE TO THERMOFORMING USING FBGS

Paulitsch Michael, Maximilian Pollak, Christoph Zanghellini, Johannes Jungbauer, Franz Maier, Roland Hinterhölzl

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

Abstract

Accurately determining process induced residual strains in carbon fiber reinforced plastic (CFRP) and CFRP-metal hybrids is vital for understanding the behavior of manufactured components and to validate simulations of process induced deformations. The required local strain measurements for this task can be obtained with Fiber Bragg Gratings (FBGs), embedded between CFRP layers. The required strain and temperature calibrations is carried out in a tensile testing machine. FBGs were used to monitor the manufacturing process of CFRP and hybrid plates in a thermoforming station until demolding. Good agreement in terms of strain results and visibility of major effects such as crystallization behavior between measurement data and process simulation results has been achieved.

Original languageEnglish
Title of host publicationLife Cycle Assessment
EditorsAnastasios P. Vassilopoulos, Veronique Michaud
PublisherComposite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
Pages155-161
Number of pages7
ISBN (Electronic)9782970161400
Publication statusPublished - 2022
Event20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland
Duration: 26 Jun 202230 Jun 2022

Publication series

NameECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Volume6

Conference

Conference20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Country/TerritorySwitzerland
CityLausanne
Period26.06.202230.06.2022

Keywords

  • FBG
  • FRP-metal hybrid
  • Process simulation
  • Residual stresses
  • Thermoforming

Fingerprint

Dive into the research topics of 'VALIDATING SIMULATED RESIDUAL STRAINS DUE TO THERMOFORMING USING FBGS'. Together they form a unique fingerprint.

Cite this