Low velocity impact simulation of CFRP laminates considering microscopic damage interaction

Masaya Ebina, Akinori Yoshimura, Yuichiro Aoki, Kenichi Sakaue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study is intended to be the basis for developing more advanced strategy of finite element (FE) modeling for low velocity impact (LVI) simulation. In this study, the induction of delamination by matrix crack was numerically observed by microscopic analysis of a representative unit cell (RUC) model. The RUC model implements intralaminar and interlaminar cohesive elements for describing matrix crack and delamination, respectively. The induction under various situations were appropriately observed by localization analyses; implement periodic boundary conditions on the RUC model, and apply macroscopic strain and curvature predicted by LVI simulation. Periodic boundary conditions were formulated based on the “key degrees of freedom” method in order to apply macroscopic quantities to the RUC model efficiently. Intralaminar cohesive elements were degraded for reproducing matrix crack in the LVI simulation prior to the localization analysis. Matrix crack and delamination predicted by the analyses were qualitatively in good agreement with those in the impacted specimen observed by X-ray CT. Therefore, it can be expected that the interaction between matrix crack and delamination will be derived numerically.

Original languageEnglish
Title of host publication33rd Technical Conference of the American Society for Composites 2018
PublisherDEStech Publications Inc.
Pages12-28
Number of pages17
Volume1
ISBN (Electronic)9781510872073
Publication statusPublished - 2018 Jan 1
Event33rd Technical Conference of the American Society for Composites 2018 - Seattle, United States
Duration: 2018 Sep 242018 Sep 27

Other

Other33rd Technical Conference of the American Society for Composites 2018
CountryUnited States
CitySeattle
Period18/9/2418/9/27

Fingerprint

Carbon fiber reinforced plastics
Laminates
Delamination
Cracks
Boundary conditions
carbon fiber reinforced plastic
X rays

ASJC Scopus subject areas

  • Mechanics of Materials
  • Surfaces, Coatings and Films
  • Metals and Alloys

Cite this

Ebina, M., Yoshimura, A., Aoki, Y., & Sakaue, K. (2018). Low velocity impact simulation of CFRP laminates considering microscopic damage interaction. In 33rd Technical Conference of the American Society for Composites 2018 (Vol. 1, pp. 12-28). DEStech Publications Inc..

Low velocity impact simulation of CFRP laminates considering microscopic damage interaction. / Ebina, Masaya; Yoshimura, Akinori; Aoki, Yuichiro; Sakaue, Kenichi.

33rd Technical Conference of the American Society for Composites 2018. Vol. 1 DEStech Publications Inc., 2018. p. 12-28.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ebina, M, Yoshimura, A, Aoki, Y & Sakaue, K 2018, Low velocity impact simulation of CFRP laminates considering microscopic damage interaction. in 33rd Technical Conference of the American Society for Composites 2018. vol. 1, DEStech Publications Inc., pp. 12-28, 33rd Technical Conference of the American Society for Composites 2018, Seattle, United States, 18/9/24.
Ebina M, Yoshimura A, Aoki Y, Sakaue K. Low velocity impact simulation of CFRP laminates considering microscopic damage interaction. In 33rd Technical Conference of the American Society for Composites 2018. Vol. 1. DEStech Publications Inc. 2018. p. 12-28
Ebina, Masaya ; Yoshimura, Akinori ; Aoki, Yuichiro ; Sakaue, Kenichi. / Low velocity impact simulation of CFRP laminates considering microscopic damage interaction. 33rd Technical Conference of the American Society for Composites 2018. Vol. 1 DEStech Publications Inc., 2018. pp. 12-28
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