Forming simulation of thermoplastic pre-impregnated textile reinforcement by finite element method

• NISHI Masato

  Engineering Technology Division, JSOL Corporation

• KABURAGI Tetsushi

  Gunma Industrial Technology Center

• KUROSE Masashi

  Department of Mechanical Engineering, Gunma National College of Technology

• HIRASHIMA Tei

  Engineering Technology Division, JSOL Corporation

• KURASHIKI Tetsusei

  Department of Management of Industry and Technology, Osaka University

Bibliographic Information

Other Title

• 有限要素法による織物強化熱可塑性樹脂のプレス成形解析

Abstract

In this paper, we propose a new FE model of a carbon fiber reinforced thermoplastic (CFRTP) in order to capture the deformation during a thermoforming process because the thermoforming process of CFRTP has increased its presence in the automotive industry for its wide applicability to the mass production car. The proposed model can describe temperature dependent non-linear bending property of CFRTP by a set of elements which consists of two shell elements with membrane elements in between them. The membrane elements represent temperature dependent anisotropic in-plane behavior by calculating stress contributions of the textile reinforcement and thermoplastic in a parallel system. By applying Reuss model to the stress calculation of thermoplastic, the in-plane shear behavior which is the key deformation mode during forming can be accurately predicted. FE model is constructed based on the results of three point bending and bias-extension experiments which are conducted in the range of the process temperature. Thermoforming simulations are presented and compared to experimental results. Simulated outline and shear angle are in good agreement with experimental results. It will be shown by sensitivity study that the effect of the temperature plays an important role in deformation during a non-isothermal forming process.

Journal

• Transactions of the JSME (in Japanese)

  Transactions of the JSME (in Japanese) 80 (820), SMM0354-SMM0354, 2014

  The Japan Society of Mechanical Engineers

Keywords

• Carbon fiber reinforced thermoplastic (CFRTP)
• Finite element method (FEM)
• In-plane shear
• Out-of-plane bending
• Textile reinforcement
• Thermoforming

Details

• CRID: 1390001205515192832
• NII Article ID: 130005004952
• DOI: 10.1299/transjsme.2014smm0354
• ISSN: 21879761
• Web Site: https://www.jstage.jst.go.jp/article/transjsme/80/820/80_2014smm0354/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed