Microstructure-based deep-drawing simulation of knitted fabric reinforced thermoplastic by homogenization theory

Naoki Takano, Y. Ohnishi, M. Zako, K. Nishiyabu

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Process simulation of fiber reinforced composite materials is an important research theme for the development of low-cost and advanced functional composite materials. This paper aims at the simulation of deep-drawing process of knitted fiber reinforced thermoplastics and its verification. The feature of the simulation is that the large deformation of the knitted microstructures can be traced everywhere in the deep-drawn product. The homogenization theory is applied to analyze the micro-macro coupled behaviors of the knitted fabric composite material. By employing a simplified nonlinear computational algorithm, the deep-drawing simulation was carried out on a personal computer. The predicted largely deformed microstructures were compared with the experimental results. The numerical results and experimental ones agreed quite well. This deep-drawing simulation requires us to prepare only the mechanical properties of the constituents, while it provides us all the necessary quantities such as the deformation, strain, stress and stiffness from both microscopic and macroscopic standpoints.

Original languageEnglish
Pages (from-to)6333-6356
Number of pages24
JournalInternational Journal of Solids and Structures
Volume38
Issue number36-37
DOIs
Publication statusPublished - 2001 Aug 10
Externally publishedYes

Fingerprint

deep drawing
Homogenization Theory
Deep drawing
homogenizing
Thermoplastics
Microstructure
Composite Materials
microstructure
Simulation
Functional materials
simulation
Composite materials
composite materials
Fiber reinforced materials
Personal computers
Fiber-reinforced Composite
Macros
Process Simulation
Computational Algorithm
Personal Computer

Keywords

  • Composite material
  • Deep-drawing
  • Homogenization theory
  • Knitted microstructure
  • Large deformation
  • Process simulation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Microstructure-based deep-drawing simulation of knitted fabric reinforced thermoplastic by homogenization theory. / Takano, Naoki; Ohnishi, Y.; Zako, M.; Nishiyabu, K.

In: International Journal of Solids and Structures, Vol. 38, No. 36-37, 10.08.2001, p. 6333-6356.

Research output: Contribution to journalArticle

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