Micromechanics-based simulation for the fracture of composite materials with cohesive/volumetric finite-element schemes

M. Nishikawa, T. Okabe, N. Takeda

研究成果: Conference contribution

抄録

The understanding of meso-scale fracture behavior of fiber-reinforced composite materials (such as initiation, coalescence and accumulation of microscopic damage) is important for evaluating the macroscopic strength or toughness. Thus the present study proposes a micromechanics-based simulation for the fracture of composite materials with cohesive/volumetric finite-element schemes. The present simulation handles the multiple, interacting damage mechanisms involved in the damage process of composites, including interacting fiber breaks, matrix plasticity and cracking, and interfacial debonding. First the modeling for the microscopic damage is validated and calibrated by simulating the microscopic damage in single-fiber composite (SFC) tests. The present simulation well reproduces the microscopic damage and fragmentation process in SFC tests. Based on the calibrated micromechanical model, we simulate the meso-scale fracture of short-fiber reinforced polymer-matrix composites, and discuss the effect of constitutive structure of composites on damage initiation and coalescence.

本文言語English
ホスト出版物のタイトルAmerican Society for Composites - 22nd Technical Conference of the American Society for Composites 2007 - Composites
ホスト出版物のサブタイトルEnabling a New Era in Civil Aviation
ページ39-58
ページ数20
出版ステータスPublished - 2007
イベント22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation - Seattle, WA, United States
継続期間: 2007 9月 172007 9月 19

出版物シリーズ

名前American Society for Composites - 22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation
1

Other

Other22nd Technical Conference of the American Society for Composites 2007 - Composites: Enabling a New Era in Civil Aviation
国/地域United States
CitySeattle, WA
Period07/9/1707/9/19

ASJC Scopus subject areas

  • セラミックおよび複合材料

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