논문 상세보기

복합재료 거동특성의 파괴해석Ⅰ- 이방성 소성 적합모델 KCI 등재

A Progressive Failure Analysis Procedure for Composite LaminatesⅠ - Anisotropic Plastic Constitutive Model

  • 언어ENG
  • URLhttps://db.koreascholar.com/Article/Detail/312560
구독 기관 인증 시 무료 이용이 가능합니다. 4,000원
복합신소재구조학회 논문집 (Journal of the Korean Society for Advanced Composite Structures)
한국복합신소재구조학회 (Korean Society for Advanced Composite Structures)
초록

A progressive failure analysis procedure for composite laminates is developed in here and in the companion paper. An anisotropic plastic constitutive model for fiber-reinforced composite material, is developed, which is simple and efficient to be implemented into computer program for a predictive analysis procedure of composites. In current development of the constitutive model, an incremental elastic-plastic constitutive model is adopted to represent progressively the nonlinear material behavior of composite materials until a material failure is predicted. An anisotropic initial yield criterion is established that includes the effects of different yield strengths in each material direction, and between tension and compression. Anisotropic work-hardening model and subsequent yield surface are developed to describe material behavior beyond the initial yield under the general loading condition. The current model is implemented into a computer code, which is Predictive Analysis for Composite Structures (PACS), and is presented in the companion paper. The accuracy and efficiency of the anisotropic plastic constitutive model are verified by solving a number of various fiber-reinforced composite laminates with and without geometric discontinuity. The comparisons of the numerical results to the experimental and other numerical results available in the literature indicate the validity and efficiency of the developed model.

목차
1. INTRODUCTION
2. Constitutive Modeling of Composite Materials
3. NUMERICAL ILLUSTRATIVE EXAMPLES
6. CONCLUSIONS
References
저자
  • Yi, Gyu-Sei(Professor, Department of Civil Engineering, Sun Moon University) | 이규세 Corresponding author