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The Development of Expert System for Strength Evaluation of TiNi Fiber Reinforced Al Matrix Composite

TiNi/Al기 형상기억복합재료의 강도평가를 위한 전문가시스템의 개발

  • 박영철 (동아대학교 기계공학과) ;
  • 이동화 (동아대학교 대학원 기계공학과) ;
  • 박동성 (동아대학교 대학원 기계공학과)
  • Published : 2004.08.01

Abstract

In this paper, a study on the development of expert system for Al matrix composite with shape memory alloy fiber is performed to evaluate termomechanical behavior and mechanical properties. Expert system is very useful computer-based analysis system designed to make analysis technique and knowledge conveniently available to a lot of fabricable condition. In the developed system, it is possible to predict termomechanical behavior and mechanical properties for other composite with shape memory alloy fiber. The smartness of the shape memory alloy is given due to the shape memory effect of the TiNi fiber which generates compressive residual stress in the matrix material when heated after being prestrained. For finite element analysis, an analytical model is assumed two dimensional axisymmetric model compared of one fiber and the matrix. To evaluate the strength of composite using FEM, the concept of smart composite was simulated on computer Thus, in this paper, the FEA was carried out at two critical temperature conditions; room temperature and high temperature(363k). The finite element analysis result was compared with the test result for the analysis validity.

Keywords

Expert System;Finite Element Analysis;Shape Memory Alloy (SMA);Shape Memory Effect(SME);Smart Composite;Volume Fraction

References

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