Nonlinear Viscoelastic Analysis of Reticulated Spatial Truss Composed of Composite Materials

복합재료 그물형 공간 트러스의 점탄성적 비선형 해석

  • 한성천 (대원과학대학 토목과) ;
  • 장석윤 (서울시립대학교 토목공학과)
  • Received : 2001.07.14
  • Published : 2001.12.27

Abstract

The present study is concerned with the arc-length method in the investigation of the large deflection behavior of spatial structures with composite materials. This study should be able to trace the main equilibrium path by automatically varying the arc-length size of individual solution steps with the variation of the curvature of the nonlinear equilibrium path. A quasi-elastic method is used for the solution for viscoelastic analysis of the reticulated spatial structures. Elastic modulus of composite materials is defined by micro mechanical materials modeling method and nonlinear equilibrium path is traced with various load types. To demonstrate the effectiveness of the present strategies, numerical examples of reticulated spatial truss is given and compared with solutions using other methods.

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