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Cheng Gengdong, Song Limin, Kang Zhan. DISPLACEMENT SENSITIVITY OF TRUSS STRUCTURES MADE OF PIECE WISE LINEAR MATERIAL[J]. Engineering Mechanics, 1998, 15(1): 1-9.
Citation: Cheng Gengdong, Song Limin, Kang Zhan. DISPLACEMENT SENSITIVITY OF TRUSS STRUCTURES MADE OF PIECE WISE LINEAR MATERIAL[J]. Engineering Mechanics, 1998, 15(1): 1-9.
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DISPLACEMENT SENSITIVITY OF TRUSS STRUCTURES MADE OF PIECE WISE LINEAR MATERIAL

  • Dalian University of Technology, Dalian 116024

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  • Received Date: October 31, 1996
  • Revised Date: December 31, 1899
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  • The present paper gives the derivation of the displacement sensitivity of truss structures made of piece wise linear material, with respect to the cross sectional areas of bars. A three-bar truss example is provided. It is shown that the displacement sensitivity at the transition point of material stiffness is discontinuous and the displacement contour of design space is rough. The sensitivity formula and iterative scheme in the optimality criterion approach developed in references are further clarified.
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