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Sob 14:12, 02 Kwi 2011 |
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xduyirszliy
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Dołączył: 21 Lut 2011
Posty: 229
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Skąd: England
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| Temat postu: Truss structure, stress constraints under multipl |
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Truss structure, stress constraints under multiple loading conditions Topology Optimization
Optimization [J]. Engineering Mechanics , 2006,23 (7 ) :1 -7. [1O] Wang Jian , Cheng Gengdong . Stress constraints under multiple loading conditions under the Structural Topology Optimization _J]. Mechanical Strength , 2003,25 (1 ) :55- 57. [11] GUANHS, GRANTP, XIEYMEvolutionarystructuraloptimizationincorporationtensionandcompressionma-terials [J]. AdvancesinStructuralEngineering, 1999,2 (4) :273-288. [12 ] See Hua Rong , Jiang Jiesheng . Stress and its sensitivity based topology optimization method for progressive [J]. Mechanics , 2003,35 (5 ) :584 -591 . [13 ] Run Kai OF THEORETICAL . With a triangular truss element to establish a continuum topology optimization [J]. Huaqiao University : Natural Science, 2009,30 (2 ) :200- 203. [14] ZHOUKe-min, LIXia. Topologyoptimizationofstructuresundermultipleloadcasesusingfiber-reinforcedcorn-positematerialmodel [J]. ComputationalMechanics, 2006,38 (2) :163-170. TopologyOptimizationofTruss-LikeStructuresforMultipleLoadCasesWithStressConstraintsYANKai. ZH0UKe-ITlin (CollegeofCivilEngineering, HuaqiaoUniversity, Quanzhou362021, China) Abstract: Thedensitiesandorientationsofmembersatnodesaretakenasdesignvariables, thememberorientationsareadjustedtoaligntheprincipalstressdirections, checkerboardandmesh-dependenciesdisappearwithoutanyadditionaltechnique. AdoptingthetriangleelementstOfi11thedesignregion, thedifficultytodivideirregulardesigndomainbyrec-tangularelementsisovercome. Fiber-reinforcedorthotropiccompositeisemployedasthematerialmodeltosimulatetheconstitutiverelationoftruss-likecontinua, thetopologicaloptimumstructureissuggestedbythecontinuouslines, thesecontinuouslinesrepresenttheactua1distributionofmembersinthetrussstructuresthatitisintendedtobuild. Twoex-amplesareusedtodemonstratetherationalityandefficiencyofthepresentedmethod. Keywords: topologyoptimization; stressconstraints; multipleloadcases; triangleelement ( Editor : Qian Yun English Reviser : Fang Deping )
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