Evaluation of the Mechanical Properties of Lightweight Lattice Structures Subjected to Compressive Loading : 1st Report, Analytical Approach for the Initial Stiffness and Plastic Collapse Strength
圧縮荷重を受ける軽量Lattice構造の機械特性の評価 : 第1報,圧縮初期の剛性と塑性崩壊応力に対する理論的評価

Kuniharu USHIJIMA, Wesley James CANTWELL, Dai-Heng CHEN
2009 TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A  
In thispaper 、 a tbeDretical analysls f ・ r predlcting the mechanlcal pr 叩 erties ・f lattjce structures ullder conlpressive Ioading is proposed 、 and verified by comparing the analytical pre 〔] ictions with FEM resu 】 ts. This theo ヱ ・ y for estimating E * is based on the dassical beam theory 、 aDd the one for estimatir / g σ羨 reflects the stress state for each lattice structure . It is found that the ノコCC structure is a bending . domminat ted structure , and the BCCZ 3tructl ]re is a
more » ... ]re is a cQlnpressillg − [ lominat . ed structule , and the 乃β CC StrUCture iS a miXed lOading . dQminated ( StretChing and bending − dOmina しed )Stl1UC . ture . Also, the results obtained by this thcory ag τee well with the FEM results .
doi:10.1299/kikaia.75.572 fatcat:vmgxatkkz5ernntsvywwkm3zky