Analysis of tensile and shear mechanical behaviors of laminated porous structures
Based on the laminated porous tensile and shear structure,considering the effects of porosity,cell laying angle,cell pore type and composite layer number on bearing capacity and stability of structure,the tensile and shear mechanical properties and failure forms of planar porous structures were studied by experiments and finite element numerical calculations.The results show that the smaller the po-rosity,the larger the tensile and shear resistance performance of the single layer and double layers structures,and the larger the enhance-ment amplitude of the double layers model.When the cell laying angle of porous structure is 15°,the plastic deformation and tensile and shear resistance performance are better.The plastic deformation of the regular hexagonal pore type is better,and the tensile and shear re-sistance force of the square pore type is strong.The tensile and shear resitance strength can be enhanced by the multilayer structure,and the cracks of the laminated porous structure are coupled with cracks that undergo brittle fracture in the single layer model.
laminated structureporous structurePLA materialtensile and shear experiment
万方数据
维普
