Defect sensitivity of a 3D truss material

被引:81
作者
Wallach, JC [1 ]
Gibson, LJ [1 ]
机构
[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA
关键词
cellular materials; defects; mechanical properties;
D O I
10.1016/S1359-6462(01)01073-9
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effect of randomly removing members of a three-dimensional truss material on the Young's modulus and compressive strength has been calculated numerically. The results indicate that this structure is more tolerant to this type of defect than open-cell foams. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:639 / 644
页数:6
相关论文
共 10 条
[1]   Compressive and tensile behaviour of aluminum foams [J].
Andrews, E ;
Sanders, W ;
Gibson, LJ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 270 (02) :113-124
[2]   Compressive deformation and yielding mechanisms in cellular Al alloys determined using X-ray tomography and surface strain mapping [J].
Bart-Smith, H ;
Bastawros, AF ;
Mumm, DR ;
Evans, AG ;
Sypeck, DJ ;
Wadley, HNG .
ACTA MATERIALIA, 1998, 46 (10) :3583-3592
[3]   Fabrication and mechanical performance of a mesoscale space-filling truss system [J].
Brittain, ST ;
Sugimura, Y ;
Schueller, OJA ;
Evans, AG ;
Whitesides, GM .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2001, 10 (01) :113-120
[4]  
DESHPANDE VS, 2001, IN PRESS J MECH PHYS
[5]   Influence of wavy imperfections in cell walls on elastic stiffness of cellular solids [J].
Grenestedt, JL .
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1998, 46 (01) :29-50
[6]  
GUO XE, 1999, ASME BED, V42, P327
[7]   The effects of non-periodic microstructure and defects on the compressive strength of two-dimensional cellular solids [J].
Silva, MJ ;
Gibson, LJ .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 1997, 39 (05) :549-563
[8]   The effects of cell face curvature and corrugations on the stiffness and strength of metallic foams [J].
Simone, AE ;
Gibson, LJ .
ACTA MATERIALIA, 1998, 46 (11) :3929-3935
[9]   A cellular solid model for modulus reduction due to resorption of trabeculae in bone [J].
Vajjhala, S ;
Kraynik, AM ;
Gibson, LJ .
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 2000, 122 (05) :511-515
[10]  
WALLACH JC, 2001, IN PRESS INT J SOLID