Finite Element Analysis and Validation of Cellular Structures

Abstract Additive manufacturing has opened doors to many new technological developments that could not be realised with traditional manufacturing methods. One of these research areas includes the development and utilisation of Cellular Structures in everyday objects. The application of cellular structures theoretically should decrease the required amount of material for production at the cost of overall rigidity and resistance to stresses. This article presents a validation of Finite Element Analysis (FEA) simulations of Cellular Structures with empirical data obtained from compression tests. Parametrised cells with two different materials are evaluated through FEA simulations against selective laser sintered specimens. The cellular structure are modelled with implicit modelling method.

[1]  Neil Hopkinson,et al.  Experimental measurement and finite element modelling of the compressive properties of laser sintered Nylon-12 , 2006 .

[2]  Supachai Vongbunyong,et al.  Rapid generation of uniform cellular structure by using prefabricated unit cells , 2017, Int. J. Comput. Integr. Manuf..

[3]  Claus Emmelmann,et al.  Rapid manufacturing of lattice structures with selective laser melting , 2006, SPIE LASE.

[4]  Ahmed Hussein,et al.  Design and additive manufacturing of cellular lattice structures , 2011 .

[5]  L. C. Brinson,et al.  Finite element modeling of porous titanium , 2007, International Journal of Solids and Structures.

[6]  Dan Li,et al.  Biomimetic superelastic graphene-based cellular monoliths , 2012, Nature Communications.

[7]  Paolo Colombo,et al.  Cellular Ceramics: Structure, Manufacturing, Properties and Applications , 2005 .

[8]  Alexander A. Pasko,et al.  Procedural Function-Based Spatial Microstructures , 2010, 2010 Shape Modeling International Conference.

[9]  M. Shellabear,et al.  DMLS - DEVELOPMENT HISTORY AND STATE OF THE ART , 2004 .

[10]  David W. Rosen,et al.  A HYBRID GEOMETRIC MODELING METHOD FOR LARGE SCALE CONFORMAL CELLULAR STRUCTURES , 2005 .

[11]  L. Froyen,et al.  Selective laser melting of iron-based powder , 2004 .

[12]  Supachai Vongbunyong,et al.  Selective Volume Fusing Method for Cellular Structure Integration , 2017 .

[13]  R. Everson,et al.  Advanced lattice support structures for metal additive manufacturing , 2013 .

[14]  Christopher J. Sutcliffe,et al.  Rapid design and manufacture of ultra light cellular materials , 2005 .

[15]  Ahmed Hussein,et al.  Evaluations of cellular lattice structures manufactured using selective laser melting , 2012 .

[16]  David C. Dunand,et al.  Numerical modeling of pore size and distribution in foamed titanium , 2006 .