论文信息 - Mechanical tests for foldcore base material properties

Mechanical tests for foldcore base material properties

Foldcore is an origami-like structural sandwich core which is manufactured by folding a planar base material into a three-dimensional structure. The manufacturing technology is open to a variety of base materials and also a range of unit cell geometries is feasible. FE-simulation is used to support mechanical testing of foldcores. Required input data for FE-simulation is a material model of the base material. So a test programme for aramid paper, the actual standard base material for foldcore production, is developed. A material model is extracted from test data and implemented in commercial FE-codes.

[1] Hermann Seibert,et al. Applications for PMI foams in aerospace sandwich structures , 2006 .

[2] Alastair Johnson,et al. Experimental and Numerical Analysis of Composite Folded Sandwich Core Structures Under Compression , 2007 .

[3] Anoop Chawla,et al. Prediction of crushing behaviour of honeycomb structures , 2003 .

[4] Alastair Johnson,et al. Numerical modelling of honeycomb core crush behaviour , 2008 .

[5] T N Bitzer,et al. Honeycomb Technology: Materials, Design, Manufacturing, Applications and Testing , 1997 .

[6] Alastair Johnson,et al. Modelling impact damage in composite structural elements , 2005 .

[7] B. Castanié,et al. Experimental Analysis and Modeling of the Crushing of Honeycomb Cores , 2005 .

[8] D. Kohlgrüber. Validation of a fabric model for crash simulations of composite structures , 2003 .

[9] K.H.J. Buschow,et al. Encyclopedia of Materials: Science and Technology , 2004 .

[10] Gin Boay Chai,et al. Mechanical properties of Nomex material and Nomex honeycomb structure , 2007 .

[11] Ole Thybo Thomsen,et al. Sandwich Structures 7: Advancing with Sandwich Structures and Materials. Proceedings of the 7th International Conference on Sandwich structures, Aalborg University, Aalborg, Denmark, 29-31 August 2005 , 2005 .