Numerical analysis of dynamic out-of-plane loading of nonwovens

International Symposium on Dynamic Deformation and Fracture of Advanced Materials 2013

物理学;材料科学

Demirci, E.^1 ; Farukh, F.^1 ; Acar, M.^1 ; Pourdeyhimi, B.^2 ; Silberschmidt, V.V.^1

Wolfson School of Mechanical and Manufacturing Engineering, Loughborough University, United Kingdom^1

Nonwovens Cooperative Research Center, North Carolina State University, Raleigh, NC, United States^2

关键词: Deformation behaviour;    Dynamic loadings;    Elastic-Plastic;    Mechanical behaviour;    Out-of-plane loading;    Sheath materials;    Viscous properties;    Visual techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/451/1/012021/pdf
DOI  :  10.1088/1742-6596/451/1/012021

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper presents finite element (FE) modelling of deformation behaviour of thermally bonded bicomponent fibre nonwovens under out-of-plane dynamic loading. Nonwoven fabric was treated as an assembly of two regions with distinct mechanical properties. Bond points were treated as composite material having a matrix of the sheath material reinforced with fibres of the core material. Elastic-plastic and viscous properties of the constituent fibres, obtained with tensile and relaxation tests were implemented into the FE model. The mechanical behaviour of the material under out-of-plane dynamic loading was observed with visual techniques. The deformation behaviour of nonwoven under out-of-plane dynamic loading computed with the numerical model was compared with that observed in the tests.