Abstract
One of the most important characteristic features of a low-density thermally bonded non-woven material is its discontinuous and non-uniform microstructure, resulting in a complicated and unstable deformation mechanism of the material. In order to estimate the effects of such microstructure on the overall mechanical properties of the non-woven material, tensile tests are carried out for specimens with different systems of marks for both two principle directions—machine direction and cross direction—with images being captured with high-speed camera. The non-uniform strain fields are analysed based on the obtained images. Discontinuous finite-element models are developed to study the deformation mechanism of non-woven specimens in both principle directions, and the effects of the discontinuous and non-uniform fibrous network and different arrangements of bond points are analysed numerically.
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We greatly acknowledge the support by the Nonwovens Cooperative Research Center of North Carolina State University, Raleigh, USA.
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Hou, X., Acar, M. & Silberschmidt, V.V. Non-uniformity of deformation in low-density thermally point bonded non-woven material: effect of microstructure. J Mater Sci 46, 307–315 (2011). https://doi.org/10.1007/s10853-010-4800-1
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DOI: https://doi.org/10.1007/s10853-010-4800-1