Hou, Xiaonan and Acar, Memis and Silberschmidt, Vadim (2011) Non-uniformity of deformation in low-density thermally point bonded non-woven material : effect of microstructure. Journal of Materials Science, 46 (2). 307–315. ISSN 0022-2461
Full text not available from this repository.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.