Abstract

The full-field stress distribution of a two-dimensional plain fabric was mapped using micro Raman spectroscopy (MRS) through a novel yarn push-out test, simulating a quasi-static projectile impact on the fabric. The stress–strain relationship for a single yarn was established using a digital image correlation method in a single-yarn tensile test. The relationship between Raman peak shift and aramid Kevlar 49 yarn stress was established using MRS in a single-yarn tensile test. An out-of-plane loading test was conducted on an aramid Kevlar 49 plain fabric, and the yarn stress was measured using MRS. From the full-field fabric stress distribution, it can be observed that there is a cross-shaped distribution of high yarn stress; this result would be helpful in further studies on load transfer on a fabric during a projectile impact.

© 2018 Optical Society of America

Computer vision for yarn microtension measurement

Qing Wang, Changhou Lu, Ran Huang, Wei Pan, and Xueyong Li
Appl. Opt. 55(9) 2393-2398 (2016)

Depth recovery of hairy fibers for precise yarn hairiness measurement

Jingan Wang, Bugao Xu, Zhongjian Li, Weidong Gao, and Lei Wang
Appl. Opt. 57(24) 7021-7029 (2018)

Quantitative visualisation of the continuous whole-field stress evolution in complex pore structures using photoelastic testing and 3D printing methods

Yang Ju, Zhangyu Ren, Lingtao Mao, and Fu-Pen Chiang
Opt. Express 26(5) 6182-6201 (2018)

Automatic inspection of density in yarn-dyed fabrics by utilizing fabric light transmittance and Fourier analysis

Jie Zhang, Ruru Pan, and Weidong Gao
Appl. Opt. 54(4) 966-972 (2015)

Effect of bubbles on measurement accuracy of digital image correlation for a stress corrosion test

Xiaochuan Zhang
Appl. Opt. 58(25) 6873-6881 (2019)