Full-field fabric stress mapping by micro Raman spectroscopy in a yarn push-out test

Lei Z. K.; Qin F. Y.; Fang Q. C.; Bai R. X.; Qiu W.; Chen X.

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Full-field fabric stress mapping by micro Raman spectroscopy in a yarn push-out test

机译：通过微拉曼光谱在纱线推出测试中的全场织物应力映射

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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. (c) 2018 Optical Society of America

机译：通过微型纱线推出测试使用微拉曼光谱（MRS）映射二维简单织物的全场应力分布，模拟对织物的准静态射弹撞击。使用数字图像相关方法在单纱拉伸试验中建立单个纱线的应力应变关系。使用MRS在单纱拉伸试验中建立拉曼峰值和芳纶kevlar 49纱应力之间的关系。在芳族聚酰胺kevlar 49平原织物上进行平面外负载测试，使用MRS测量纱线应力。从全场织物应力分布，可以观察到具有高纱线应力的交叉形状; 在射弹冲击期间，该结果将有助于进一步研究织物的负载转移。（c）2018年光学学会

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《Applied optics》 |2018年第4期|共7页
作者
Lei Z. K.; Qin F. Y.; Fang Q. C.; Bai R. X.; Qiu W.; Chen X.;
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Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

Tianjin Univ Dept Mech Tianjin 300072 Peoples R China;

Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

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Full-field fabric stress mapping by micro Raman spectroscopy in a yarn push-out test

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