Study on Tear Properties of Triaxial Weave Fabric Composites

doi:10.19491/j.issn.1001-9278.2021.01.009

Abstract

Abstract:

This paper reported an investigation on the tearing performance of triaxial woven fabric and its reinforced rubber composites. The study was aimed at two cases， including the pre-incision along the yarn direction and the pre-incision along any two groups of yarn angle bisectors. A comparative investigation was also carried out with the plain weave fabric reinforced rubber composites. The variation laws in the tearing load and tearing damage characteristics of the specimens were analyzed. The results indicated that the tearing process of the triaxial woven fabric and its reinforced rubber composites could be divided into three stages： the initial stage， the pre?notch opening stage and rip expansion stage， which were related to low modulus area， high modulus area and shock area， respectively. When the pre-cut was parallel to the yarn， the triaxial woven fabric and its reinforced rubber composite exhibited a higher tear load and tear initiation position. Compared to plain weave fabrics， the triaxial woven fabric and its reinforced rubber composites showed a much smaller difference in the tear load along the two pre?cuts.

Key words: triaxial weave fabric, rubber composite, trapezoidal-tear

CLC Number:

TQ 321.2

ZHOU Hongtao, QIAN Kun, DONG Shuo. Study on Tear Properties of Triaxial Weave Fabric Composites[J]. China Plastics, 2021, 35(1): 54-59.

Figures/Tables 15

Fig.1. Fabric pictures

织物结构	经纱1/根?（10 cm）^-1	经纱2/根?（10 cm）^-1	纬纱/根?（10 cm）^-1	织物密度/g?m^-2	织物厚度/mm	覆盖系数/%
平面三向织物	33	33	33	194.04	0.43	62.57
平纹织物	51		51	199.90	0.36	69.14

Tab.1. Specifications of two prepared fabrics

Fig.2. Dimensions of specimens for trapezoidal?tear

Fig. 3. Pre?cut schematic diagram of TWF trapezoidal?tear

Fig. 4. Naming rules for trapezoidal?tear specimens

Fig.5. Tear load?displacement curve of TWF and TWFR

Fig.6. Schematic diagram of the self?locking feature of TWF

Fig.7. Yarn damage morphology in the fractured specimens

Fig.8. Stress distribution of TWF during tear

Fig.9. Tear damage morphology of specimens when the pre?cut is parallel to yarns

Fig.10. Tear damage morphology of specimens when the pre?cut is parallel to angle bisector of yarns

Fig.11. Load–displacement curves of PWF and PWFR during trapezoidal?tear

Fig.12. Damage morphology of specimens during trapezoidal?tear when the pre?cut is parallel to yarn

Fig.13. Stress distribution of PWF during tear

Fig.14. Damage morphology of specimens during trapezoidal?tear when the pre?cut is parallel to angle bisector of yarns

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