TY - Jour A2 - Lusquiños,费尔南多Au - 张,Lanlan Au - Zhang,Yingying Au - Zhao,Qichong Au - Xu,Jigang Py - 2020 DA - 2020/06/17在轴外张力下PVC涂覆织物的机械性能SP - 9634120 VL-2020 AB - 本文选择聚氯乙烯 - (PVC-)涂层织物,以研究其在不同的轴角下的脱轴拉伸行为,包括0°,15°,30°,45°,60°,75°和90°。在实验中,分析哑铃形和条形标本以形成形状效果。通过使用数字图像相关(DIC)非接触全场测量系统来研究应变分布的变化。分析样本的形状和偏离轴角度以预测形状效应的影响。结果表明,涂​​覆织物的纵向应变和剪切应变明显对称于轴轴方向。两种剪切应变分布基本相同,但纵向应变场不同。材料的偏离轴拉伸性能明显是各向异性和非线性的。标本的拉伸试验曲线主要由三个阶段组成:初始线性阶段,变形强化阶段和应力强化阶段。 At 0°, the tensile strength is the largest and the elongation at break is the smallest. In contrast, at 45°, the elongation at break is the highest and the tensile strength was the smallest. The properties under the other off-axis angles were between these two extremes. SN - 1687-8434 UR - https://doi.org/10.1155/2020/9634120 DO - 10.1155/2020/9634120 JF - Advances in Materials Science and Engineering PB - Hindawi KW - ER -