工程科学与技术   2018, Vol. 50 Issue (5): 71-76

1. 长江科学院，湖北 武汉 430010;
2. 水利部水工程安全与病害防治工程技术研究中心，湖北 武汉 430010;
3. 武汉大学 水资源与水电工程科学国家重点实验室，湖北 武汉 430072

An Experimental and Numerical Investigation on Compression-resilience Responses of Membrane Materials in Spiral Case Structures
ZHANG Qiling1,2, HU Lei1,2, HU Chao1,2, WU Hegao3
1. Changjiang River Scientific Research Inst., Wuhan 430010, China;
2. Research Center on Water Eng. Safety and Disaster Prevention of MWR, Wuhan 430010, China;
3. State Key Lab. of Water Resources and Hydropower Eng. Sci., Wuhan Univ., Wuhan 430072, China
Key words: spiral case    membrane    nonlinearity    permanent set    compression test    numerical simulation

1 试验研究 1.1 垫层材料

 图1 垫层材料试样 Fig. 1 Membrane material specimens

1.2 试验方案

 图2 压缩试验装置 Fig. 2 Compression testing setup

1.3 试验结果

 图3 循环加–卸压作用下垫层材料的应力–应变响应路径 Fig. 3 Cyclic compressive stress-strain curves of the membrane materials

2 数值模拟 2.1 数值模型

 图5 垫层材料试样的平面轴对称有限元模型 Fig. 5 Plane axisymmetric finite element model of the specimen

2.2 模拟结果

 图6 垫层材料压缩–回弹过程的数值模拟结果与试验数据的对比 Fig. 6 Comparison between the numerical and experimental results concerning the compression-resilience responses of the membrane materials

3 工程建议

4 结　语

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