Based on the principle of pneumatic structures,a test device for biaxial tension of fabric is designed.and biaxial tension test on different warp/weft stress ratios is carried out.

• 本文根据充气结构原理设计并完成了一套薄膜材料双轴拉伸试验装置，可对薄膜材料在不同应力比下进行双轴拉伸试验。