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Bending and buckling of wet paper

机译:湿纸弯曲和屈曲

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摘要

Flat paper stained with water buckles and wrinkles as it swells and deforms out of the original plane. Here we quantify the geometry and mechanics of a strip of paper that swells when it imbibes water from a narrow capillary. Characterizing the hygroexpansive nature of paper shows that thickness-wise swelling is much faster than in-plane water imbibition, leading to a simple picture for the process by which the strip of paper bends out of the plane. We model the out-of-plane deformation using a quasi-static theory and show that our results are consistent with quantitative experiments. (C) 2016 AIP Publishing LLC.
机译:扁平纸在膨胀和变形到原始平面之外时沾有水曲折和皱纹。在这里,我们量化了一条纸带的几何形状和力学特性,该纸带从狭窄的毛细管中吸水时会膨胀。表征纸张的湿膨胀特性表明,厚度方向上的溶胀比平面内吸水要快得多,从而为纸带弯曲到平面外的过程提供了简单的图像。我们使用准静态理论对平面外变形建模,并表明我们的结果与定量实验一致。 (C)2016 AIP出版有限责任公司。

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