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arXiv 1602.00562cond-mat.soft
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塑性和尺寸对薄板起皱的影响

Effect of plasticity and dimensionality on crumpling of a thin sheet

Mehdi Habibi, Mokhtar Adda-Bedia, Daniel Bonn

摘要:

将一张纸揉皱并压缩成一个球的过程取决于许多难以解开的参数。通过对不同弹塑性的材料进行各向同性压实实验,研究了塑性对压皱过程的影响,并分析了塑性和压实维数对压皱过程的影响。将一张纸揉成一个球所需的力以及球内的层数与揉成的球的大小有幂律关系,每个都有自己的幂律指数。我们通过实验确定这两个指数,并发现它们是线性比例和材料的塑性增加而减少。最后,我们提供了一个缩放参数预测与我们的实验结果非常吻合的系数为3.5的两个指数之间的线性关系。

英文摘要:

The process of crumpling a sheet and compacting it into a ball is dependent on many parameters that are difficult to disentangle. We study the effect of plasticity on the crumpling process, and disentangle the effects of plasticity and dimensionality of compaction by performing isotropic compaction experiments on various materials with different elastoplasticities. The force required to crumple a sheet into a ball as well as the number of layers inside the ball have a power-law dependence on the size of the crumpled ball, each with its own power-law exponent. We experimentally determine both exponents and find that they are linearly proportional to and decrease with increasing plasticity of the material. Finally we provide a scaling argument predicting a linear relation between the two exponents with a coefficient of 3.5 in excellent agreement with our experimental results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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