Analysis of crease-wrinkle interaction for thin sheets
Analysis of crease-wrinkle interaction for thin sheets
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DOI：
10.1007/s12206-011-1247-5
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发表时间：
2012-03
影响因子：
1.6
通讯作者：
K. Woo;C. Jenkins
中科院分区：
文献类型：
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作者：
K. Woo;C. Jenkins
本文采用几何非线性后屈曲分析方法，研究了板料厚度、展开角和载荷比对起皱-起皱相互作用的影响。用薄壳单元模拟了带有单一横向折痕的正方形薄板结构。通过最初提供有折痕的膜片的实际展开状态来进行分析。然后施加不均匀角载荷以引入弯曲。从折痕上的皱纹演变的精细尺度细节的诱导各向异性的影响，作为板厚度，负载和折痕展开角的函数进行了系统的研究。当这些参数变化时，在片材顺应性和折痕-折痕相互作用中发现了显著差异。
In this paper, geometrically non-linear post-buckling analyses were performed to study the effect of sheet thickness, deployment angle, and load ratio on the crease-wrinkle interaction. A square sheet configuration with a single transverse crease was modeled using thin shell elements. The analysis proceeded by initially providing a realistic deployed state of a creased membrane sheet. Then an uneven corner loading was applied to introduce wrinkling. The effects of the induced anisotropy from the crease on the fine-scale detail of the wrinkle evolution, as a function of sheet thickness, loading, and crease deployment angle were systematically investigated. Significant differences were found in sheet compliance and crease-wrinkle interaction as these parameters were varied.