On axisymmetric/diamond-like mode transitions in axially compressed core-shell cylinders
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- 作者：Fan Xua ; b ; fanxu@fudan.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Michel Potier-Ferryb ; michel.potier-ferry@univ-lorraine.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Post-buckling ; Bifurcation ; Core&ndash ; shell cylinder ; Axisymmetric pattern ; Diamond-like pattern ; Path-following technique
- 刊名：Journal of the Mechanics and Physics of Solids
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：94
- 期：Complete
- 页码：68-87
- 全文大小：4587 K
文摘
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A theoretical analysis is carried out to find critical parameters for pattern selection in core–shell soft cylinders.
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A 3D finite element model is developed for post-buckling analysis from a quantitative standpoint.
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Tracing of surface mode transitions is performed by a path-following continuation technique.
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Transition from axisymmetric modes to non-axisymmetric diamond-like patterns is captured.
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Curvature and modulus effects on pattern selection are quantified and the phase diagram is drawn.