Comptes Rendus
Indentation-triggered pattern transformation in hyperelastic soft cellular solids
Comptes Rendus. Mécanique, Volume 342 (2014) no. 5, pp. 292-298.

This paper explores indentation-triggered microstructural instability in hyperelastic cellular solids through combined experimental, numerical, and theoretical efforts. The results demonstrate that when the indentation depth is greater than a critical value, local instability occurs and further propagates into a rectangular region beneath the indenter. The width of the rectangular region scales with the contact width, and we propose a simple scaling relation to estimate the maximum depth to which the instability can propagate based on the elastic contact theory. The results reported here may find such applications as in the integrity evaluation of soft cellular materials and structures and the development of advanced functional materials with unique optical, acoustic and wetting properties.

Published online:
DOI: 10.1016/j.crme.2014.01.011
Keywords: Hyperelastic cellular solid, Indentation, Pattern transformation

Ke-Lin Chen 1; Yan-Ping Cao 1; Man-Gong Zhang 1; Xi-Qiao Feng 1

1 Institute of Biomechanics and Medical Engineering, Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China
     author = {Ke-Lin Chen and Yan-Ping Cao and Man-Gong Zhang and Xi-Qiao Feng},
     title = {Indentation-triggered pattern transformation in hyperelastic soft cellular solids},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {292--298},
     publisher = {Elsevier},
     volume = {342},
     number = {5},
     year = {2014},
     doi = {10.1016/j.crme.2014.01.011},
     language = {en},
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AU  - Yan-Ping Cao
AU  - Man-Gong Zhang
AU  - Xi-Qiao Feng
TI  - Indentation-triggered pattern transformation in hyperelastic soft cellular solids
JO  - Comptes Rendus. Mécanique
PY  - 2014
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VL  - 342
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DO  - 10.1016/j.crme.2014.01.011
LA  - en
ID  - CRMECA_2014__342_5_292_0
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%A Yan-Ping Cao
%A Man-Gong Zhang
%A Xi-Qiao Feng
%T Indentation-triggered pattern transformation in hyperelastic soft cellular solids
%J Comptes Rendus. Mécanique
%D 2014
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Ke-Lin Chen; Yan-Ping Cao; Man-Gong Zhang; Xi-Qiao Feng. Indentation-triggered pattern transformation in hyperelastic soft cellular solids. Comptes Rendus. Mécanique, Volume 342 (2014) no. 5, pp. 292-298. doi : 10.1016/j.crme.2014.01.011.

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