Effects of Stiff Film Pattern Geometry on Surface Buckling Instabilities of Elastic Bilayers

2018 ◽  
Vol 10 (27) ◽  
pp. 23406-23413 ◽  
Author(s):  
Tetsu Ouchi ◽  
Jiawei Yang ◽  
Zhigang Suo ◽  
Ryan C. Hayward
Keyword(s):  
Surface Buckling

Surface buckling of a bending microbeam due to surface elasticity

2007 ◽  
Vol 77 (4) ◽  
pp. 44002 ◽  
Author(s):  
G. F Wang ◽  
X. Q Feng ◽  
S. W Yu
Keyword(s):  
Surface Elasticity ◽  
Surface Buckling

Surface buckling of a layered medium

1975 ◽  
Vol 9 (4) ◽  
pp. 572-576 ◽  
Author(s):  
Yu. N. Novichkov ◽  
E. N. Sinitsyn
Keyword(s):  
Layered Medium ◽  
Surface Buckling

Experimental Investigation of Spontaneous Buckling-Driven Delamination of Thin Films on Soft Spherical Substrate

2019 ◽  
Author(s):  
Yusaku Saito ◽  
Shuhei Yoshioka ◽  
Kanako Emori ◽  
Brenda Teoh Rui Ern ◽  
Akio Yonezu
Keyword(s):  
Spherical Shell ◽  
Biaxial Loading ◽  
Radial Strain ◽  
Air Pressure ◽  
Surface Strain ◽  
Biaxial Compression ◽  
Bulge Test ◽  
Pdms Substrate ◽  
Pdms Film ◽  
Surface Buckling

Abstract This study develops a new experimental system to investigate surface buckling patterns that emerge due to the biaxial compression of elastomeric bilayer spherical shell. The sample used in this study is a thick PDMS (polydimethylsiloxane) substrate and a thin PDMS film. In order to induce biaxial strain to the surface of PDMS substrate, air pressured device like bulge test is first developed. This system enables a flat PDMS plate to isotropically expand and become a hemisphere due to air pressure. In other words, the surface of PDMS substrate is stretched and subjected to biaxial loading. Subsequently, a thin PDMS film is covered on the hemisphere substrate. By releasing the air pressure, the pre-stretch in the substrate is released gradually and the outer film is subjected to biaxial compression. During the biaxial compression, various film buckling patterns are observed. It is found that the surface buckling patterns are wrinkle formation that is associated with film delamination. This formation pattern is dependent on the surface strain distribution, i.e. radial strain and circumferential strain. In order to control the pattern of buckling-delamination, we systematically changed the material parameters, such as the film thickness, Young’s modulus, interfacial fracture toughness, etc. Our experiment is capable in reproducing various wrinkle patterns with film delamination on an elastomeric bilayer spherical shell.

The Surface Buckling in Static and Dynamic Rough Contact of Solids

2005 ◽  
Author(s):  
Roman V. Riznychuk
Keyword(s):  
Friction Coefficient ◽  
Shear Strain ◽  
Stable State ◽  
Static Friction ◽  
Shear Loading ◽  
Surface Material ◽  
Friction Contact ◽  
Static Friction Coefficient ◽  
Surface Buckling ◽  
Compression Strain

The contact buckling, caused by some rotation at the surface material due to mutual partial gripping of bodies during friction contact, with leads to the loss of stable state, is described. Material before such gripped spots takes the shape of buckle and its shear strain transforms into the compression strain. The rotation generated by the buckle propagates along the surface and causes further buckling. Such pattern is typical for loss of stable state of two elastic rough bodies under shear loading as a whole and it corresponds to the static friction coefficient.

scholarly journals Low-Cost Scalable Production of Freestanding Two-Dimensional Metallic Nanosheets by Polymer Surface Buckling Enabled Exfoliation

2020 ◽  
Vol 1 (11) ◽  
pp. 100235
Author(s):  
Tianyu Wang ◽  
Minhyuk Park ◽  
Quanfeng He ◽  
Zhaoyi Ding ◽  
Qing Yu ◽  
...  
Keyword(s):  
Low Cost ◽  
Polymer Surface ◽  
Two Dimensional ◽  
Surface Buckling ◽  
Scalable Production

Surface buckling with deterministic peaks/valleys regulated by bio-inspired micro-structures periodically distributed on elastic bilayers

2021 ◽  
Vol 129 (6) ◽  
pp. 064703
Author(s):  
Juhua Xie ◽  
Ao Li ◽  
Xian Wang ◽  
Minhao Zhu ◽  
Yin Huang ◽  
...  
Keyword(s):  
Surface Buckling ◽  
Micro Structures

Si(111)-(2×1) Surface: Buckling, Chains, or Molecules?

1983 ◽  
Vol 51 (24) ◽  
pp. 2233-2233 ◽  
Author(s):  
R. M. Tromp ◽  
L. Smit ◽  
J. F. van der Veen
Keyword(s):  
Surface Buckling
Sign in / Sign up

Export Citation Format

Share Document