@article{ISI:000229932600005, abstract = {With the help of simulations based on energy minimization, we have studied the effect of roughness of a rigid contactor with sinusoidal and step patterns on the adhesion- debonding cycle of a soft thin elastic film. The surface instability engendered by attractive forces between the contactor and the film produces a regularly spaced array of columns in the bonding phase. The inter- column spacing is governed largely by periodicity of the contactor pattern. Decreased periodicity of the pattern favors intermittent collapse of columns rather than a continuous peeling of contact zones. An increase in the amplitude of roughness decreases the maximum force required for debonding and increases the snap- off distance. The net effect results in a reduced work for debonding. Introduction of noise and increased step- size in simulations decreases the pull- off force and the snap-off distance, as in the case of a smooth contactor. Finally the study reveals that a patterned contactor can be used as a potential template in the patterning of soft interfaces.}, author = {Sarkar, J and Sharma, A and Shenoy, V}, doi = {10.1080/00218460590944558}, eissn = {1545-5823}, issn = {0021-8464}, journal = {JOURNAL OF ADHESION}, month = {MAR-APR}, number = {3-4}, orcid-numbers = {Sharma, Ashutosh/0000-0002-2653-0806}, pages = {271-295}, researcherid-numbers = {Sharma, Ashutosh/D-1034-2011}, times-cited = {19}, title = {Adhesion and debonding of soft elastic films on rough and patterned surfaces}, unique-id = {ISI:000229932600005}, volume = {81}, year = {2005} }