Finite element modeling of the mechanical effects of the UV laser ablation of polymer coatings

Koukoulis, IN; Provatidis, CG; Georgiou, S

dc.contributor.author	Koukoulis, IN	en
dc.contributor.author	Provatidis, CG	en
dc.contributor.author	Georgiou, S	en
dc.date.accessioned	2014-03-01T01:28:24Z
dc.date.available	2014-03-01T01:28:24Z
dc.date.issued	2008	en
dc.identifier.issn	0169-4332	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18840
dc.subject	Finite element modeling	en
dc.subject	UV laser ablation	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Materials Science, Coatings & Films	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Finite element method	en
dc.subject.other	Laser ablation	en
dc.subject.other	Substrates	en
dc.subject.other	Surface treatment	en
dc.subject.other	Tensile stress	en
dc.subject.other	Ultraviolet radiation	en
dc.subject.other	Finite element modeling	en
dc.subject.other	Polymer coatings	en
dc.subject.other	Silica substrates	en
dc.subject.other	Structural modifications	en
dc.subject.other	Plastic coatings	en
dc.title	Finite element modeling of the mechanical effects of the UV laser ablation of polymer coatings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.apsusc.2007.11.041	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.apsusc.2007.11.041	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Laser ablation constitutes the basis of a number of techniques aiming at the processing and diagnosis of polymeric coatings on a variety of substrates. In all these applications, however, the issue is raised about the mechanical effects of the procedure on the substrate integrity. To this end, we employ finite element modeling for simulating the mechanical effects of UV laser ablation on a polymer specimen, with particular emphasis on the structural modifications that may be induced at areas away from the ablation spot. The cylindrical specimen consists of a poly(methylmethacrylate) (PMMA) film on a silica substrate. The analysis shows that stresses of high enough amplitude may propagate to distances far away from the irradiated spot and may induce deleterious mechanical deformations (e. g., cracks or delaminations). The dependence of the distribution of the tensile stresses on the thickness of the two components, as well as on size of the ablation spot area, is examined. Finally, the possibility of growth of pre-existing defects is shown. The results are overall in very good agreement with experimental observations. (C) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Applied Surface Science	en
dc.identifier.doi	10.1016/j.apsusc.2007.11.041	en
dc.identifier.isi	ISI:000254243800044	en
dc.identifier.volume	254	en
dc.identifier.issue	11	en
dc.identifier.spage	3531	en
dc.identifier.epage	3539	en