Tomas Walander
University of Skövde
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Publication
Featured researches published by Tomas Walander.
International Journal of Fracture | 2013
Tomas Walander; Anders Biel; Ulf Stigh
The influence of the temperature on the cohesive laws for an epoxy adhesive is studied in the glassy region, i.e. below the glass transition temperature. Cohesive laws are derived in both Mode I and Mode II under quasi-static loading conditions in the temperature range
International Journal of Fracture | 2014
Alexander Eklind; Tomas Walander; Thomas Carlberger; Ulf Stigh
ASME 2012 International Mechanical Engineering Congress & Exposition, IMECE 2012, November 9-15, 2012, Houston, Texas, USA | 2012
Anders Biel; Tomas Walander; Ulf Stigh
-30le T le 80^{,circ }
Engineering Fracture Mechanics | 2014
Ulf Stigh; Anders Biel; Tomas Walander
Procedia Materials Science | 2014
Tomas Walander; Alexander Eklind; Thomas Carlberger; Ulf Stigh
-30≤T≤80∘C. Three parameters of the cohesive laws are studied in detail: the elastic stiffness, the peak stress and the fracture energy. Methods for determining the elastic stiffness in Mode I and Mode II are derived and evaluated. Simplified bi-linear cohesive laws to be used at any temperature within the studied temperature range are derived for each loading mode. All parameters of the cohesive laws are measured experimentally using only two types of specimens. The adhesive has a nominal layer thickness of 0.3xa0mm and the crack tip opening displacement is measured over the adhesive thickness. The derived cohesive laws thus represent the entire adhesive layer as having the present layer thickness. It is shown that all parameters, except the Mode I fracture energy, decrease with an increasing temperature in both loading modes. The Mode I fracture energy is shown to be independent of the temperature within the evaluated temperature span. At
ECF19 | 2013
Anders Biel; Ulf Stigh; Tomas Walander
International Journal of Adhesion and Adhesives | 2016
Tomas Walander; Alexander Eklind; Thomas Carlberger; Ulf Stigh; Andreas Rietz
80^{,circ }
Adhesion Society 37th Annual Meeting, February 23-26, 2014, San Diego, CA | 2014
Stephan Marzi; Olaf Hesebeck; Markus Brede; Christof Nagel; Anders Biel; Tomas Walander; Ulf Stigh
ECF19 | 2013
Tomas Walander; Anders Biel; Ulf Stigh
80∘C the Mode II fracture energy is decreased to about 2/3 of the fracture energy at
19th European Conference on Fracture (ECF19), Fracture Mechanics for Durability, Reliability and Safety, Kazan, Russia, August 26-31 2012 | 2012
Ulf Stigh; Anders Biel; Tomas Walander
