Open AccessInvestigations of the Compressive Behaviour of Veneer in Thickness Direction
Author(s) -
Beate Buchelt,
Alexander Pfriem,
André Wagenführ
Publication year - 2012
Publication title -
drvna industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.287
H-Index - 19
eISSN - 1847-1153
pISSN - 0012-6772
DOI - 10.5552/drind.2012.1122
Subject(s) - veneer , compression (physics) , materials science , composite material , stress (linguistics) , deformation (meteorology) , stress–strain curve , plateau (mathematics) , strain (injury) , compressive strength , mathematics , anatomy , mathematical analysis , medicine , philosophy , linguistics
Compression tests were conducted with veneers in the thickness direction. Thereby differences between the stress-strain curves of veneers and other known stress-strain curves were observed. Based on microscopic studies during the compression, it was possible to describe the deformation behaviour of the veneer, and deviations from known, typical stress-strain curves were substantiated and explained. It was found that a considerable part of the strain occurs by straightening the veneer at a relatively low stress level due to the waved form of veneer sheets and specimens. A distinctive stress plateau has not been established.Na furnirima su provedeni kompresijski testovi u smjeru njihove debljine. Uspoređene su dobivene krivulje naprezanja-deformacije furnira s drugim poznatim krivuljama naprezanja-deformacija. Na osnovi mikroskopske studije tijekom kompresije furnira moguće je opisati deformacije furnira i objasniti odstupanje od dosad poznatih, tipičnih krivulja naprezanja-deformacija. Istraživanja su pokazala da se zbog valovitosti listova furnira i uzoraka velik dio deformacija pojavljuje pri ispravljanju furnira već uz relativno nisku razinu naprezanja