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Effect of laser drilling on mechanical properties of fir (abies borisii regis) and spruce (picea excelsa) wood

Adamopoulos Stergios , Passialis Constantinos , Voulgaridis Elias , Moustaizis Stavros , Kortsalioudakis Nathanail, Petrakis Panagiotis, Karastergiou Sotirios , Foti Dafni , Koutsianitis Dimitrios , Voulgaridou Eleni

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URIhttp://purl.tuc.gr/dl/dias/AAC39097-74E7-4F70-B8BD-A70E23BA7268-
Languageen-
TitleEffect of laser drilling on mechanical properties of fir (abies borisii regis) and spruce (picea excelsa) wooden
CreatorAdamopoulos Stergios en
CreatorPassialis Constantinos en
CreatorVoulgaridis Elias en
CreatorMoustaizis Stavros en
CreatorKortsalioudakis Nathanailen
CreatorΚορτσαλιουδακης Ναθαναηλel
CreatorPetrakis Panagiotisen
CreatorΠετρακης Παναγιωτηςel
CreatorKarastergiou Sotirios en
CreatorFoti Dafni en
CreatorKoutsianitis Dimitrios en
CreatorVoulgaridou Eleni en
Content SummaryFir and spruce wood specimens, 20 × 20 mm in cross section and 340 mm long, were prepared with true radial and tangential surfaces. All lateral surfaces of the specimens were drilled by laser beams to a depth of 0.4 cm (1/5 of specimen thickness) with two drilling patterns (distance between holes 1 × 1 cm and 1 × 2 cm). After drilling, MOE and MOR in static bending, axial compression and toughness were determined and compared with non-drilled controls. MOE was not affected by the laser drilling but MOR was significantly increased. The increase in MOR was 12-13% for the drilled fir specimens as compared to controls and was significant only for the 1 × 2 cm pattern, while for spruce it was noted an even higher increase of 21-24% significant for both drilling patterns. Toughness strength of drilled fir and spruce specimens was lower than the non-drilled but the differences were not significant. Laser drilling had a positive significant impact in axial compression strength with an increase of 20-23% for fir and 19-27% for spruce, and no differences between the drilling patterns. The overall results imply that strength properties do not decline by the laser drilling and, thus, are encouraging for further evaluating the drilling effects on the liquid permeability of these refractory to impregnation species. en
Type of ItemΔημοσίευση σε Συνέδριοel
Type of ItemConference Publicationen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2015-11-08-
Date of Publication2014-
SubjectLaser percussion drillingen
Subjectlaser drillingen
Subjectlaser percussion drillingen
Bibliographic CitationS. Adamopoulos, C. Passialis, E. Voulgaridis, S. Moustaizis, N. Kortsalioudakis, P. Petrakis, S. Karastergiou, D. Foti, D. Koutsianitis and E. Voulgaridou, "Effect of laser drilling on mechanical properties of fir (Abies borisii regis) and spruce (Picea excelsa) wood", in The 5th RCCWS International Symposium, 2014.en

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