Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation
This article deals with a new original analytical solution of deformation, force and stress states in wood screw joints up to the limit values of pulling out/breaking the screw. The screws are under tension. The wood-to-screw interaction is effectively simplified by introducing several physical mode...
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doaj-3b94cfef26c2496eab4aea6e1263d18b2021-07-01T00:27:53ZengMDPI AGApplied Sciences2076-34172021-06-01115616561610.3390/app11125616Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic FoundationKarel Frydrýšek0Šárka Michenková1Leopold Pleva2Jan Koutecký3Jiří Fries4Kateřina Peterek Dědková5Roman Madeja6Antonín Trefil7Pavel Krpec8Tomáš Halo9Leopold Hrabovský10Lubor Bialy11Roland Jančo12Jiří Pokorný13Faculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava-Vítkovice, Czech RepublicMedin, a.s, Vlachovicka 619, 592 31 Nové Město na Moravě, Czech RepublicFaculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicCenter of Advanced Innovation Technologies, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava-Vítkovice, Czech RepublicFaculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicV-NASS, a.s., Halasova 2938/1a, 703 00 Ostrava-Vítkovice, Czech RepublicFaculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Mechanical Engineering, VSB-Technical University of Ostrava, 17. Listopadu 15/2172, 708 00 Ostrava-Poruba, Czech RepublicFaculty of Medicine, University of Ostrava, Syllabova 19, 703 00 Ostrava-Vítkovice, Czech RepublicFaculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Námestie Slobody 17, 812 31 Bratislava 1, SlovakiaFaculty of Safety Engineering, VSB-Technical University of Ostrava, Lumírova 630/13, 700 30 Ostrava-Výškovice, Czech RepublicThis article deals with a new original analytical solution of deformation, force and stress states in wood screw joints up to the limit values of pulling out/breaking the screw. The screws are under tension. The wood-to-screw interaction is effectively simplified by introducing several physical model variants using a tangential elastic non-linear foundation. The experimental verification of the proposed models using pull-out tests (i.e., pulling out screws from dry spruce wood in laboratory conditions) confirms the correctness of the proposed models of the elastic linear/non-linear foundation. The validity of the model is also analytically and experimentally verified in the biomechanical model of pulling out screws from the femur of a bovine/human cadaver, which confirms and expands the validity of newly designed screw joint models outside the timber structure area.https://www.mdpi.com/2076-3417/11/12/5616screw jointstensile stresspull-out testanalytical and experimental solutionwoodtangential elastic foundation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Karel Frydrýšek Šárka Michenková Leopold Pleva Jan Koutecký Jiří Fries Kateřina Peterek Dědková Roman Madeja Antonín Trefil Pavel Krpec Tomáš Halo Leopold Hrabovský Lubor Bialy Roland Jančo Jiří Pokorný |
spellingShingle |
Karel Frydrýšek Šárka Michenková Leopold Pleva Jan Koutecký Jiří Fries Kateřina Peterek Dědková Roman Madeja Antonín Trefil Pavel Krpec Tomáš Halo Leopold Hrabovský Lubor Bialy Roland Jančo Jiří Pokorný Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation Applied Sciences screw joints tensile stress pull-out test analytical and experimental solution wood tangential elastic foundation |
author_facet |
Karel Frydrýšek Šárka Michenková Leopold Pleva Jan Koutecký Jiří Fries Kateřina Peterek Dědková Roman Madeja Antonín Trefil Pavel Krpec Tomáš Halo Leopold Hrabovský Lubor Bialy Roland Jančo Jiří Pokorný |
author_sort |
Karel Frydrýšek |
title |
Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation |
title_short |
Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation |
title_full |
Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation |
title_fullStr |
Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation |
title_full_unstemmed |
Mechanics of Screw Joints Solved as Beams Placed in a Tangential Elastic Foundation |
title_sort |
mechanics of screw joints solved as beams placed in a tangential elastic foundation |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2021-06-01 |
description |
This article deals with a new original analytical solution of deformation, force and stress states in wood screw joints up to the limit values of pulling out/breaking the screw. The screws are under tension. The wood-to-screw interaction is effectively simplified by introducing several physical model variants using a tangential elastic non-linear foundation. The experimental verification of the proposed models using pull-out tests (i.e., pulling out screws from dry spruce wood in laboratory conditions) confirms the correctness of the proposed models of the elastic linear/non-linear foundation. The validity of the model is also analytically and experimentally verified in the biomechanical model of pulling out screws from the femur of a bovine/human cadaver, which confirms and expands the validity of newly designed screw joint models outside the timber structure area. |
topic |
screw joints tensile stress pull-out test analytical and experimental solution wood tangential elastic foundation |
url |
https://www.mdpi.com/2076-3417/11/12/5616 |
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