Technical Advances in Aviation Electrification: Enhancing Strategic R&D Investment Analysis through Simulation Decomposition | 2021 Publication type A1 Journal article (refereed), original research Author(s) Kozlova Mariia, Nykänen Timo, Yeomans Julian Scott Business - Sustainable renewal of business and industry Energy - Transition to carbon-neutral world LUT Business School LUT School of Energy Systems
Fatigue strength assessment of TIG-dressed ultra-high-strength steel fillet weld joints using the 4R method | 2020 Publication type A1 Journal article (refereed), original research Author(s) Mettänen Heli, Nykänen Timo, Skriko Tuomas, Ahola Antti, Björk Timo
A novel method for fatigue assessment of steel plates with thermally cut edges | 2017 Publication type A1 Journal article (refereed), original research Author(s) Peippo Juha, Björk Timo, Nykänen Timo
3R-menetelmän käyttö vaihtuva-amplitudisesti kuormitettujen hitsausliitosten väsymisanalysoinnissa | 2016 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Mettänen Heli, Ahola Antti, Skriko Tuomas, Hämäläinen Olli-Pekka, Björk Timo
A novel method for fatigue assessment of steel plates with thermally cut edges | 2016 Publication type D4 Published development or research report or study Author(s) Peippo Juha, Björk Timo, Nykänen Timo Other Focus Area LUT School of Energy Systems
Effect of loading type on the fatigue strength of asymmetric and symmetric transverse non-load carrying attachments | 2016 Publication type A1 Journal article (refereed), original research Author(s) Ahola Antti, Nykänen Timo, Björk Timo
Fatigue assessment of welded joints under variable amplitude loading using a novel notch stress approach | 2016 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Mettänen Heli, Björk Timo, Ahola Antti
On the critical plane of axially loaded plate structures made of ultra-high strength steel | 2016 Publication type A1 Journal article (refereed), original research Author(s) Björk Timo, Nykänen Timo, Valkonen Ilkka
Punching shear capacity of T-joint made of high-strength steel | 2016 Publication type A1 Journal article (refereed), original research Author(s) Björk Timo, Ahola Antti, Nykänen Timo Engineering Materials Science LUT School of Energy Systems
A new proposal for assessment of the fatigue strength of steel butt-welded joints improved by peening (HFMI) under constant amplitude tensile loading | 2015 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Bjork Timo Engineering Materials Science LUT School of Energy Systems
A new proposal for the assessment of fatigue strength of steel butt-welded joints improved by peening | 2015 Publication type B3 Unrefereed conference proceedings Author(s) Nykänen Timo, Bjork Timo Other Focus Area Mechanical Engineering Engineering Materials Science LUT School of Energy Systems
Assessment of fatigue strength of steel butt-welded joints in as-welded condition – Alternative approaches for curve fitting and mean stress effect analysis | 2015 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Björk Timo Engineering Materials Science LUT School of Energy Systems
Novel notch stress approach for fatigue design of butt welded joints improved by peening | 2015 Publication type Other Author(s) Nykänen Timo, Bjork Timo
On the critical plane of axially loaded plate structures made of ultra high strength steel (IIW Doc. XV-1492-15) | 2015 Publication type D4 Published development or research report or study Author(s) Björk Timo, Salo Joel, Nykänen Timo, Valkonen Ilkka Other Focus Area Engineering Materials Science LUT School of Energy Systems
Effects of weaving technique on the fatigue strength of transverse loaded fillet welds made of ultra-high-strength steel | 2014 Publication type A1 Journal article (refereed), original research Author(s) Skriko T, Björk T, Nykänen T, Skriko T
Fatigue strength of steel butt-welded joints in as-welded conditionEvaluation of current practice and alternative considerations | 2014 Publication type Other Author(s) Nykänen Timo, Bjork Timo Engineering Metals and Alloys LUT School of Energy Systems
Punching shear capacity of T-joint made of high strength steel plates (IIW Doc. XV-1471-14) | 2014 Publication type D4 Published development or research report or study Author(s) Bjork Timo, Forsström L, Ahola Antti, Nykänen Timo Engineering LUT School of Energy Systems
Residual strength at -40o C of a pre-cracked cold-formed rectangular hollow section made of ultra-high-strength steel – An engineering approach | 2014 Publication type A1 Journal article (refereed), original research Author(s) Nykänen T, Björk T, Mettänen H, Ilyin A V, Koskimäki M
Rotation capacity of fillet weld joints made of high-strength steel | 2014 Publication type A1 Journal article (refereed), original research Author(s) Björk Timo, Penttilä Timo, Nykänen Timo
Some comparisons and comments | 2014 Publication type D4 Published development or research report or study Author(s) Nykänen Timo
Comparison of 2D and 3D stress intensity factors | 2013 Publication type D4 Published development or research report or study Author(s) Nykänen Timo
Comparison of different methods for fatigue assessment of vibrating welded structures | 2013 Publication type D4 Published development or research report or study Author(s) Mettänen H, Björk T, Nykänen T
Effects of welding weaving technique on the fatigue strength of transverse loaded fillet welds made of ultra-high-strength steel (IIW-Doc. XIII-2473-13) | 2013 Publication type D4 Published development or research report or study Author(s) Skriko T, Björk T, Nykänen T
Fatigue strength prediction of ultra high strength steel butt welded joints | 2013 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Björk Timo, Laitinen Risto Mechanical Engineering LUT School of Energy Systems
Rotation capacity of fillet weld joints made of high strength steel. IIW-Doc. XV-1445-13 | 2013 Publication type D4 Published development or research report or study Author(s) Björk T, Viitala A, Penttilä T, Nykänen T
Väsytyskuormitetun UHSS-rakenneputken äärikestävyys alhaisissa käyttölämpötiloissa (Residual strength at -40o C of a pre-cracked cold-formed rectangular hollow section made of ultra-high-strength steel - An engineering approach) | 2013 Publication type Other Author(s) Nykänen Timo, Björk Timo, Mettänen Heli, Ilyin A V, Koskimäki Matti
Capacity of fillet welded joints made of ultra high strength steel | 2012 Publication type A1 Journal article (refereed), original research Author(s) Björk Timo, Toivonen Joe, Nykänen Timo Mechanical Engineering LUT School of Energy Systems
Jännitysintensiteettikertoimen kynnysarvon DKth määrityksestä | 2012 Publication type Other Author(s) Nykänen Timo
The Integrity Analysis of the Structural Element Made of Ultra High Strength Steel | 2012 Publication type A1 Journal article (refereed), original research Author(s) Graba Marcin, Nykänen Timo, Neimitz Andrzej Mechanical Engineering LUT School of Energy Systems
Round Robin Calculations of Fatigue Assessment by Fracture Mechanics – Results of LUT and Comparisons | 2011 Publication type D4 Published development or research report or study Author(s) Nykänen Timo Mechanical Engineering LUT School of Energy Systems
Round Robin Calculations of Fatigue Assessment by Fracture Mechanics – Results of LUT and Comparisons | 2010 Publication type D4 Published development or research report or study Author(s) Nykänen Timo Other Focus Area Mechanical Engineering LUT School of Energy Systems
Static strength and fracture characteristics of new ultra-high-strength steels with yield strengths 900 - 960 MPa | 2010 Publication type A4 Conference proceedings Author(s) Nevasmaa Pekka, Karjalainen-Roikonen Päivi, Laukkanen Anssi, Nykänen Timo, Ameri T, Björk Timo, Limnell Teijo, Kuoppala Juha Mechanical Engineering LUT School of Energy Systems
Static strength of fillet weld joints made of ultra high strength steel | 2010 Publication type D4 Published development or research report or study Author(s) Björk Timo, Toivonen J, Nykänen Timo Other Focus Area Mechanical Engineering LUT School of Energy Systems
A simplified fatigue assessment method for high quality welded cruciform joints | 2009 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Fatigue crack patterns in ultrasonic peened welded structures during constant and variable amplitude loading | 2009 Publication type D3 Professional conference proceedings Author(s) Marquis Gary, Nykänen Timo, Björk Timo
Fatigue strength of ultra high strength steel butt-welded joints under constant amplitude loading | 2009 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Björk Timo, Koskimäki Matti, Laitinen Risto
Fatigue life predictions using simplified two stage model for cruciform joints | 2008 Publication type D4 Published development or research report or study Author(s) Nykänen Timo
An Assessment of Fatigue Strength of Load Carrying Joints with 2D and 3D Lack of Penetration | 2007 Publication type D3 Professional conference proceedings Author(s) Oinonen Ahti, Nykänen Timo, Björk Timo, Marquis Gary
Approximative master curve for fatigue assessment of cruciform joints with non-load-carrying welds | 2007 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Effect of weld geometry on the fatigue strength of fillet welded cruciform joints | 2007 Publication type D3 Professional conference proceedings Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Effect of weld toe radius on the fatigue strength of fillet welded cruciform joints | 2007 Publication type Other Author(s) Nykänen Timo, Marquis Gary, Björk Timo Fields of Research Engineering LUT School of Energy Systems
Fatigue analysis of non-load-carrying fillet welded cruciform joints | 2007 Publication type D3 Professional conference proceedings Author(s) Nykänen Timo, Marquis Gary, Björk Timo, Makkapati Sri Harsha
Fatigue analysis of non-load-carrying fillet welded cruciform joints | 2007 Publication type A1 Journal article (refereed), original research Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Hitsin laatu | 2007 Publication type D4 Published development or research report or study Author(s) Björk Timo, Nykänen Timo, Marquis Gary
Simplified assessment of weld quality for fatigue loaded cruciform joints | 2007 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Sylinteriliitoksen väsymislujuus | 2007 Publication type D4 Published development or research report or study Author(s) Koskimäki Matti, Björk Timo, Nykänen Timo Fluid Flow and Transfer Processes Energy (miscellaneous) LUT School of Energy Systems
Effect of local geometrical variations on the fatigue strength of fillet welded joints | 2006 Publication type D3 Professional conference proceedings Author(s) Nykänen Timo, Marquis Gary, Björk Timo
Fatigue strength of a Metso PanelBoard drum | 2006 Publication type Other Author(s) Nykänen Timo, Björk Timo, Lihavainen Veli-Matti, Rajamäki Pekka, Heikkinen Antti
Fracture mechanics and parametric equations for fatigue strength | 2006 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Marquis Gary, Björk Timo
A parametric fracture mechanics study of welded joints with toe cracks and lack of penetration | 2005 Publication type A2 Review article, literature review, systematic review Author(s) Nykänen Timo, Li Xiaoyan, Björk Timo, Marquis Gary Mechanical Engineering LUT School of Energy Systems
Fatigue analysis of non-load-carrying fillet welded cruciform joints | 2005 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Marquis Gary, Björk Timo, Makkapati Sri Harsha Mechanical Engineering LUT School of Energy Systems
The parametric Mk-functions for toe crack and undercut in a double symmetric fillet welded non load-carrying X-joint with tensile loading | 2005 Publication type D4 Published development or research report or study Author(s) Nykänen Timo
Sylinteriputken päittäishitsin väsymistarkastelu | 2004 Publication type D4 Published development or research report or study Author(s) Nykänen Timo, Björk Timo, Lihavainen Veli-Matti, Rajamäki Pekka, Heikkinen Antti Mechanical Engineering LUT School of Energy Systems
Sylinteriputken päittäishitsin väsymistrakastelu | 2004 Publication type D4 Published development or research report or study Author(s) Björk Timo, Nykänen Timo, Lihavainen Veli-Matti, Rajamäki Pekka, Heikkinen Antti Mechanical Engineering LUT School of Energy Systems
A parametric fracture mechanics analysis of a single fillet welded T-joint | 2003 Publication type D3 Professional conference proceedings Author(s) Nykänen Timo, Björk Timo, Marquis Gary Mechanical Engineering LUT School of Energy Systems
Dynamiikka II | 2003 Publication type Other Author(s) Nykänen Timo Mechanical Engineering LUT School of Energy Systems
Herätinkoneen hitsin kestävyyden selvittäminen | 2003 Publication type D4 Published development or research report or study Author(s) Järvinen Vesa, Mäkinen Antti, Eriksson Markku, Björk Timo, Nykänen Timo Mechanical Engineering LUT School of Energy Systems
Paremman väsymiskestävyyden laskennallinen huomioon ottaminen | 2003 Publication type D4 Published development or research report or study Author(s) Nykänen Timo