Nuorempi tutkija Antti Ahola

E-mail: Antti.Ahola@lut.fi
Mobile phone: +358504752825
ORCID ID: 0000-0001-8706-5680 (Go to ORCID profile)
CV:
Uploaded on: 02/03/2021

Current Organisation
Laboratory of Steel Structures (Superior organisation: LUT Mechanical Engineering)

Biography
D.Sc. (Tech.) Antti Ahola works as Post-Doctoral Researcher in the Laboratory of Steel Structures. His primary area of expertise is the fatigue strength of welded joints but he also works in different topics related to the joints and components made of steel. He currently works in the various research projects dealing with the fatigue strength of welded joints, particularly focusing on ultra-high-strength steel (UHSS) materials. His research activities aims to find best practice for the fatigue design of welded structures, providing comprehensive understanding of fatigue failure mechanisms in welded joints and enabling thus accurately assess life cycle of structural components. In this context, the 4R method, including residual stresses, material strength, weld toe quality and load conditions as quantitative parameters, is the principal approach.

Research Interest
Ultra-high-strength steels (UHSSs) can provide significant weight reduction in steel structures and thus enable energy-efficient solutions for advanced structural applications. From the design viewpoints, one main concern in welded UHSS materials is the fatigue strength capacity as an increase in the yield/ultimate strength of material does not necessarily contribute achieving high fatigue strength unless post-weld treatments are introduced. In this regard, the characterization of fatigue strength properties is of paramount importance. On the other, an important step for the efficient use of UHSS materials is to have appropriate and comprehensive fatigue assessment methods considering the parameters influencing the life cycle of welded structural components. My research interests are closely related to these aspects - to understand the fatigue mechanisms in welded UHSS components, and to develop novel and comprehensive fatigue design methods for assessments, not forgetting the close collaboration with and impact on engineering world with practical solutions.

Teaching Experience
2021 - present Experimental Research of Welding and Structures, Associate Lecturer
2020 - present Steel Structures I (in Finnish), Lecturer
2018 - present Applications for FE-method for Steel Structures, Assistant
2018 - 2019 Applications for FE-method in Mechanical Engineering, Assistant
2017 - 2018 Scientific Research of Welding and Structures, Associate Lecturer/Assistant
2015 - 2019 Steel Structures II, Assistant
2015 - 2019 Steel Structures I (in Finnish), Associate Lecturer/Assistant
2013 - 2014 Strength of Materials I (in Finnish), Assistant
2013 - 2014 Statics (in Finnish), Assistant
2012 - 2013 Physics (L) (in Finnish), Assistant

Publications
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Fatigue strength of longitudinal load-carrying welds in beams made of ultra-high-strength steel (2021)
A1 Journal article (refereed), original research
Skriko Tuomas, Lipiäinen Kalle, Ahola Antti, et al.
Journal of Constructional Steel Research
Fatigue strength assessment of ground fillet-welded joints using 4R method (2020)
A1 Journal article (refereed), original research
Ahola Antti, Muikku Arttu, Braun Moritz, et al.
International Journal of Fatigue
Fatigue strength assessment of ground fillet-welded steel joints using 4R method (IIW-Doc. XIII-2862-2020) (2020)
D4 Published development or research report or study
Ahola Antti, Muikku Arttu, Braun Moritz, et al.
International Institute of Welding
Fatigue strength assessment of TIG-dressed ultra-high-strength steel fillet weld joints using the 4R method (2020)
A1 Journal article (refereed), original research
Mettänen Heli, Nykänen Timo, Skriko Tuomas, et al.
International Journal of Fatigue
Fatigue strength characterization of high and ultra-high-strength steel cut edges (2020)
A1 Journal article (refereed), original research
Lipiäinen Kalle, Ahola Antti, Skriko Tuomas, et al.
Engineering Structures
Fatigue strength of misaligned non-load-carrying cruciform joints made of ultra-high-strength steel (2020)
A1 Journal article (refereed), original research
Ahola Antti, Björk Timo
Journal of Constructional Steel Research
On the distortion and warping of cantilever beams with hollow section (2020)
A1 Journal article (refereed), original research
Björk Timo, Ahola Antti, Skriko Tuomas
Welding in the World
Re-evaluation of weld root fatigue strength for load-carrying fillet welded joints using the notch stress concept (2020)
A1 Journal article (refereed), original research
Rohani Raftar Hamidreza, Dabiri Mohammad, Ahola Antti, et al.
International Journal of Fatigue
Stress components and local effects in the fatigue strength assessment of fillet weld joints made of ultra-high-strength steels (2020)
G5 Doctoral dissertation (article)
Ahola Antti
Acta Universitatis Lappeenrantaensis
Bonded CFRP to high strength steels (2019)
A1 Journal article (refereed), original research
Amraei Mohsen, Zong Lingjia, Ahola Antti, et al.
Rakenteiden Mekaniikka



Keywords
Fatigue
Steel structures
Welded joints

Last updated on 2021-02-03 at 04:02