Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Hokka Mikko"'
Publikováno v:
EPJ Web of Conferences, Vol 250, p 02013 (2021)
Aerospace components in jet engines need to outstand extreme conditions of high-temperatures and loads. Moreover, these components can sometimes undergo dynamic conditions if impact occurs during the flight. It is critical to understand the behaviour
Externí odkaz:
https://doaj.org/article/0134e169b2d54b41926714bc19993803
Experimental-numerical method for evaluation of energy consumption in percussive drilling of granite
Autor:
Yao Wei, Hokka Mikko
Publikováno v:
EPJ Web of Conferences, Vol 250, p 01012 (2021)
Most geothermal energy is found in hot and dry rock (HDR), and the total resources distributed at depths of 3-10 km are 20.9×106 EJ. Most HDR projects are developed in granite formations and understanding and control of the energy consumption in per
Externí odkaz:
https://doaj.org/article/375f28a71b4549d2a3d54fd96afaaec9
Autor:
Soares Guilherme C., Hokka Mikko
Publikováno v:
EPJ Web of Conferences, Vol 250, p 01015 (2021)
Simultaneous full-field strain and temperature measurements were used to monitor tension Split Hopkinson Pressure Bar (SHPB) tests at elevated temperatures. A direct heating system was used to increase the specimen temperature up to 1350 °C. Digital
Externí odkaz:
https://doaj.org/article/37c2573442aa4d688e4b32e93e7e7b47
Publikováno v:
EPJ Web of Conferences, Vol 250, p 02034 (2021)
This study presents a numerical analysis of failure in pultruded glass fibre reinforced polymer (GFRP) with three reinforcement layers, subjected to out-of-plane compressive loadings at low and high strain rates (10-3 s-1 and 103 s-1). The simulation
Externí odkaz:
https://doaj.org/article/f37f3b67daff4c5b9bcd2069f6649e62
Publikováno v:
EPJ Web of Conferences, Vol 250, p 03011 (2021)
Metastable austenite containing steels, i.e., steels capable of undergoing solid-state phase transformation from austenite to α´-martensite during plastic deformation, offer a very good combination of ductility, strength, and above all, exceptional
Externí odkaz:
https://doaj.org/article/c45cc5713bbf4a29888193ddd376f604
Publikováno v:
EPJ Web of Conferences, Vol 183, p 02026 (2018)
This paper presents an improved experimental setup for high strain rate testing based on the modified Tensile Hopkinson Split Bar device developed previously at TUT. The test setup can be used to study the effects of a sudden large change in the stra
Externí odkaz:
https://doaj.org/article/5c0de5dc7b414a3d9fd9f5e234f9334b
Publikováno v:
EPJ Web of Conferences, Vol 183, p 03009 (2018)
This paper presents an experimental study of the effects of dynamic strain aging on the mechanical behavior of selected high carbon and chromium-manganese steels in dynamic loading condition. In ferritic-pearlitic steels, the dynamic strain aging is
Externí odkaz:
https://doaj.org/article/89449bcd018b436ab484a6a7c454c9b2
Autor:
Ramakrishnan KarthikRam, Hokka Mikko, Sarlin Essi, Kanerva Mikko, Kouhia Reijo, Kuokkala Veli-Tapani
Publikováno v:
EPJ Web of Conferences, Vol 183, p 02040 (2018)
Recent developments in the production of technical flax fabrics allow the use of sustainable natural fibres to replace synthetic fibres in the manufacture of structural composite parts. Natural fibre reinforced biocomposites have been proven to satis
Externí odkaz:
https://doaj.org/article/3f8f21385703483c811e17bdd54b7341
Publikováno v:
In Geomechanics for Energy and the Environment December 2024 40
Publikováno v:
In Materials Science & Engineering A February 2025 923