Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Hirohiko Takuda"'
Publikováno v:
Advances in Mechanical Engineering, Vol 2 (2010)
The transportation mechanism of single solid particles in pulsating water flow in a vertical pipe was investigated by means of videography and numerical simulations. The trajectories of alumina particles were observed experimentally by stereo videogr
Externí odkaz:
https://doaj.org/article/798915712b464d73929d7fa4264c11da
Autor:
Masashi Oka, Hirohiko Takuda, Takayuki Hama, Hayashi Seiji, Yoshitaka Okitsu, Takuna Nishi, Kenji Takada, Takashi Matsuno
Publikováno v:
ISIJ International. 61(6):1971-1979
In this work, non-uniform deformation behavior of coarse-grained ultralow carbon steel was investigated under uniaxial tension and cyclic simple shear. A digital image correlation method was used to measure strain fields at the grain level. Heterogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac62929ca0be8205a5c88ccb9aba4faf
http://hdl.handle.net/2433/265345
http://hdl.handle.net/2433/265345
Publikováno v:
MATERIALS TRANSACTIONS. 61:941-947
In the present study, draw-bending tests were conducted to investigate the effects of holding time at the bottom dead center (holding-time dependency) and elapsed time after releasing from dies (elapsed-time dependency) on springback in steel, Al all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ba7e23a5f5ff4cd19cb1058b40a3447
https://doi.org/10.2320/matertrans.mt-m2019283
https://doi.org/10.2320/matertrans.mt-m2019283
Autor:
Hirohiko Takuda, Takayuki Hama, Hiroaki Takeshita, Masayoshi Ashida, Wataru Obana, Hitoshi Fujimoto
Publikováno v:
ISIJ International. 59:1304-1313
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::546d7583c9c68fedbda487a07f569c8a
https://doi.org/10.2355/isijinternational.isijint-2018-790
https://doi.org/10.2355/isijinternational.isijint-2018-790
Publikováno v:
International Journal of Plasticity. 115:111-131
Direct comparisons between crystal plasticity simulations and experiments dedicated to test a sample containing a small number of grains (oligocrystal), instrumented using full field measurement techniques (DIC, grid method), have demonstrated their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e312fdd9da71e398a1a605d9e25087
https://doi.org/10.1016/j.ijplas.2018.11.013
https://doi.org/10.1016/j.ijplas.2018.11.013
Publikováno v:
Experimental Thermal and Fluid Science. 96:1-10
In the metal forming industry, quench hardening is commonly used to strengthen steel products by rapidly cooling hot materials. One of the typical coolants used in the quench hardening process is an aqueous polymer solution. During the hardening proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b83fcc7095057e7e1f156e4f9aa52d7
http://hdl.handle.net/2433/237634
http://hdl.handle.net/2433/237634
Publikováno v:
Materials Science and Engineering: A. 725:8-18
Reverse loading from compression to tension was performed on a rolled AZ31 magnesium alloy sheet to systematically study the effects of twinning and detwinning on the stress and strain behaviors after stress reversal. A crystal plasticity finite-elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9708e428ed15b1d5fe358d02939deb1f
https://doi.org/10.1016/j.msea.2018.03.124
https://doi.org/10.1016/j.msea.2018.03.124
Publikováno v:
Procedia Manufacturing. 15:1808-1815
Evolution of plastic contour of a steel sheet was predicted using various crystal plasticity models, including a phenomenological and dislocation-based hardening model. The evolution of plastic contour was different depending on the model, but none o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cf2a32ec238cbd396942ce9074ee41b
http://hdl.handle.net/2433/235737
http://hdl.handle.net/2433/235737
Autor:
Kenta Morisawa, Keisuke Nagata, Takayuki Hama, Jun-ya Nakahara, Hitoshi Fujimoto, Hirohiko Takuda
Publikováno v:
ISIJ International. 58:140-145
This study investigates the heat transfer characteristics of a circular jet pointing upward that impinges on a moving hot steel sheet by using a laboratory-scale setup. The test liquid was water at 17°C, and the volumetric flow rate of the coolant w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::204ec8ff7e030e1dd47efe4ff88a69eb
https://doi.org/10.2355/isijinternational.isijint-2017-383
https://doi.org/10.2355/isijinternational.isijint-2017-383
Publikováno v:
ISIJ International. 58:704-713
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::062492224c08a46dc425baf5d3a35ca6
https://doi.org/10.2355/isijinternational.isijint-2017-612
https://doi.org/10.2355/isijinternational.isijint-2017-612