Zobrazeno 1 - 10
of 398
pro vyhledávání: '"Hideo KOGUCHI"'
Autor:
Chonlada Luangarpa, Hideo Koguchi
Publikováno v:
Journal of Applied and Computational Mechanics, Vol 6, Iss Special Issue, Pp 1364-1370 (2020)
Singular stress fields in three-dimensional piezoelectric bonded joints are investigated at a vertex and along a free edge (the singular line) of an interface. Two perfectly bonded joints, which are different in the side surface shapes, are considere
Externí odkaz:
https://doaj.org/article/0c7ddab2d7264c09a4291fb44b747bfe
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 853, Pp 17-00198-17-00198 (2017)
Singular stress and electric displacement fields occur at the vertex of interface in piezoelectric joints under an external loading. It can be expected that concentrated electric displacements causes large electric fields in an adjacent space and ele
Externí odkaz:
https://doaj.org/article/1616615e8a844cde9eaadc651dc18015
Autor:
Hideo KOGUCHI, Yusuke TANAKA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 83, Iss 845, Pp 16-00368-16-00368 (2016)
In recent advanced semiconductor products, elements of thickness and width are frequently in nanoscale. As the size of elements reduces to nanometer, a ratio of surface to volume increases. Surface properties, such as surface stresses and surface ela
Externí odkaz:
https://doaj.org/article/ba769a6cbb6a4d6ea4d23d7a40a81dbc
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 82, Iss 833, Pp 15-00372-15-00372 (2015)
Singular stress occurs at the vertex of interface in three-dimensional joint structures under an external force and a temperature variation. It is very important to estimate the intensity of singularity for evaluating the strength of joints. Until no
Externí odkaz:
https://doaj.org/article/d7e80795fb324b99b3be7adcfcfd0121
Autor:
Takao HAYASHI, Hideo KOGUCHI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 831, Pp 14-00516-14-00516 (2015)
In the present paper, an adhesive contact between a half-region with axisymmetric wavy surface and a rigid indenter with a profile described by a power-law is analyzed. At first, solutions with and without the adhesive force are derived using the Gud
Externí odkaz:
https://doaj.org/article/585860bbd7cd4c6591ed030147f0bc97
Autor:
Yamato MUNETAKA, Hideo KOGUCHI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 824, Pp 14-00686-14-00686 (2015)
When two parallel plates confining a viscous fluid in a narrow gap between their plates separate from each other at a constant velocity, the free surface of the fluid disturbs like a dendrite or fingers. This phenomenon is referred to as meniscus ins
Externí odkaz:
https://doaj.org/article/5b38881286684e5b8347cedcb2661b5b
Autor:
Hideo KOGUCHI, Naoki KIMURA
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 816, Pp SMM0220-SMM0220 (2014)
Stress singularity usually occurs at a vertex of interface in a three-dimensional joint. Crack frequently initiates at a vertex and a joint fails under an external force and a thermal load. In the present paper, stress distribution near a small crack
Externí odkaz:
https://doaj.org/article/6aff9973ee844fd9a2ba9bd9bf27cda0
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 80, Iss 809, Pp CM0017-CM0017 (2014)
This paper presents stress singularity analysis using three-dimensional Akin singular element. In case that Akin singular element is employed, it is necessary to know order of singularity before stress analysis. However, in case of three-dimensional
Externí odkaz:
https://doaj.org/article/889d5ff2c529494798789138595c4d96
Autor:
Setyamartana Parman, Hideo Koguchi
Publikováno v:
Shock and Vibration, Vol 6, Iss 1, Pp 11-27 (1999)
A three-dimensional rest-to-rest attitude maneuver of flexible spacecraft equipped by on-off reaction jets is studied. Equations of motion of the spacecraft is developed by employing a hybrid system of coordinates and Lagrangian formulation. The fini
Externí odkaz:
https://doaj.org/article/b5921e1f95514de1b0c85982fb07b22c
Publikováno v:
Journal of the Mechanical Behavior of Materials. 31:755-766
In this study, singularity fields at the interface corners of piezoelectric-brass unimorphs are investigated. Two models differing in side surface geometry (step and flat surfaces) are analyzed to study the singularity effect on mechanical (stress–
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::953026cf127d48dd066d31a045a462b6
https://doi.org/10.1515/jmbm-2022-0254
https://doi.org/10.1515/jmbm-2022-0254