Papers by Akihide Saimoto
The Proceedings of Conference of Kyushu Branch, 2018
The Proceedings of Conference of Kyushu Branch, 2018
Proceedings of the 1992 Annual Meeting of JSME/MMD, 2006
Proceedings of the 1992 Annual Meeting of JSME/MMD, 2006
The proceedings of the JSME annual meeting, 2000
Abstract; The applicability of thermal stress cleaving (TSC) for relatively thich brittle materia... more Abstract; The applicability of thermal stress cleaving (TSC) for relatively thich brittle material is studied. The crack opening is observed for two different shapes of initial cracks, namely the semi-circular surface crack and through-thickness crack, under the mode I thermal ...
Proceedings of the Asian Pacific Conference on Fracture and Strength and International Conference on Advanced Technology in Experimental Mechanics, 2001
A fracture of brittle solids under compression was discussed. Special attention was paid to the i... more A fracture of brittle solids under compression was discussed. Special attention was paid to the influence of confining stress and the presence of free boundary on a behavior of crack growth. Cracks tend to grow unstably leading a brittle splitting when they are loaded by longitudinal compression together with lateral tension. When the lateral stress is also compression, cracks always grow in a stable fashion. Presence of free boundaries near the crack tend to increase its stress intensity. This increase is mainly caused by the outward bending deformation. A possible rnechanism of pseudo ductile deformation (shear rupture) experienced in the compression experiments of rocks was discussed in detail as a result of interference of an echelon of cracks.
The Proceedings of Conference of Kyushu Branch, 2016
The Proceedings of Conference of Kyushu Branch, 2016
The Proceedings of Conference of Kyushu Branch, 2012
The Proceedings of Conference of Kyushu Branch, 2011
The Proceedings of The Computational Mechanics Conference, 2013
The Proceedings of Conference of Kyushu Branch, 2017
Key Engineering Materials, 2017
In a standard body force method analysis, a mesh division is required to define the boundary of a... more In a standard body force method analysis, a mesh division is required to define the boundary of a problem and to solve a governing equation using discretization procedure. However, in the present study, a moving least square strategy is introduced to define a weight function for the density of body force doublet and therefore a crack analysis is carried out without providing a standard mesh-division. Hence, the standard crack face elements are not required at all. A variety of 3D crack problems can be analyzed simply by providing a data that only de nes a crack front. Besides the nodal points for crack front, several internal nodes are generated on the crack face to represent a distribution of unknown function. At the internal nodes, an unknown variable is assigned which uniquely de ne a distribution of the relative crack face displacement. In the present approach, a crack problem is formulated as a singular integral equation whose unknown is a value of the weight function at the in...
Transactions of the Japan Society of Mechanical Engineers Series A, 1990
Fatigue & Fracture Mechanics: 33rd Volume
The statute also provides that an individual who has obtained tenure elsewhere is eligibile for t... more The statute also provides that an individual who has obtained tenure elsewhere is eligibile for tenure in the new school system after only two years. Id. Id. 3, set out at note 8 supra. " For a discussion of who qualifies as a "teacher" for purposes of Ohio Revised Code section 3319.11, see notes 55-62, 78-87 infra and accompanying text. OHIO REV. CODE ANN. § 3319.08 (Page 1978), set out at note 1 supra.
Computational Mechanics, 1997
A higher order boundary element, suitable for the body force method (BFM) calculation of 2D or 3D... more A higher order boundary element, suitable for the body force method (BFM) calculation of 2D or 3D notch problems, is proposed. The interpolation function used in the present element is defined so as to express the exact form of the basic density function in the problem of an elliptic hole under remote load. The availability of the present element in
Transactions of the Japan Society of Mechanical Engineers Series A, 1996
Key Engineering Materials, 2019
A method of analysis for calculating a precise distribution of a stress intensity factor alonga f... more A method of analysis for calculating a precise distribution of a stress intensity factor alonga front of 3D crack was improved by introducing a closed-form integral. In the present study, the crackface is discretized with number of triangular boundary elements on which the weighting function ofbody force doublet varies linearly with coordinate variables. A closed form solution of a resultant forceover an arbitrary planar-triangular area due to a presence of an isolated point force was derived andused to satisfy a stress boundary condition of a creased crack problem. In principle, arbitrary shaped3D cracks which may contain asperities and multiple creased lines in its face can be solved by presentapproach.
The Proceedings of Conference of Kyushu Branch, 2015
Transactions of the Japan Society of Mechanical Engineers Series A, 2000
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Papers by Akihide Saimoto