The Experts below are selected from a list of 196365 Experts worldwide ranked by ideXlab platform
Yutaka Miyamoto - One of the best experts on this subject based on the ideXlab platform.
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Limit angular velocity of rotating disc with unified yield criterion
International Journal of Mechanical Sciences, 2001Co-Authors: Hong Hao, Yutaka MiyamotoAbstract:Plastic Limit analysis of a rotating solid or annular disc with variable thickness is presented in terms of a unified yield criterion (UYC). Stress distributions of the discs in plastic Limit state corresponding to different yield curves are deduced. Upper and lower bounds of the plastic Limit Solutions are derived by selecting a weighting coefficient in the unified yield criterion. Stress redistribution is solved when the stress field violates yield criterion locally. Limit angular velocity as well as the stress distributions with respect to three special criteria, namely the Tresca criterion, the Mises criterion (close form Solution) and the Yu criterion are illustrated and compared. The influences of yield criterion as well as the thickness on plastic Limit Solution of a rotating disc are demonstrated and discussed.
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plastic Limit analyses of circular plates with respect to unified yield criterion
International Journal of Mechanical Sciences, 1998Co-Authors: Ma Guowei, Yutaka Miyamoto, Shoji Iwasaki, Hideaki DetoAbstract:Plastic Limit analysis of a circular plate under uniform transverse loading is presented in terms of an unified yield criterion (UYC). Exact and unified Solutions of load-carrying capacities, moment fields and velocity fields for simply supported circular plate, clamped circular plate and annular plate in plastic Limit state are derived. Moment fields of the three typical circular plates correspond to different distribution fields on the yield curves. Maximum and minimum plastic Limit Solutions are deduced for the three types of circular plates by selecting the weighted coefficients with upper and lower bound values in the unified yield criterion. Moment fields and velocity fields with respect to the three special criteria, namely the Tresca criterion, the Mises criterion (close-form Solution) and the twin shear stress criterion are illustrated and compared. The paper presents an effective analytical method to compute the exact plastic Limit Solution for circular plates in terms of a piecewise linear yield criterion.
Hideaki Deto - One of the best experts on this subject based on the ideXlab platform.
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plastic Limit analyses of circular plates with respect to unified yield criterion
International Journal of Mechanical Sciences, 1998Co-Authors: Ma Guowei, Yutaka Miyamoto, Shoji Iwasaki, Hideaki DetoAbstract:Plastic Limit analysis of a circular plate under uniform transverse loading is presented in terms of an unified yield criterion (UYC). Exact and unified Solutions of load-carrying capacities, moment fields and velocity fields for simply supported circular plate, clamped circular plate and annular plate in plastic Limit state are derived. Moment fields of the three typical circular plates correspond to different distribution fields on the yield curves. Maximum and minimum plastic Limit Solutions are deduced for the three types of circular plates by selecting the weighted coefficients with upper and lower bound values in the unified yield criterion. Moment fields and velocity fields with respect to the three special criteria, namely the Tresca criterion, the Mises criterion (close-form Solution) and the twin shear stress criterion are illustrated and compared. The paper presents an effective analytical method to compute the exact plastic Limit Solution for circular plates in terms of a piecewise linear yield criterion.
Hong Hao - One of the best experts on this subject based on the ideXlab platform.
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Limit angular velocity of rotating disc with unified yield criterion
International Journal of Mechanical Sciences, 2001Co-Authors: Hong Hao, Yutaka MiyamotoAbstract:Plastic Limit analysis of a rotating solid or annular disc with variable thickness is presented in terms of a unified yield criterion (UYC). Stress distributions of the discs in plastic Limit state corresponding to different yield curves are deduced. Upper and lower bounds of the plastic Limit Solutions are derived by selecting a weighting coefficient in the unified yield criterion. Stress redistribution is solved when the stress field violates yield criterion locally. Limit angular velocity as well as the stress distributions with respect to three special criteria, namely the Tresca criterion, the Mises criterion (close form Solution) and the Yu criterion are illustrated and compared. The influences of yield criterion as well as the thickness on plastic Limit Solution of a rotating disc are demonstrated and discussed.
Jonathan E Halpert - One of the best experts on this subject based on the ideXlab platform.
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quantum dot tandem solar cells based on a Solution processed nanoparticle intermediate layer
ACS Applied Materials & Interfaces, 2020Co-Authors: Yutao Wang, Sunil B Shivarudraiah, Jianyu Yuan, Xinwei Guan, Xun Geng, Adnan Younis, Shujuan Huang, Jonathan E HalpertAbstract:Tandem cells are one of the most effective ways of breaking the single junction Shockley–Queisser Limit. Solution-processable phosphate-buffered saline (PbS) quantum dots are good candidates for pr...
Song Liu - One of the best experts on this subject based on the ideXlab platform.
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Concentration of mass in the pressureless Limit of Euler equations for power law
Nonlinear Analysis: Real World Applications, 2019Co-Authors: Muhammad Ibrahim, Fujun Liu, Song LiuAbstract:Abstract In this paper, the Limiting behavior of Riemann Solutions to the Euler equations for compressible fluids in power law is studied as the adiabatic exponent goes to zero. We show that the Limit Solution forms the delta wave of the zero pressure gas dynamics in the distribution sense. At the end of the paper, we also give some numerical results to present the phenomena of concentration.