Results 21 to 30 of about 16,551 (232)

Evaluation methods of elastoplastic response of components to earthquake motions (Consideration of elastoplastic behaviour on the response of single-degree-of-freedom systems)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
A constant ductility response spectrum (CDRS) readily provides the yield strength of a single-degree-of-freedom (SDF) system necessary to limit the ductility imposed by a ground motion to a specified value.
Ichiro TAMURA, Shinichi MATSUURA
doaj   +1 more source

A three-dimensional fractal model of the normal contact characteristics of two contacting rough surfaces

open access: yesAIP Advances, 2021
According to the common characteristics of elastic mechanics and plastic mechanics expressions, a new model of asperity elastic–plastic contact is developed.
Guosheng Lan   +5 more
doaj   +1 more source

Influence of constitutive model on calculation results of creep deformation response of notched specimen of GH4169 alloy

open access: yesJournal of Aeronautical Materials, 2021
In view of the creep deformation failure of areo-engine high temperature components, the elastoplastic and creep deformation response of GH4169 alloy smooth and notched plate specimens at 650 ℃ is calculated using elastoplastic coupled creep constitutive
HU Xianming   +3 more
doaj   +1 more source

Evaluation methods of elastoplastic response of components to earthquake motions (Dynamic Analysis of MDOF Systems using elastoplastic response spectrum)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
For seismic design of components, elastic response spectrum analysis, which is based on linear response using elastic response spectrum, is generally used as a dynamic analysis of multi-degree-of-freedom(MDOF) systems not only elastic response but also ...
Ichiro TAMURA, Shinichi MATSUURA
doaj   +1 more source

A Fractal Contact Model for Rough Surfaces considering the Variation of Critical Asperity Levels

open access: yesAdvances in Materials Science and Engineering, 2022
A contact model for rough surfaces based on the fractal theory is proposed in the present work. Firstly, the deformation of the material is divided into four stages: elastic deformation, the first elastoplastic deformation, the second elastoplastic ...
Yong Liu   +6 more
doaj   +1 more source

Anisotropic Antiplane Elastoplastic Problem [PDF]

open access: yesJournal of Siberian Federal University. Mathematics & Physics, 2020
In this work we solve an anisotropic antiplane elastoplastic problem about stress state in a body weakened by a hole bounded by a piecewise-smooth contour. We give the conservation laws which allowed us to reduce calculations of stress components to a contour integral over the contour of the hole.
Senashov, Sergei I.   +2 more
openaire   +2 more sources

A Variational Principle for Hardening Elastoplasticity [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2008
We present a variational principle governing the quasistatic evolution of a linearized elastoplastic material. In case of linear hardening, the novel characterization allows to recover and partly extend some known results and proves itself to be especially well-suited for discussing general approximation and convergence issues.
openaire   +5 more sources

Finite strain elastoplastic constitutive model of saturated soil

open access: yesShuiwen dizhi gongcheng dizhi
During the construction of urban underground engineering projects, soils are typically in a saturated state, and many underground engineering accidents are closely related to the large deformation behavior of saturated soils.
Tianci WENG, Yonglin XIONG, Zhe HAN
doaj   +1 more source

A New Elastoplastic Time-History Analysis Method for Frame Structures

open access: yesAdvances in Civil Engineering, 2020
This study aimed to analyze the formation and application of the time-domain elastoplastic response spectrum. The elastoplastic response spectrum in the time domain was computed according to the trilinear force-restoring model.
Qianqian Liang, Chen Zhao, Jun Hu
doaj   +1 more source

Elastoplastic model for saturated rock based on mixture theory

open access: yesYantu gongcheng xuebao, 2020
In order to avoid the difficulties in evaluating the Biot's coefficient value of Skempton's effective stress used to formulate nonlinear constitutive model, the engineering mixture theory is chosen to build the elastoplastic model for saturated rock ...
HU Ya-yuan
doaj   +1 more source

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