Results 11 to 20 of about 9,879 (243)

A HOMOGENIZATION TECHNIQUE FOR ELASTO-PLASTIC COMPOSITES [PDF]

open access: yesProceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), 2016
The present study proposes a homogenization technique for the estimation of the overall behavior of composite materials characterized by a nonlinear behavior. A mixed nonuniform TFA procedure is proposed in order to study the mechanical response of periodic composites characterized by linear isotropic hardening plasticity.
COVEZZI, FEDERICA   +3 more
openaire   +5 more sources

On homogenization of elasto-plasticity [PDF]

open access: yesJournal of Physics: Conference Series, 2005
Plasticity is a classic hysteresis phenomenon. We represent elasto-plasticity with kinematic strain-hardening for multiaxial systems via the differential inclusion a(d?/dt) ? b(d?/dt) ?IK(c? ? d?)???(with a, b, c, d constants ? 0); here IK is the indicator function of a (nonempty) closed convex set K of the space of symmetric 3 ? 3-deviators.
openaire   +3 more sources

Proposal of the buckling design method by elasto-plastic buckling analysis for steel containment vessel of nuclear power plant

open access: yesNihon Kikai Gakkai ronbunshu, 2020
One of the seismic design methods for the steel containment vessel (SCV) of nuclear power plant is established by the Japan Electric Association as JEAC 4601-2015: Technical code for aseismic design of nuclear power plants.
Takashi OKAFUJI   +6 more
doaj   +1 more source

A Critical Revisiting of Finite Elasto-Plasticity [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2015
We propose a new evolution model for large strain elasto-plasticity. In a quasi-static setting, the suggested model can be formulated as a variational evolution. We establish the existence of a closely related evolution in a regularized context. We then discuss how the proposed model performs in both a rigid-plastic and a one-dimensional setting and ...
Elisa Davoli, Gilles A. Francfort
openaire   +2 more sources

A New Unified Solution for Circular Tunnel Based on a Four-Stage Constitutive Model considering the Intermediate Principal Stress

open access: yesAdvances in Civil Engineering, 2018
Based on the triaxial test, the elasto-perfectly plastic strain-softening damage model (EPSDM) is proposed as a new four-stage constitutive model. Compared with traditional models, such as the elasto-brittle-plastic model (EBM), elasto-strain-softening ...
Liang Chen   +5 more
doaj   +1 more source

Elasto‐plastic deformation in a spherical pendulum [PDF]

open access: yesPAMM, 2003
AbstractHeavily loaded deformable structures performing rigid body motions may exhibit elastic as well as plastic strains, particularly when the elastic stiffness and the yield stress are considerably lowered by catastrophic environmental influences. The dynamic equations are derived from the Newton‐Euler equations.
Dibold, M., Gerstmayr, J., Irschik, H.
openaire   +2 more sources

Elasto-plastic Analysis of Thick Walled Tanks Subjected to Internal Pressure [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2009
In this article, the Elasto-plastic analysis of thick walled FG tanks subjected to internal pressure is elaborated. Today, thick walled tanks containing liquids with high pressure are used in the chemical industries.
Abbas Heydari, MohamadTaghi Kazemi
doaj  

Buckling resistance assessment of thin-walled open section element under pure compression

open access: yesMATEC Web of Conferences, 2016
The paper deals with the problem of buckling resistance determination in case of perforated thin-walled elements. Depending on element slenderness the limit load in compression mode may be determined taking into account elastic (LBA analysis), elasto ...
Piotrowski Andrzej   +4 more
doaj   +1 more source

Doing the plane dynamic elasto-plastic problem by the method of elastic root

open access: yesVietnam Journal of Mechanics, 1985
In this paper, the method of clastic root used to answer the plane dynamic elasto plastic problem, for the half of plane made by material according to the theory of small elasto-plastic deformation, on the boundary supporte1 degree loading of motion ...
Nguyen Dang Bich
doaj   +1 more source

Accounting of plastic deformations in the calculation of frames using the displacement method

open access: yesMagazine of Civil Engineering, 2023
Method for calculating statically indeterminate frames taking into account plastic deformations, which is based on the use of a schematized diagram of material with hardening is proposed.
Potapov Alexandr, Shturmin Sergei
doaj   +1 more source

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