Results 51 to 60 of about 16,551 (232)

FE-BE Coupling Methods for Elastoplasticity [PDF]

open access: yesCommunications in Numerical Methods in Engineering, 1997
Summary: Nonlinear physical systems of infinite extent are conveniently modelled using FE-BE coupling methods. By the combination of both methods, suitable use of the advantages of each one may be obtained. Several possibilities of FEM-BEM coupling and their performance in some practical cases are discussed in this paper.
Perera, R., Alarcón, E.
openaire   +2 more sources

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

open access: yesDeep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun   +3 more
wiley   +1 more source

Strength of earth dams considering elastic-plastic properties of soil

open access: yesMagazine of Civil Engineering, 2021
The paper provides a detailed analysis of known publications devoted to various models and methods, as well as the results of the study of the stress state of structures, taking into account the elastoplastic properties of soil.
Mirsaidov Mirziyod   +2 more
doaj   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

open access: yesDeep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza   +4 more
wiley   +1 more source

A meso elastoplastic constitutive model for polycrystalline metals based on equivalent slip systems with latent hardening

open access: yes, 1998
A meso material model for polycrystalline metals is proposed, in which the tiny slip systems distributing randomly between crystal slices in micro-grains or on grain boundaries are replaced by macro equivalent slip systems determined by the work ...
Liang, NG (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

An approach to elastoplasticity at large deformations [PDF]

open access: yesEuropean Journal of Mechanics - A/Solids, 2013
Finite plasticity theories are still a subject of controversy and lively discussions. Among the approaches to finite elastoplasticity two became especially popular. The first, implemented in the commercial finite element codes, is based on the introduction of a hypoelastic constitutive law and the additive elastic-plastic decomposition of the ...
openaire   +3 more sources

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

An elastoplastic constitutive relation of whisker-reinforced composite for meso damage: Part II - failure surfaces

open access: yes, 2000
An elastoplastic constitutive relation of whisker-reinforced composite was derived in Part I of this work [H.Q. Liu, N.G. Liang, An elastoplastic constitutive relation of whisker-reinforces composite for meso damage: Part I - formulation, J.
Liu, HQ (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100080, Peoples R China.   +2 more
core   +1 more source

Effect of interface edge angle on stress distribution near the interface edge of bonded dissimilar materials

open access: yesMechanical Engineering Journal, 2019
This study investigates the effects of interface edge configuration on the stress distribution near the edge of a ceramics/metal joint system interface using numerical thermal elastoplastic analysis. Finite element bonded dissimilar models were employed,
Syunsuke MURAOKA   +4 more
doaj   +1 more source

Topology Optimization of Elastoplastic Behavior Conditions by Selectively Suppressing Plastic Work

open access: yesMathematics, 2020
This work conducted topology optimization with an implicit analysis of elastoplastic constitutive equation in order to design supporting structures for unexpected heavy loading conditions.
Eun-Ho Lee, Tae-Hyun Kim
doaj   +1 more source

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