Results 11 to 20 of about 1,295,963 (213)

Fundamental investigation on free-form optimization of vibration lures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Lure fishing is a special fishing method that using artificial fishing lures as fish baits and has become more and more popular all over the world. Vibration lures are a regular item among fishing lures that perform vibration action in the water for ...
Jin-Xing SHI   +2 more
doaj   +1 more source

Closed-Form Solution for Circular Membranes under In-Plane Radial Stretching or Compressing and Out-of-Plane Gas Pressure Loading

open access: yesMathematics, 2021
The large deflection phenomenon of an initially flat circular membrane under out-of-plane gas pressure loading is usually involved in many technical applications, such as the pressure blister or bulge tests, where a uniform in-plane stress is often ...
Bin-Bin Shi   +3 more
doaj   +1 more source

Analysis of Stress State and Damage Characteristics of the Cement Sheath

open access: yesFrontiers in Energy Research, 2022
The sealing problem of the cement sheath often appears in gas wells for underground energy exploitation, especially when horizontal multistage fracturing technology is used in the shale gas industry.
Feng Xu   +7 more
doaj   +1 more source

Dynamic triaxial constitutive model for rock subjected to initial stress

open access: yesOpen Physics, 2020
Building on the existing model, an improved constitutive model for rock is proposed and extended in three dimensions. The model can avoid the defect of non-zero dynamic stress at the beginning of impact loading, and the number of parameters is in a ...
Li Junzhe   +4 more
doaj   +1 more source

Thermoelastic Model with Higher-order Time-derivatives and Two Phase-lags for an Infinitely Long Cylinder under Initial Stress and Heat Source [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In this work, a generalized higher-order time-derivatives model with phase-lags has been introduced. This model is applied to study the thermal heat problem of a homogeneous and isotropic long cylinder due to initial stress and heat source.
Anouar Saidi, Ahmed E. Abouelregal
doaj   +1 more source

Limestone Acoustic Emission Evolution Characteristics Under Different Experimental Loading and Unloading Conditions

open access: yesFrontiers in Physics, 2020
To study the acoustic emission evolution characteristics of saturated limestone under different loading and unloading paths, three cyclic loading and unloading tests were conducted with different loading rates and initial cyclic peak stresses, and ...
Jielin Li   +6 more
doaj   +1 more source

Identification of muscle activity in tongue motion during swallowing through medical image data

open access: yesJournal of Biomechanical Science and Engineering, 2021
This paper presents a formulation to identify muscle activities from the variation in shapes of organs during swallowing. We assume that each organ consists of a three-dimensional hyperelastic body, and the contraction movement of the muscle is caused by
Hideyuki AZEGAMI   +6 more
doaj   +1 more source

Effect of Initial Stress on the Dynamic Response of a Multi-Layered Plate-Strip Subjected to an Arbitrary Inclined Time-Harmonic Force

open access: yesInternational Journal of Applied Mechanics and Engineering, 2017
The forced vibration of a multi-layered plate-strip with initial stress under the action of an arbitrary inclined time-harmonic force resting on a rigid foundation is considered.
A. Daşdemir
doaj   +1 more source

Mathematical Model on Gravitational Electro-Magneto-Thermoelasticity with Two Temperature and Initial Stress in the Context of Three Theories

open access: yesMathematics, 2020
The main aim of this paper is to study two temperature thermoelasticity in a generalization form to solve the half-space problem of two dimensions under gravity, perturbed magnetic field, and initial stress.
Sayed M. Abo-Dahab   +3 more
doaj   +1 more source

Effect of initial stress on the reflection and transmission of shear horizontal waves at the interface between two transversely isotropic elastic half-spaces

open access: yesVietnam Journal of Mechanics
The phenomenon of reflection and transmission of shear wave (horizontally polarized) at an imperfect interface between two different transversely isotropic elastic half-spaces is investigated in this paper.
Do Xuan Tung
doaj   +1 more source

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