Results 21 to 30 of about 156,172 (278)

Stress Relaxation Behaviour and Creep Constitutive Equations of SA302Gr.C Low-Alloy Steel

High Temperature Materials and Processes, 2018
In order to study the stress relaxation behaviour of SA302Gr.C low-alloy steel, the stress relaxation experiments were performed at the temperatures of 400, 500 and 620 °C with the constant strain of 0.5 %.
Shen Wenfei, Zhang Chi, Zhang Liwen, Yang Yang, Zhu Zhi   +4 more
doaj   +1 more source

Development of constitutive equations for hot working of titanium matrix composites [PDF]

MATEC Web of Conferences, 2020
This research is devoted to modelling the viscoplastic deformation behaviour and microstructure evolution of particle reinforced titanium matrix composites (TMCs) at hot working conditions.
Du Lihua, Shi Zhusheng, Han Yuanfei, Shao Jie, Zheng Kailun, Li Yong, Lu Weijie   +6 more
doaj   +1 more source

Weierstrass's criterion and compact solitary waves [PDF]

, 2007
Weierstrass's theory is a standard qualitative tool for single degree of freedom equations, used in classical mechanics and in many textbooks. In this Brief Report we show how a simple generalization of this tool makes it possible to identify some ...
Giuseppe Gaeta, Giuseppe Saccomandi, I. Ferrari, M. Peyrard, Michel Destrade, P. Rosenau   +5 more
core   +5 more sources

On the out-of-plane deviation of the bending deformation states of moderately thick bars of asymmetric cross-sections

Engineering Transactions
A characteristic feature of the six-parameter theories of bars is a coupled form of the constitutive equations; in particular the equations linking transverse forces with transverse shear deformations cannot be, in general, decoupled, keeping a ...
Radosław Czubacki, Zofia Kozyra, Tomasz Lewiński   +2 more
doaj   +1 more source

A Solution Set-Based Entropy Principle for Constitutive Modeling in Mechanics

, 2018
Entropy principles based on thermodynamic consistency requirements are widely used for constitutive modeling in continuum mechanics, providing physical constraints on a priori unknown constitutive functions. The well-known M\"uller-Liu procedure is based
Cheviakov, A. F., Heß, J.
core   +1 more source

Generalized diffusion theory of micromorphicly deformable particle-fluid continuum and bubble-liquid two-phase flows

Vietnam Journal of Mechanics, 1993
In the paper [1] the basic concepts and equations were derived for the micromorphicly deformable particle-fluid two-phase flows, the constitutive equations have been constructed.
Nguyen Van Diep
doaj   +1 more source

Coupled systems of fractional equations related to sound propagation: analysis and discussion [PDF]

, 2012
In this note we analyse the propagation of a small density perturbation in a one-dimensional compressible fluid by means of fractional calculus modelling, replacing thus the ordinary time derivative with the Caputo fractional derivative in the ...
Diethelm K., Federico Polito, Fellah Z. E. A., Haubold H. J., Kilbas A. A., Podlubny I., Roberto Garra   +6 more
core   +1 more source

Mixed FEM for Shells of Revolution Based on Flow Theory and its Modifications

Structural Mechanics of Engineering Constructions and Buildings
For describing elastoplastic deformation, three versions of constitutive equations are used. The first version employs the governing equations of the flow theory.
Rumia Z. Kiseleva, Natalia A. Kirsanova, Anatoliy P. Nikolaev, Yuriy V. Klochkov, Vitaliy V. Ryabukha   +4 more
doaj   +1 more source

Transient thermal regime trough the constitutive matrix applied to asynchronous electrical machine using the cell method

Open Physics, 2018
In this paper, a new constitutive matrix for thermal conduction in transient thermal regime is developed and tested. We use cell method as a numerical method that is included in finite formulation methodology.
González-Domínguez Pablo Ignacio, Monzón-Verona José Miguel, García-Alonso Santiago   +2 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source