Vietnam Journal of Mechanics
ACI (2018-2022)
0866-7136
Việt Nam
Cơ quản chủ quản: Viện Hàn lâm Khoa học và Công nghệ Việt Nam
Lĩnh vực:
Các bài báo tiêu biểu
Cyclic behavior and energy approach of the fatigue of shape memory alloys
Tập 31 Số 3-4 - 2009
This paper presents an energy-based low-cycle fatigue criterion that can be used in analyzing and designing structures made from shape memory alloys (SMAs) subjected to cyclic loading. Experimentally, a response similar to plastic shakedown is observed: during the first cycles the stress-strain curve shows a hysteresis loop which evolves during the first few cycles before stabilizing. By adopting ...... hiện toàn bộ
#cyclic loading #residual strain #internal stress #dissipation #fatigue.
Nonlinear postbuckling of eccentrically stiffened functionally graded plates and shallow shells
Tập 33 Số 3 - 2011
The paper deals with the formulation of governing equations of eccentrically stiffened functionally graded plates and shallow shells based upon the classical shell theory and the smeared stiffeners technique taking into account geometrical nonlinearity in Von Karman-Donnell sense. Material properties are assumed to be temperature-independent and graded in the thickness direction according to a sim...... hiện toàn bộ
#functionally graded material #plates #shallow shells #stiffeners #upper and lower buckling loads #nonlinear postbuckling
Duality in the analysis of responses to nonlinear systems
Tập 32 Số 4 - 2010
The paper provides a new view on the averaging procedure and equivalent linearization in the study of nonlinear mechanics. It is shown that the duality of those techniques can be used to obtain better approximate solutions or to separate the original nonlinear systems subjected to periodic and random excitations into deterministic and stochastic ones.
An edge-based smoothed finite element for buckling analysis of functionally graded material variable-thickness plates
Tập 43 Số 3 - 2021
The paper aims to extend the ES-MITC3 element, which is an integration of the edge-based smoothed finite element method (ES-FEM) with the mixed interpolation of tensorial components technique for the three-node triangular element (MITC3 element), for the buckling analysis of the FGM variable-thickness plates subjected to mechanical loads. The proposed ES-MITC3 element is performed to eliminate the...... hiện toàn bộ
#buckling analysis #critical load #variable thickness plate #edge-based finite element method #ES-MITC3
Shock between absolutely solid body and elastic bar with the elastic viscous frictional resistance at the side
Tập 13 Số 2 - 1991
The problem was solved completely in this paper. In the technical point of view this is model of the problem about shock between hammer and pile.
Finite element analysis of laminated composite plates using high order shear deformation theory
Tập 29 Số 1 - 2007
A rectangular non-conforming element based on Reddy's higher-order shear deformation plate theory is developed. Although the plate theory is quite attractive but it could not be exploited as expected in finite-element analysis. This is due to the difficulties associated with satisfaction of inter-elemental continuity requirement and satisfy zero shear stress boundary conditions of the plate theory...... hiện toàn bộ
Non-linear dynamical analysis of imperfect functionally graded material shallow shells
Tập 32 Số 1 - 2010
Dynamical behaviors of functionally graded material shallow shells with geometrical imperfections are studied in this paper. The material properties are graded in the thickness direction according to the power-law distribution in terms of volume fractions of the constituents of the material. The motion, stability and compatibility equations of these structures are derived using the classical shell...... hiện toàn bộ
Dispersion equation of Rayleigh waves in transversely isotropic nonlocal piezoelastic solids half-space
Tập 41 Số 4 - 2019
This study is devoted to investigate the propagation of Rayleigh-type waves in transversely isotropic nonlocal piezoelastic half-space. When the stress-free boundary is maintained at charge-free condition, the dispersion equation for the propagation of Rayleigh waves at the free surface of transversely isotropic piezoelastic solids has been obtained. Based on the obtained dispersion equation, the...... hiện toàn bộ
#dispersion equation #nonlocal #piezoelastic
Dual approach to averaged values of functions: A form for weighting coefficient
Tập 37 Số 2 - 2015
Averaged values play major roles in the study of dynamic processes. The use of those values allows transforming varying processes to some constant characteristics that are much easier to be investigated. In order to extend the use of averaged values one may apply the dual approach which suggests a consideration of two different aspects of a problem in question. In this short communication the main...... hiện toàn bộ
#Weighting coefficient #averaged value #dual approach #Duffing oscillator
Free vibration analysis of 2-D FGM beams in thermal environment based on a new third-order shear deformation theory
Tập 40 Số 2 - 2018
Free vibration analysis of two-directional functionally graded material (2-D FGM) beams in thermal environment based on a new third-order shear deformation theory is presented. The material properties are assumed to be graded in both the thickness and longitudinal directions by a power law distribution, and they are considered to be temperature-dependent. Equations of motion, in which the shear ro...... hiện toàn bộ
#2-D FGM beam #temperature-dependent properties #new third-order shear deformation theory #shear rotation #free vibration analysis