Deformation

The nonlinear dynamic buckling responses of functionally graded graphene platelet reinforced composite (FG-GPLRC) cylindrical and sinusoid panels with porous core are presented in this paper. The governing formulations are established by applying the nonlinear higher-order shear deformation theory (HSDT).

10p viengfa 28-10-2024 1 1   Download

In the present paper, by using the higher-order shear deformation theory and the strain-displacement relationships of large deflection, the postbuckling analysis of the functionally graded graphene-reinforced composite laminated (FG-GRCL) parabola, sinusoidal, and cylindrical externally pressured panels is presented in detail.

10p viengfa 28-10-2024 2 1   Download

The linear buckling behavior of functionally graded cylindrical shells with porous core stiffened by spiral stiffeners under axial compression using the first-order shear deformation theory is presented in this paper.

9p viengfa 28-10-2024 1 1   Download

This article aims to introduce this important mathematical theory to the community of Vietnamese mathematicians in a hope to bring more attention of Vietnamese mathematicians and math students to this vibrant research area.

8p viling 11-10-2024 0 0   Download

This research employs a novel third-order shear deformation theory to investigate the static buckling and static bending behaviors of organic nanoplates, marking the first instance of such an approach being used. The formulas are computed using strain gradient theory to consider the impact of the size effect, where this size effect parameter is considered in both positive and negative cases.

15p vibecca 01-10-2024 2 0   Download

This research investigates the properties of concrete utilizing coal mine waste rock (CMWR) as a substitute for river sand. The workability of fresh concrete is assessed through slump tests, revealing a decrease in a slump as the percentage of CMWR replacement increases.

13p vibecca 01-10-2024 0 0   Download

This paper presents the free vibration and critical buckling analyses of porous plates based on the first-order shear deformation theory by the proposed three-node triangular element. The bending strain fields of the suggested element are enriched by the bubble node located at the centroid of the triangular element.

18p viyoko 01-10-2024 2 1   Download

This study introduces a novel Ritz approximation function to analyze the free vibrations of laminated composite shallow curved beams. The methodology utilizes polynomial functions-based Fibonacci series to develop the Ritz’s approximation function. The displacement field aligns with the high-order shear deformation theory designed explicitly for shallow curved beams.

18p viyoko 01-10-2024 5 1   Download

The main aim of this work is to use a finite element method (FEM) based on Shi’s third-order shear deformation plate theory (TSDT) to study the dynamic response of sandwich plates subjected to consecutive blast loading. The sandwich plate has an auxetic honeycomb core and two different functionally graded materials (FGMs) skin layers (so-called h-FGS plates).

14p viyoko 01-10-2024 2 1   Download

In this article, the first-order shear deformation theory (FSDT) and Navier’s solution are used to establish analytical solutions for analyzing the deflection and stresses of FGM sandwich plate structures resting on a Pasternak elastic foundation.

15p viyoko 01-10-2024 3 1   Download

This article introduces a finite element approach for examining the static bending behavior of composite plates. The method considers the variable mechanical characteristics of plates and utilizes an elastic foundation with varying stiffness values.

12p viyoko 01-10-2024 3 1   Download

In this paper the smoothed four-node element with in-plane rotations MISQ24 is combined with a C0-type higher-order shear deformation theory (C0 -HSDT) to propose an improved linear quadrilateral plate element for static and free vibration analyses of laminated composite plates.

12p vifilm 24-09-2024 3 1   Download

In this paper, free vibration of bidirectional functionally graded sandwich (BFGSW) beams is studied by using a finite element formulation. The beams made from three distinct materials are composed of three layers, a homogeneous core and two bidirectional FGM face layers with material properties varying in both the thickness and longitudinal directions by power gradation laws.

15p vifilm 24-09-2024 2 1   Download

We present a generalized three-variable high order shear deformation theory (THSDT) using isogeometric analysis (IGA) to analyze free vibration of functionally graded porous (FGP) plates reinforced by graphene platelets (GPLs) in this work. It is named as FGP-GPLs for a short. The proposed theory only has got three degrees of freedom (DOFs) per node as the same way of numerically solutions in three-dimensional (3D) solids.

16p vifilm 24-09-2024 2 2   Download

This paper presents a numerical approach for static bending and free vibration analysis of the functionally graded porous plates (FGPP) resting on the elastic foundation using the refined quasi-3D sinusoidal shear deformation theory (RQSSDT) combined with the Moving Kriging–interpolation meshfree method.

19p vifilm 24-09-2024 2 1   Download

Beam-column joints play an important role, affecting the earthquake response of reinforced concrete (RC) frames. This paper introduces the results of experimental research on the failure and deformation of the joints, as well as the causes of these behaviors.

8p viyoko 24-09-2024 4 1   Download

This paper introduces the shear lag effect, which is the phenomenon of nonlinear distribution in axial stress among the tube columns due to the difference in shear deformations of the structural system when subjected to lateral loads.

8p viyoko 24-09-2024 1 1   Download

This paper addresses the strength and deformation capacity of slender columns retrofitted by externally bonded Carbon Fiber-Reinforced Polymers (CFRP) subjected to seismic loading. The behaviour of RC columns depending on the CFRP confinement (carbon CFRP jacket) and on flexural reinforcement (carbon plates) was analysed by a nonlinear finite element method based on multilayer shell element and multifiber beams with plasticity and damage models.

7p viyoko 24-09-2024 2 1   Download

This study investigates the performance of prototype U-FREIs under cyclic loading by both experiments and FE analysis. In experiments, four prototype specimens with the same sizes in plan and two different values of shear modulus are produced, and then the characteristic properties including the horizontal stiffness as well as the energy dissipation capacity and the equivalent viscous damping are assessed.

10p viyoko 24-09-2024 2 1   Download

This paper presents the experimental results of researching on plastic shrinkage (plastic deformation) and the effect of curing methods on the process of plastic shrinkage at the early stages when self-compacting concrete (SCC) starts setting and develops the strength.

12p viyoko 24-09-2024 2 1   Download