A5025996927- Composite Structure Analysis and Optimization
- Structural Analysis and Optimization
- Structural Analysis of Composite Materials
- Structural Load-Bearing Analysis
- Acoustic Wave Phenomena Research
- Numerical methods in engineering
- Vibration and Dynamic Analysis
- Ultrasonics and Acoustic Wave Propagation
- Dynamics and Control of Mechanical Systems
- Structural Health Monitoring Techniques
- Mechanical Behavior of Composites
- Fatigue and fracture mechanics
- Material Properties and Applications
- Geotechnical Engineering and Underground Structures
- Medical Image Segmentation Techniques
- Railway Engineering and Dynamics
- Composite Material Mechanics
- Elasticity and Material Modeling
- Structural Engineering and Vibration Analysis
- Photonic and Optical Devices
- Machine Learning in Materials Science
- Electromagnetic Simulation and Numerical Methods
- Extraction and Separation Processes
- Acoustic Wave Resonator Technologies
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
Zhengzhou University
2025
WuXi AppTec (China)
2024
University of Leeds
2023
Southwest Jiaotong University
2019-2021
University of California, Los Angeles
1998-2015
Nanjing Tech University
2014
MingDao University
2006
American Society of Mechanical Engineers
2005
California State University Los Angeles
1996
University of California System
1991
An efficient and powerful technique has been developed to treat the problem of wave propagation along arbitrarily shaped single-mode dielectric waveguides with inhomogeneous index variations in cross-sectional plane. This is based on a modified finite-element method. Illustrative examples were given for following guides: (a) triangular fiber guide; (b) elliptical (c) single material (d) rectangular (g) optical stripline guide.
A constitutive relation for laminated orthotropic shells which includes transverse shear deformation is presented. This involves composite correction factors k112, k222 are determined from an analysis of plane waves in a plate with the same layered construction. The range applicability present theory and quantitative effect evinced problem concerned natural oscillations three-layered freely supported cylinder.
System of equations governing nonlinear bending plates consisting two or more bonded thin layers; effects both transverse and in-plane loading thermal gradients through plate thickness as well over faces are given; specialization for particular classes problems.
A solution method is presented for studying the vibrations of a laminated plate composed an arbitrary number bonded elastic, orthotropic layers. The analysis carried out within framework linear elasticity plane-strain behavior. essence discretization into arbitrarily large laminas, each which comprise separate entity. An approximate displacement field assumed lamina and characterized by discrete generalized coordinates at laminar bounding planes its midsurface. algebraic eigenvalue problem...
Using the finite element technique, a numerical method is devloped so that one may obtain propagation characteristics of optical waves along guiding structures whose cores be arbitrary cross-sectional shape and material media inhomogeneous in more than transverse direction. Several specific examples are given results compared with those obtained by other exact or approximate methods. Very close agreement was found. The developed here can easily applied to many important problems dealing...
Plane strain edge vibrations or end modes in laminated composite plates are investigated by means of finite elements. This method is capable modeling the behavior any laminate construction whose properties completely anisotropic within plane. Two eigenvalue problems involving nonsymmetric matrices derived. The form each problem depends on parameter chosen for eigenvalue, i.e., either frequency axial wave number. Orthogonality relations discussed. Examples two four-ply given as illustrations....
In this paper, the first in a series of three, procedure based on semi-analytical finite elements is presented for constructing Saint-Venant solutions extension, bending, torsion, and flexure prismatic cylinder with inhomogeneous, anisotropic cross-sectional properties. Extension-bending-torsion involve stress fields independent axial coordinate their displacements may be decomposed into two distinct parts which are called primal field warpages herein. The embodies essence kinematic...
The attenuation of self-equilibrated edge stress states into the interior a laminated plate composed an arbitrary number bonded, elastic, anisotropic layers is investigated in context Saint-Venant’s principle using exponential decay results Toupin, Knowles, and Horgan. To model plate’s behavior, semianalytical method used with finite element interpolations over thickness interior. formulation leads to second-order algebraic eigensystem whose eigenvalues are characteristic inverse lengths,...
A global local finite element method is developed for axisymmetric scattering of a steady, compressive, incident elastic wave in homogeneous, isotropic host medium by an inclusion. The inclusion may be arbitrary with respect to its geometry and can have inhomogeneous, anisotropic material properties. Examples on spheroidal circular cylindrical inclusions are given. Comparison current data available results show good agreement.
Cross-sectional properties of a prismatic inhomogeneous, anisotropic cylinder are determined from Saint-Venant solutions for extension-bending-torsion and flexure, whose method construction was presented in previous paper. The coupling extensional, bending, twisting deformations due to anisotropy inhomogeneity leads some very interesting features. Herein, it is shown that an cross-sectional plane not material symmetry plane, distinct modulus-weighted compliance-weighted centroids principal...
The construction of a steady-state Green’s function for laminated anisotropic circular cylinder is presented herein. cylinder’s profile through its depth consists any number perfectly bonded, uniform thickness concentric cylindrical layers, with each able having own distinct elastic cylindrically properties. predicated on the superposition numerically generated modal solutions from system equations based semi-analytical finite element formulation. Two methods are proposed construction, both...
A finite-element method is presented for determining the vibrational characteristics of a circular cylinder composed bonded piezoelectric layers. Finite-element modeling occurs in radial direction only using quadratic polynomials and variationally derived partial differential equations are functions hoop axial coordinates (θ, z) time t. Using solution form Q exp {i(ξz + nθ ωt)}, with as nodal amplitudes, leads to an algebraic eigensystem where any one three parameters (n, ξ, ω),...