Sharif Digital Repository

Analytical study on size-dependent static pull-in voltage of microcantilevers using the modified couple stress theory

Author

Baghani, M.

Pub. Year

2012

Subjects

Modified couple stress theory. / Pull-in voltage. / Analytical expressions. / Analytical solutions. / Design and optimization. / Experimental data. / Geometrical parameters. / Micro beams. / Micro-cantilevers. / Modified couple stress theories. / Modified variational iteration methods. / Small scale. / Small scale devices. / Static pull-in. / Mechanical properties. / Iterative methods.

Gaseous slip flow forced convection in microducts of arbitrary but constant cross section

Author

Baghani, M.

Pub. Year

2014

Subjects

Convection. / Knudsen number. / Forced convection. / Geometry. / Heat convection. / Least squares approximations. / Microchannels. / Arbitrary cross section. / Cylindrical coordinates. / Least-squares matching. / Slip boundary conditions. / Slip flow. / Temperature jump. / Thermal boundary conditions. / Boundary conditions.

Limit analysis of FGM circular plates subjected to arbitrary rotational symmetric loads using von-Mises yield criterion

Author

Baghani, M.

Pub. Year

2013

Subjects

Functionally graded. / Material behavior. / Nonlinear ordinary differential equation. / Numerical results. / Symmetric loadings. / Tresca yield criterion. / Variational iteration method. / Von mises criterion. / Iterative methods. / Ordinary differential equations. / Loading.

A finite deformation constitutive model for shape memory polymers based on Hencky strain

Author

Baghani, M.

Pub. Year

2014

Subjects

Continuum thermodynamics. / Finite deformation. / Finite element. / Hencky strain tensor. / Shape memory polymer. / Constitutive models. / Finite element method. / Polymers. / Shape memory effect. / Tensors. / Thermodynamics. / Finite deformations. / Hencky strains. / Multiplicative decomposition. / Shape memory polymers. / Thermo-mechanical loading. / Thermodynamics of irreversible process. / Two boundary value problems. / Three dimensional.

An analytical solution for shape-memory-polymer Euler-Bernoulli beams under bending

Author

Baghani, M.

Pub. Year

2014

Subjects

Mathematical techniques. / Polymers. / Structural optimization. / Analytic solution. / Curvature distributions. / Design and optimization. / Different boundary condition. / Euler Bernoulli beam theory. / Euler Bernoulli beams. / Shape memory polymers. / Thermomechanical cycles. / Shape memory effect.

Analysis of large amplitude free vibrations of clamped tapered beams on a nonlinear elastic foundation

Author

Baghani, M.

Pub. Year

2014

Subjects

Elastic foundation. / Large amplitude. / Tapered beams. / Variational iteration method.

Analytical solution for large amplitude vibrations of microbeams actuated by an electro-static force

Author

Baghani, M.

Publisher

Sharif University of Technology,

Pub. Year

2013

Subjects

Vibration analysis. / Accuracy assessment. / Variational Iteration Method. / Vibration. / Iterative methods. / Analytical studies. / Large amplitude vibrations. / Micro beams. / Second-order approximation. / Vibration amplitude. / Micro-beam. / Nonlinear. / Amplitude. / Analytical framework. / Compression. / Damping. / Deflection. / Experimental design. / Loading test. / Nonlinearity. / Radiative transfer. / Residual strength.

A large deformation framework for shape memory polymers: Constitutive modeling and finite element implementation

Author

Baghani, M.

Pub. Year

2013

Subjects

finite deformation. / Continuum thermodynamics. / Finite deformations. / Finite Element. / Numerical solution. / Shape memory polymers. / Constitutive models. / Deformation. / Finite element method. / Loading. / Polymers. / Shape memory effect. / Thermodynamics. / Three dimensional.

Application of the variational iteration method for nonlinear free vibration of conservative oscillators

Author

Baghani, M.

Pub. Year

2012

Subjects

Design and optimization. / Exact solution. / Free vibration. / Geometrical parameters. / Governing equations. / Homotopy analysis methods. / Non-linear free vibration. / Nonlinear conservative oscillators. / Numerical results. / Optimal values. / Variational iteration method. / Lagrange multipliers. / Nonlinear equations. / Runge Kutta methods. / Iterative methods. / Experimental design. / Lagrangian analysis. / Linearity. / Nonlinearity. / Numerical model. / Optimization. / Oscillation. / Vibration.

A semi-analytical study on helical springs made of shape memory polymer

Author

Baghani, M.

Pub. Year

2012

Subjects

Analytical method. / Analytical solutions. / Axial forces. / Circular cross-sections. / Cross section. / Curvature effect. / Cylindrical tubes. / Direct shear. / Exact solution. / Finite element programs. / Load-deflection response. / Numerical results. / Pitch effects. / Semi-analytical. / Shape memory polymers. / Small pitch. / Spring index. / Stress-free strains. / Torsional loadings. / Torsional response. / Helical springs. / Numerical analysis. / Shape memory effect. / Stress concentration. / Torsional stress. / Tubes (components) / Three dimensional.

A combined experimental and numerical study of the effect of surface roughness on nanoindentation

Author

Nazemian, M.

Publisher

World Scientific Publishing Co. Pte Ltd,

Pub. Year

2019

Subjects

Finite-element method. / Nanoindentation. / Atomic force microscopy. / Finite element method. / Mechanical properties. / MEMS. / Microelectromechanical devices. / Surface measurement. / Thin films. / Topography. / Experimental and numerical studies. / Finite element simulations. / Good compatibility. / Indentation depth. / Mechanical characterizations. / Micro electromechanical system (MEMS) / Nano electromechanical systems. / Three dimensional finite element model. / Surface roughness.

Direct pellet three-dimensional printing of polybutylene adipate-co-terephthalate for a greener future

Author

Karimi, A.

Pub. Year

2024

Subjects

Mechanical properties. / PBAT. / Biodegradability. / Biodegradable polymers. / Elastomers. / Glass transition. / Image enhancement. / Infill drilling. / Nozzles. / Pelletizing. / Tensile strength. / Thermoanalysis. / 3D-printing. / Biodegradable plastics. / Dynamic mechanical thermal analysis. / Material extrusion. / Nozzle temperature. / Polies (butylene adipate co terephthalate) / Polybutylene adipate. / Terephthalate. / Three-dimensional-printing. / Compressive strength.

A constitutive model for shape memory polymers with application to torsion of prismatic bars

Author

Baghani, M.

Pub. Year

2012

Subjects

Shape memory polymers. / Temperature rate. / Torsion. / Additive decomposition. / Circular tubes. / Evolution law. / Experimental data. / Heat transfer analysis. / Heating process. / Internal variables. / Material parameter. / Non-linear finite elements. / Prismatic bar. / Rectangular bar. / Second Law of Thermodynamics. / Shape memory. / Constitutive models. / Polymers. / Shape memory effect. / Temperature. / Thermodynamics. / Torsional stress. / Three dimensional.

A thermodynamically-consistent 3 D constitutive model for shape memory polymers

Author

Baghani, M.

Publisher

Elsevier,

Pub. Year

2012

Subjects

Finite element. / Shape memory polymers. / Additive decomposition. / Clausius-Duhem inequality. / Continuum thermodynamics. / Evolution equations. / Evolution law. / Experimental data. / Implicit form. / Internal variables. / Medical stent. / Multiaxial. / Numerical solution. / Second Law of Thermodynamics. / Small strains. / Thermo-mechanical loading. / Time-dependent. / Two boundary value problems. / Viscous effect. / Constitutive models. / Finite element method. / Functional polymers. / Shape memory effect. / Thermodynamics. / Three dimensional.

Large amplitudes free vibrations and post-buckling analysis of unsymmetrically laminated composite beams on nonlinear elastic foundation

Author

Baghani, M.

Pub. Year

2011

Subjects

Large amplitude vibration. / Analytical expressions. / Cubic nonlinearities. / Elastic foundation. / Free vibration. / Geometric non-linearity. / Governing equations. / Laminated composite beam. / Large amplitude. / Large amplitude free vibration. / Large amplitude vibrations. / Nonlinear elastic foundation. / Postbuckling. / Postbuckling analysis. / Strain-displacement relation. / Third-order. / Unsymmetrical laminated composite beam. / Variational iteration method. / Vibration amplitude. / Von Karman. / Buckling. / Composite beams and girders. / Delamination. / Iterative methods. / Laminated composites. / Laminating. / Nonlinear equations. / Plates (structural components) / Steel beams and girders. / Vibration analysis.

A viscoelastic-viscoplastic constitutive model considering damage evolution for time dependent materials: Application to asphalt mixes

Author

Shahsavari, H.

Publisher

SAGE Publications Ltd

Pub. Year

2016

Subjects

Asphalt mixes. / Asphalt. / Constitutive models. / Continuum damage mechanics. / Creep. / Differential equations. / Discrete event simulation. / Recovery. / Thermodynamics. / Viscoplasticity. / Asphalt mix. / Clausius-Duhem inequality. / Damage evolution. / Damage evolution equation. / Irreversible thermodynamics. / Viscoelastic. / Viscoplastic. / Viscoplastic constitutive modeling. / Viscoelasticity.

A finite deformation viscoelastic-viscoplastic constitutive model for self-healing materials

Author

Shahsavari, H.

Publisher

Institute of Physics Publishing,

Pub. Year

2016

Subjects

Constitutive model. / Hencky strain. / Viscoelastic-viscoplastic. / Constitutive models. / Creep. / Deformation. / Self-healing materials. / Strain. / Thermodynamics. / Viscoplasticity. / Clausius-Duhem inequality. / Continuum damage healing mechanics. / Deformation gradients. / Hencky strains. / Irreversible thermodynamics. / Viscoplastic. / Viscoplastic constitutive modeling. / Viscoplastic deformation. / Viscoelasticity.

Transient growth of a micro-void in an infinite medium under thermal load with modified Zerilli–Armstrong model

Author

Baghani, M.

Pub. Year

2016

Subjects

Thermal load. / Thermoanalysis. / Unloading. / Governing equations. / Numerical scheme. / Proportional loading. / Radial stress distribution. / Strain components. / Temperature increase. / Transient growth. / Transient thermal analysis. / Nonlinear equations.