Results 1 to 10 of about 13,308 (284)

Three Kinds օf Porosity օn Functionally Graded Porous Beams

open access: yesJournal of Architectural and Engineering Research, 2022
In this paper, the effects of three types of porosity on bending behavior of functionally graded porous (FGP) beams are studied. The finite element procedure is established and based on the simple Timoshenko beam theory.
Lan Hoang That Ton
doaj   +2 more sources

Numerical Investigation on Free Vibration Response of Bi-Directional Porous Functionally Graded Circular/Annular Plates [PDF]

open access: yesMechanics of Advanced Composite Structures, 2022
The article presents non-axisymmetric free vibration results of porous bi-directional functionally graded (BDFG) plates. The bi-directional grading index changes with the thickness (z-) and radial (r-) directions and porosity distributions are classified
Dilsukh Vasara   +3 more
doaj   +1 more source

Effect of Porosity and Hygrothermal Environment on FGP ‎Hollow Spheres under Electromechanical Loads [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
Semi-analytical studies for the porosity action of a hollow sphere made of functionally graded piezoelectric material are presented. A semi-analytical technique for radial displacement is presented.
Rania Tantawy, Ashraf Zenkour
doaj   +1 more source

Analytical Study of Free Vibration Characteristics For Sandwich Cylindrical Shell With Single Phase Metal Core [PDF]

open access: yesEngineering and Technology Journal, 2023
This paper presents an analytical investigation of the nonlinear vibration characteristics of a single-phase functionally graded cylindrical shell panel with various porous metal cores.
Ahmed Mouthanna   +2 more
doaj   +1 more source

Hygro-Thermal Vibrations of Porous FG Nano-Beams Based on Local/Nonlocal Stress Gradient Theory of Elasticity

open access: yesNanomaterials, 2021
In this manuscript the dynamic response of porous functionally-graded (FG) Bernoulli–Euler nano-beams subjected to hygro-thermal environments is investigated by the local/nonlocal stress gradient theory of elasticity.
Rosa Penna   +3 more
doaj   +1 more source

Porous metal implants: processing, properties, and challenges

open access: yesInternational Journal of Extreme Manufacturing, 2023
Porous and functionally graded materials have seen extensive applications in modern biomedical devices—allowing for improved site-specific performance; their appreciable mechanical, corrosive, and biocompatible properties are highly sought after for ...
Amit Bandyopadhyay   +4 more
doaj   +1 more source

Design of Titanium Alloy Femoral Stem Cellular Structure for Stress Shielding and Stem Stability: Computational Analysis

open access: yesApplied Sciences, 2022
The main objective of this study is to design titanium alloy femoral stems with cubic porous structures that will be able to reduce stress shielding and promote stem stability.
Naser Fawzi Al Zoubi   +3 more
doaj   +1 more source

Multi-physics topology optimization of functionally graded controllable porous structures: Application to heat dissipating problems

open access: yesMaterials & Design, 2020
Graded porous structures can improve the design performance with a smooth transition of material properties over the domain. We present a multi-physics topology optimization approach for designing functionally graded porous structures. As an application,
Sourav Das, Alok Sutradhar
doaj   +1 more source

Even and Uneven Porosities on Rotating Functionally Graded ‎Variable-thickness Annular Disks with Magneto-electro-thermo-‎mechanical Loadings [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2023
This paper investigates the porosity effect on rotating functionally graded piezoelectric (FGP) variable-thickness annular disk. Even and uneven porosity distributions for the disk are approximated.
Rania Tantawy, Ashraf M. Zenkour
doaj   +1 more source

Design and Analysis of Porous Functionally Graded Femoral Prostheses with Improved Stress Shielding

open access: yesDesigns, 2020
One of the most important problems of total hip replacement is aseptic loosening of the femoral component, which is related to the changes of the stress distribution pattern after implantation of the prosthesis.
Morassa Jafari Chashmi   +5 more
doaj   +1 more source

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