Ahmed Hassan Ahmed Hassan

Ondokuz Mayıs Üniversitesi · Department of Mechanical Engineering

Since its first implementation in the mid-eighties of the past century, Functionally Graded Materials (FGM) have been under heavy research in many directions including manufacturing techniques, modeling, and exploring possible applications. Numerous FGM models and analysis methods are continuously appended to the literature. Just like in the rest o...

Since its first implementation in the mid-eighties of the past century, Functionally Graded Materials (FGM) have been under heavy research in many directions including manufacturing techniques, modeling, and exploring possible applications. Numerous FGM models and analysis methods are continuously appended to the literature. Just like in the rest o...

This article presents the derivation of the elastic buckling equations and boundary conditions of shear-deformable plates in the frame of the extended Kantorovich method (EKM). Surveying the literature shows that those stability equations are often obtained using a wrong derivation by confusing them with the linear equilibrium condition. This work...

In this study, it is aimed to develop a model for calculating the buckling liımit of Functionally Graded Plates (FDP) operating under thermo-mechanical loads. In this context, the extended Kantorovich method (EKM) is implemented to the problem of the thermal and thero-mechanical bukling of plates for the first time. In addition, EKM was also implem...

This article presents the derivation of the elastic buckling equations and boundary conditions of shear-deformable plates in the frame of the extended Kantorovich method (EKM). Surveying the literature shows that those stability equations are often obtained using a wrong derivation by confusing them with the linear equilibrium condition. This work...

This work investigates the relations between the critical temperature of the thin FGM plates under various temperature distributions through the thickness resting on the Pasternak elastic foundation. Both rectangular and skew plates are investigated. The uniform, linear, and nonlinear temperature distributions through the plate's thickness are cons...

The present study aims to give critical buckling loads of rectangular functionally graded (FG) plates for various types of boundary conditions. The finite element formulation of stability of plates is introduced and the procedure is applied to obtain critical buckling loads of a plate for two types of boundary conditions: (a) CFFC: two parallel edg...

The extended Kantorovich method (EKM) is implemented to numerically solve the elastic buckling problem of thin skew (parallelogram) isotropic plate under in-plane loading resting on the Pasternak elastic foundation. EKM has never been applied to this problem before. Investigation of the EKM accuracy and convergence is conducted. Formulations are ba...

Multi-term extended Kantorovich method (MTEKM) is used to solve the bending problem of thin skew (parallelogram) functionally graded plate resting on the Winkler elastic foundation under uniformly distributed transverse load. Formulations are based on the classical plate theory (CPT) with the physical neutral surface is considered as the reference...

In this work, applying and experimenting various options effects of a feed-foreword artificial neural network (ANN) which used to obtain regression model that predicts GT Compressor decay state coefficient and GT Turbine decay state coefficient of naval propulsion plants. Based on 16 inputs. Dataset is obtained from an open online source, consists...

Functionally graded materials (FGM) are increasingly used in the engineering field. In many applications, FGMs are modelled as plates. Plates made of functionally graded materials (FGPs) are mostly designed to perform under elevated temperatures. In those circumstances, they are often under the combined effect of thermal and mechanical loads. There...

With plate-buckling problem still being an active area of research in the field of mechanics of materials, researchers need to validate the proposed solutions and theories, using analysis tools such like ANSYS, which is a robust general-purpose finite element analysis tool. This article investigates modeling and buckling analysis of rectangular pla...

Recently, regression artificial neural networks are used to model various systems that have high dimensionality with nonlinear relations. The system under study must have enough dataset available to train the neural network. The aim of this work is to apply and experiment various options effects on feed-foreword artificial neural network (ANN) whic...

Assessment of the exergetical and energical performance of a single-stage NH3–NaSCN absorption refrigeration system has carried out for the effective recovery of low-temperature waste heat of the drainage tanks in AL-Zara thermal power plant in Hama, Syria. Thermodynamic analysis, both first and second law, has employed to be a tool for considerati...

Recently, regression artificial neural networks are used to model various systems that have high dimensionality with nonlinear relations. The system under study must have enough dataset available to train the neural network. The aim of this work is to apply and experiment various options effects on feed-foreword artificial neural network (ANN) whic...

Video tutorial on how to get results of ANSYS APDL on radial path https://www.youtube.com/watch?v=cjfiqwx-GgE

This work reports a modeling method of functionally graded materials (FGM) using ANSYS APDL. ANSYS, like many other analysis software packages, does not provide a direct way to model variation in material properties as a function of position. However, ANSYS offers the option of temperature-dependent properties; and ANSYS also offers the ability to...

This work reports a modelling method of functionally graded materials (FGM) using ANSYS APDL. ANSYS, as many other analysis software packages, does not provide a direct way to model variation in material properties as a function of position. However, ANSYS offers the option of temperature dependent properties; and ANSYS also offers the ability of a...

Concentrated Solar Power CSP plants are now under heavy research worldwide due to its potential of large capacities of power with the ability to store power efficiently in large amounts, which makes it able to run even after the sunset. Once installed it costs almost nothing to run because no fuel is used. However, the main problem is the large ini...

Due to the huge number of distribution transformers yearly consumed and installed in the utility networks, it is always required and targeted to build transformers with the most economical cost. Achieving the guaranteed characteristics of transformers is an important factor that should be considered. It is well know that the transformer design task...