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RISS 인기검색어
- 검색키워드
- 저자 : Zafer Iqbal (검색결과 3 건)
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Performance of FGM bilayered cylindrical shell placed on cantilever edge
Ghamkhar, Madiha,Khadimallah, Mohamed A.,Iqbal, Muhammad Zafer,Hussain, Muzamal,Yahya, Ahmad,Khedher, Khaled Mohamed,Naeem, Muhammad N.,Tounsi, Abdelouahed Techno-Press 2021 Advances in nano research Vol.11 No.4
Functionally graded materials (FGMs) are designed for specific purpose and applications. Functionally graded materials for bi-layered cylindrical shell was discussed for different boundary conditions. Functionally graded materials (FGMs) are that kind of material in which function and formation may deviate continuously. Cylindrical shells are mainly significant in various fields of science as well as advanced technology of engineering like aerospace engineering, mechanical engineering and civil engineering. Wide applications of cylindrical shell in different fields like aircraft, aerospace and pressure vessels etc. Bi-layered cylindrical shells consist of two layers and in this work, one layer is of FGM material whose constituents are nickel (Ni) and zirconia (Zr) and other is of isotropic material whose constituent is stainless steel. In this work, effect of trigonometric volume fraction law on cantilever FGM bi-layered cylindrical shell with internal pressure has analyzed by using Rayleigh-Ritz technique and Love's shell theory. Present results of FGM bi-layered cylindrical shell are compared with FGM cylindrical shell. Validity of present technique has verified by way of comparisons with current conclusions and those obtained in the past studies.
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Buckling behavior of intermediate filaments based on Euler Bernoulli and Timoshenko beam theories
Muhammad Taj,Muzamal Hussain,Mohamed A. Khadimallah,Muhammad Safeer,S.R. Mahmoud,Zafer Iqbal,Mohamed R. Ali,Aqib Majeed,Abdelouahed Tounsi,Manzoor Ahmad Techno-Press 2023 Advances in concrete construction Vol.15 No.3
Cytoskeleton components play key role in maintaining cell structure and in giving shape to the cell. These components include microtubules, microfilaments and intermediate filaments. Among these filaments intermediate filaments are the most rigid and bear large compressive force. Actually, these filaments are surrounded by other filaments like microtubules and microfilaments. This network of filaments makes a layer as a surface on intermediate filaments that have great impact on buckling behavior of intermediate filaments. In the present article, buckling behavior of intermediate filaments is studied by taking into account the effects of surface by using Euler Bernoulli and Timoshenko beam theories. It is found that effects of surface greatly affect the critical buckling force of intermediate filaments. Further, it is observed that the critical buckling force is inversely proportional to the length of filament. Such types of observations are helpful for further analysis of nanofibrous in their actual environments within the cell.
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Theoretical fabrication of Williamson nanoliquid over a stretchable surface
Sharif, Humaira,Hussain, Muzamal,Khadimallah, Mohamed Amine,Ayed, Hamdi,Taj, Muhammad,Bhutto, Javed Khan,Mahmoud, S.R.,Iqbal, Zafer,Ahmad, Shabbir,Tounsi, Abdelouahed Techno-Press 2022 Advances in concrete construction Vol.14 No.2
On the basis of fabrication, the utilization of nano material in numerous industrial and technological system, obtained the utmost significance in current decade. Therefore, the current investigation presents a theoretical disposition regarding the flow of electric conducting Williamson nanoliquid over a stretchable surface in the presence of the motile microorganism. The impact of thermal radiation and magnetic parameter are incorporated in the energy equation. The concentration field is modified by adding the influence of chemical reaction. Moreover, the splendid features of nanofluid are displayed by utilizing the thermophoresis and Brownian motion aspects. Compatible similarity transformation is imposed on the equations governing the problem to derive the dimensionless ordinary differential equations. The Homotopy analysis method has been implemented to find the analytic solution of the obtained differential equations. The implications of specific parameters on profiles of velocity, temperature, concentration and motile microorganism density are investigated graphically. Moreover, coefficient of skin friction, Nusselt number, Sherwood number and density of motile number are clarified in tabular forms. It is revealed that thermal radiation, thermophoresis and Brownian motion parameters are very effective for improvement of heat transfer. The reported investigation can be used in improving the heat transfer appliances and systems of solar energy.
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