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Ateeb Ahmad Khan has around 15 research papers, all published in reputed journals. He also has published patents with Indian Patent on Regenerative Braking System. In case you find them worth, a little appreciation in the form of feedback will be great. If you have any doubts in the paper or you want to collaborate, you are just a click away.

Finite Element Modelling for Static and Free Vibration Response of Functionally Graded Beam

A 1D Finite Element model for static response and free vibration analysis of functionally graded material (FGM) beam is presented in this work. The FE model is based on efficient zig-zag theory (ZIGT) with two noded beam element having four degrees of freedom at each node. Linear interpolation is used for the axial displacement and cubic hermite interpolation is used for the deflection. Out of a large variety of FGM systems available, Al/SiC and Ni/Al2O3 metal/ceramic FGM system has been chosen. Modified rule of mixture (MROM) is used to calculate the young’s modulus and rule of mixture (ROM) is used to calculate density and poisson’s ratio of FGM beam at any point. The MATLAB code based on 1D FE zigzag theory for FGM elastic beams is developed. A 2D FE model for the same elastic FGM beam has been developed using ABAQUS software. An 8-node biquadratic plane stress quadrilateral type element is used for modeling in ABAQUS. Three different end conditions namely simply-supported, cantilever and clamped- clamped are considered. The deflection, normal stress and shear stress has been reported for various models used. Eigen Value problem using subspace iteration method is solved to obtain un-damped natural frequencies and the corresponding mode shapes. The results predicted by the 1D FE model have been compared with the 2D FE results and the results present in open literature. This proves the correctness of the model. Finally, mode shapes have also been plotted for various FGM systems.

Effect of Fiber Orientation on Damage Resistance of Composite Laminates

 

The present study deals with the behavior of angle ply composite laminates subjected to low velocity impact. The laminates were prepared by E-glass fibers as reinforcement and epoxy as resin. Experiments were performed on these laminates by using low velocity drop weight set-up machine at three energy levels produced by using two masses. At energy level it was noticed that, [0/90]s laminate was most damage resistant and [0/15]s laminate was least resistant while the contact duration of impactor on laminate(s) was found to be sensitive to mass level. Finite Element (FE) analysis was performed to quantify the damage in laminates and investigate energy absorbed in intra-layer failure modes. During the post-processing FE analysis helps to mark the critical load points on the load-displacement history and quantification of distinct failure modes. The size of delamination profile was seen to be governed by fibre orientation and inter-laminar shear stresses at the interface.

Finite Element Modelling and Simulation of Projectile Impact on Ductile Target

The present study deals with the behaviour of angle ply composite laminates subjected to low velocity impact. The laminates were prepared by E-glass fibres as reinforcement and epoxy as resin. Experiments were performed on these laminates by using low velocity drop weight set-up machine at three energy levels produced by using two masses. At energy level it was noticed that, [0/90]s laminate was most damage resistant and [0/15]s laminate was least resistant while the contact duration of impactor on laminate(s) was found to be sensitive to mass level. Finite Element (FE) analysis was performed to quantify the damage in laminates and investigate energy absorbed in intra-layer failure modes. During the post-processing FE analysis helps to mark the critical load points on the load-displacement history and quantification of distinct failure modes. The size of delamination profile was seen to be governed by fibre orientation and inter-laminar shear stresses at the interface.

Synthesis and Mechanical Response Of NiTi SMA Nanoparticle Reinforced Mg Composites Synthesized through Microwave Sintering Process

The concept of developing intelligent Self-Healing Metallic Materials that can repair its damage is always fascinating and is of great interest in order to improve the quality service life of engineering components. Due to their low density, magnesium (Mg) and its alloys offer a combination of better specific strength (σ/ρ), damping characteristics and impact resistance and can suit best for the quest of intelligent self-healing materials development. In the current study, Mg is reinforced with 2 wt.% NiTi shape memory alloy (SMA) nanoparticles and the SMA particle effect on the mechanical properties and microstructural evolution of monolithic magnesium are studied. A near dense Mg-2 wt. % NiTi nanocomposite was obtained during the study. The addition of NiTi nanoparticle resulted in a ~29 % and ~73% enhancement in the microhardness and grain size of pure Mg. Damping capacity and loss rate of pure Mg also had a superior enhancement of ~119% and ~2.6 times, respectively due to the presence of NiTi nanoparticle. The compressive strength properties also exhibited a visible enhancement due to the presence of NiTi nanoparticle without compromising on the fracture strain of the material.

Comparison of Various Higher Order Shear Deformation Theories for Static and Modal Analysis of Composite Beam

This study deals with comparison of various higher order shear deformation theories including exponential shear deformation beam theory (ESDBT), trigonometric shear deformation beam theory (TSDBT) and hyperbolic shear deformation beam theory (HSDBT) for static and modal analysis of composite beam. Static analysis of generally laminated composite beam with simply supported edges and uniformly distributed load has been performed and solution has been obtained to the governing differential equations derived using Hamilton’s principal. The results are obtained by developing MATLAB codes for various theories. These results for test beam are compared with third order theory (TOT). The effect of span to thickness ratio on the accuracy is studied. The exponential shear deformation beam theory (ESDBT) yields more accurate results than other theories for both static and modal analysis of the beam.

Comparison of Various Higher Order Shear Deformation Theories for Static and Modal Analysis of Composite Beam

This study deals with comparison of various higher order shear deformation theories including exponential shear deformation beam theory (ESDBT), trigonometric shear deformation beam theory (TSDBT) and hyperbolic shear deformation beam theory (HSDBT) for static and modal analysis of composite beam. Static analysis of generally laminated composite beam with simply supported edges and uniformly distributed load has been performed and solution has been obtained to the governing differential equations derived using Hamilton’s principal. The results are obtained by developing MATLAB codes for various theories. These results for test beam are compared with third order theory (TOT). The effect of span to thickness ratio on the accuracy is studied. The exponential shear deformation beam theory (ESDBT) yields more accurate results than other theories for both static and modal analysis of the beam.

Comparison of Various Higher Order Shear Deformation Theories for Static and Modal Analysis of Composite Beam

This study deals with comparison of various higher order shear deformation theories including exponential shear deformation beam theory (ESDBT), trigonometric shear deformation beam theory (TSDBT) and hyperbolic shear deformation beam theory (HSDBT) for static and modal analysis of composite beam. Static analysis of generally laminated composite beam with simply supported edges and uniformly distributed load has been performed and solution has been obtained to the governing differential equations derived using Hamilton’s principal. The results are obtained by developing MATLAB codes for various theories. These results for test beam are compared with third order theory (TOT). The effect of span to thickness ratio on the accuracy is studied. The exponential shear deformation beam theory (ESDBT) yields more accurate results than other theories for both static and modal analysis of the beam.

Comparison of Various Higher Order Shear Deformation Theories for Static and Modal Analysis of Composite Beam

This study deals with comparison of various higher order shear deformation theories including exponential shear deformation beam theory (ESDBT), trigonometric shear deformation beam theory (TSDBT) and hyperbolic shear deformation beam theory (HSDBT) for static and modal analysis of composite beam. Static analysis of generally laminated composite beam with simply supported edges and uniformly distributed load has been performed and solution has been obtained to the governing differential equations derived using Hamilton’s principal. The results are obtained by developing MATLAB codes for various theories. These results for test beam are compared with third order theory (TOT). The effect of span to thickness ratio on the accuracy is studied. The exponential shear deformation beam theory (ESDBT) yields more accurate results than other theories for both static and modal analysis of the beam.

This paper gives an insight on the suspension dynamics of the two most widely used models for vehicle dynamics with their complete state space analysis, simulated by using Mat Lab platform. In this paper we investigate the responses of the quarter car and a half car model as the vehicle ride performance is generally assessed at the design stage by simulating the vehicle response to road excitation. This requires the development of a vehicle model to analysis its responses. The time responses and frequency responses of the sprung and unsprung masses have been studied. The optimal solution here is the damping, which has been optimized with the given set of fixed parameters.

This paper gives an insight on the suspension dynamics of the two most widely used models for vehicle dynamics with their complete state space analysis, simulated by using Mat Lab platform. In this paper we investigate the responses of the quarter car and a half car model as the vehicle ride performance is generally assessed at the design stage by simulating the vehicle response to road excitation. This requires the development of a vehicle model to analysis its responses. The time responses and frequency responses of the sprung and unsprung masses have been studied. The optimal solution here is the damping, which has been optimized with the given set of fixed parameters.

Smart Spirit Level

Flatness measurement is always an emerging problem in the broad area of Machines, automobiles, construction etc. For any machine before its operation should have an accurate alignment. A simple spirit level is commonly employed in order to measure Flatness but the results are not so accurate. Although we have electronic devices such as inclinometer for those tasks they are so much costly. Here comes our technology “A hybrid spirit level” through which measurement of inclination becomes more precise at a very cheap cost. The apparatus consists of a sprit level integrated with an electronic circuit to detect the inclination/ flatness of the required surface. Here the property of conductivity of liquid will be employed in the job of detecting the inclination of the surface. By using this method it is possible to minimize the error to a great extent and also will help in automatic detection of flatness/ inclination.

Car Safety System with Integrated

Seat Belt Design

International Journal of Electronics, Electrical and Computational System (2018)

Improvising traffic safety is a prime strategic technique used in addressing national and global road casualty reduction targets. Vehicle safety addresses the safety of all road users and currently comprises measures to help avoid a crash (crash avoidance) or reduce injury in the event of a crash (crash protection). Road traffic injuries are a major but neglected global public health problem, requiring concerted efforts for effective and sustainable prevention. What is worse, without increased efforts and new initiatives, the total number of road traffic deaths worldwide and injuries is forecast to rise by some 65% between 2000 and 2020, and in low income and middle-income countries, deaths are expected to increase by as much as 80%. Improving vehicle safety is a key strategy used in addressing international and national road casualty reduction targets and in achieving a safer road traffic system. Many attempts have been done in the field of vehicle safety but the previous attempts are complex, this paper focuses on the control of gear shift at high speed through the seat belt implementation. As soon as the vehicle goes to 4th or 5th or higher gear, a seat belt would be automatically buckled.

Aluminum composites has wide application in an automobile such as the design of four-wheeler rim, aerospace, sports, Machines, etc. the problem associated with aluminum alloy is their low wear resistance during machining, therefore, an attempt is made to improve the wear properties of pure aluminum by reinforcing it with hybrid ceramic such as SiC-B4C. In this research pure Al and Al with hybrid reinforcement of SiC-B4C are fabricated using powder metallurgy technique. 10 billets i.e. PureAl, Al-3wt%SiC7wt%B4C, Al-5wt%SiC5wt%B4C and Al-7wt%SiC3wt%B4C are compacted with compaction loads of 3, 4 and 5 Ton and then Sintered near the melting point. Physical properties such as density, porosity, XRD and wear properties are calculated. On the progressive addition of SiC-B4C, a significant enhancement in physical and wear properties is obtained. The effect of Compaction load on wear the property is also illustrated in this research

A regenerative braking system (RBS) 'KATAS' for IC powered vehicle for generation and storage of electrical power

Ever since RBS(s) were introduced in the early 20 century, they found great applications in Electric and Hybrid cars for sensible energy recovery. Although gas-powered vehicles did try to adopt this technology but it never gained much traction there. Systems like mechanical RBS with bulky flywheels were used in some models of commercial cars to tap the kinetic energy of the vehicle but they didn't gain as much popularity as their Hybrid counterparts. India aims to go all-electric in the year 2030, but this is a farfetched reality. There is an urgent need to improvise current technology to make it less harmful to the environment. KATASis a new technology specially designed for combustion vehicles is a low-cost mechanism to extract and store a significant portion of the kinetic energy of the vehicle during braking. Special attention is given to make it suitable for Indian driving conditions. It can preserve energy enough to run electronic components of a commercial car. Since the present cars extract energy from the engine to run these components, this, tech qualitatively improves the fuel economy of the vehicle leading towards less carbon emission and sensible transportation.

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©2020 by Ateeb Ahmad Khan.