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Papers by Dr.Mohsin A Al-Shammari

Research paper thumbnail of Free Vibration Analysis of Composite Cylindrical Shell Reinforced with Silicon Nano-Particles: Analytical and FEM Approach

Physics and Chemistry of Solid State

Previous research presented the effect of nanomaterials on the mechanical properties of composite... more Previous research presented the effect of nanomaterials on the mechanical properties of composite materials with various volume fraction effects; in addition, their research presented the effect of nanomaterials on the same mechanical characteristics for a composite plate structure, such as vibration and thermal buckling behavior. Therefore, since the use of shell structures is for large applications, it is necessary to investigate the modification of the vibration characteristics of its design with the effect of nanomaterials and study the influence of other reinforced nanoparticle types on its features. Therefore, in this work, silicon nanoparticles were selected to investigate their effect on the vibration behavior of a shell structure. As a result, this work included studying the vibration behavior by testing the shell structure with a vibration test machine. In addition, after manufacturing the composite material shell with various silicon volume fractions, the mechanical prope...

Research paper thumbnail of Experimental and Theoretical Study in Rubber Reinforced with Carbon Fillers Under Tension–Cyclic Load

Research paper thumbnail of Experimental and Theoretical Study in Rubber Reinforced with Carbon Fillers Under Tension–Cyclic Load

Research paper thumbnail of Effect of Cracks on the Natural Frequency of Cylindrical Shell Structures

Engineering and Technology Journal

Shell structures are liable to different kinds of defects and damage like cracking and corrosion ... more Shell structures are liable to different kinds of defects and damage like cracking and corrosion which may destroy their structural safety and affect the service life. The cracks' effects are significant considerations in the design of cylindrical shell structures as they influence the vibration characteristics and safety. This present work is an experimental study on the free vibration analysis of a cylindrical shell involving circumferential surface crack. The influence of the ratio of shell’s radius to a shell’s thickness (R/h)of the shell structure, crack length in the shell, crack depth in the shell, crack location of the shell, and crack orientation in the shell are investigated under a clamped - clamped and simply supported boundary conditions at each end in the shell. Results showed that the minimum impact of the crack is at the angle of crack 75, and the circumferential fissure has more effect than a longitudinal fissure, In addition to this, under SS-SS, C-C the natura...

Research paper thumbnail of Fatigue Behavior of Steel Beam Coated with Nanoparticles under High Temperature

Journal of Mechanical Engineering Research and Developments, 2020

This work includes analysis and experimental studies of the temperature effect on high-cycle fati... more This work includes analysis and experimental studies of the temperature effect on high-cycle fatigue behavior of the steel beam coated with nanoparticles. The beams are made from AISI-1020 (low carbon steel). The nano-materials used are zinc oxides (ZnO) and aluminum (Al2O3). The coated technique is used to achieve nano coating, and the thickness of the coating material for both coating forms was 5 μm thick. Experimental activities include a mechanical tensile test to ensure that the type of steel used in the test beam is used. The coating process was also increasingly performed to reach the required thickness for the painted bands. The fatigue test was carried out at different temperatures, from 25 ºC to 300 ºC by a cantilever rotating-bending system. Numerical works were done by finite element method via the aid of "ANSYS" which is a 16TH version workbench software program .The stresses verses revolutions curves were obtained by using curve fitting as described in Basquin's equation. Results show that the Nanomaterial coating decreases the low temperature effect of fatigue of uncoated steel beams. The findings of an experimental-numerical comparison indicate a reasonable difference between experimental and numerical programs.

Research paper thumbnail of ANALYTICAL INVESTIGATION OF BUCKLING BEHAVIOR OF HONEYCOMBS SANDWICH COMBINED PLATE STRUCTURE

The applications of honeycomb structure plate are very important, since its structure have high s... more The applications of honeycomb structure plate are very important, since its structure have high strength in addition to the low weight. Therefore, these structures are used in the multi-important application, where, more its application is applied to buckling load in addition to other loads. Thus, it was necessary to highlight the buckling behavior of its structure. There, in this research, a suggested analytical solution to evaluate the critical buckling load of honeycomb sandwich plate structure combined from honeycomb part and upper and lower sheet plate parts. Then, the included results evaluated the mechanical properties of honeycomb part by analytical investigation and buckling load of sandwich plate structure with various parameters effect by the analytical and numerical investigation. The analytical work included the evaluation of the buckling load of a simply supported plate by driving the general equation of buckling the orthotropic plate with buckling load in an x-direction. Also, the results of simply supported honeycombs plate structure were evaluated by the numerical investigation, by using finite element method, ANSYS program Ver. 15, for various honeycombs core size effect. Therefore, a compare between the results were evaluated analytically and numerically of buckling load are presented to show the agreement between the two techniques were used. Where, the comparison of the analytical and numerical results showed a good agreement of results with a maximum error about (2.24%). Finally, the results showed that the buckling load is modified by increasing the honeycomb core size.

Research paper thumbnail of Buckling Investigation of Isotropic Composite Plate Reinforced by Different Types of Powders

International Journal of Mechanical Engineering and Technology (IJMET), 2018

Researchers have studied the effect of reinforced powder on the behavior and properties of a comp... more Researchers have studied the effect of reinforced powder on the behavior and properties of a composite materials structure. These investigations included the effects of reinforcement by fiber and powder materials. This work studies and investigates experimentally the effect of various types of powder materials and volume fraction on the buckling plate structure. In addition, the FEM numerical technique was employed to compare with the experimental buckling results which were evaluated to give an agreement for the results. Experimental work was conducted to evaluate the buckling behavior of a plate, the first test s were performed on the manufactured composite materials to evaluate the mechanical properties, and finally the plate structure was tested to investigate the critical buckling load with the effect of various parameters of powder materials. The results showed that; using short fibers as reinforcement gave an improvement on the mechanical properties and increased buckling resistance as compared with the powder. The maximum discrepancy between the experimental and numerical results was (9.54%).

Research paper thumbnail of ANALYTICAL INVESTIGATION OF BUCKLING BEHAVIOR OF HONEYCOMBS SANDWICH COMBINED PLATE STRUCTURE

International Journal of Mechanical and Production Engineering Research and Development (IJMPERD), 2018

The applications of honeycomb structure plate are very important, since its structure have high s... more The applications of honeycomb structure plate are very important, since its structure have high strength in addition to the low weight. Therefore, these structures are used in the multi-important application, where, more its application is applied to buckling load in addition to other loads. Thus, it was necessary to highlight the buckling behavior of its structure. There, in this research, a suggested analytical solution to evaluate the critical buckling load of honeycomb sandwich plate structure combined from honeycomb part and upper and lower sheet plate parts. Then, the included results evaluated the mechanical properties of honeycomb part by analytical investigation and buckling load of sandwich plate structure with various parameters effect by the analytical and numerical investigation. The analytical work included the evaluation of the buckling load of a simply supported plate by driving the general equation of buckling the orthotropic plate with buckling load in an x-direction. Also, the results of simply supported honeycombs plate structure were evaluated by the numerical investigation, by using finite element method, ANSYS program Ver. 15, for various honeycombs core size effect. Therefore, a compare between the results were evaluated analytically and numerically of buckling load are presented to show the agreement between the two techniques were used. Where, the comparison of the analytical and numerical results showed a good agreement of results with a maximum error about (2.24%). Finally, the results showed that the buckling load is modified by increasing the honeycomb core size.

Research paper thumbnail of MANUFACTURING AND ANALYSIS OF ANKLE DISARTICULATION PROSTHETIC SOCKET (SYMES)

Four types of laminated composite materials are tested experimentally in order to estimate the fa... more Four types of laminated composite materials are tested experimentally in order to estimate the fatigue characteristics and investigation of the mechanical properties for a manufactured symes prosthetic socket. The socket is made of lamination 80:20 matrix reinforced by four types of reinforcement fibers; the first type includes (4perlon, 3carbon fiber and 4perlon), the second type is (4Perlon,3glass fiber and 4perlon), third type is including (4perlon, 3n-glass and 4perlon) and fourth type is including (8Perlon). The mechanical properties of, yield stress , ultimate strength and modulus of elasticity for the first group ;were 167MPa,218MPa and 1.9GPa respectively , for second group were142MPa,, 160MPa,and 1.7GPa respectively, for the third group were 42 MPa, 47MPa and 1.1GPa respectively and for the fourth group were 36 MPa, 39MPa and 1.08GPa respectively. The internal pressure value between the patient's stump and the manufactured socket was measured using (F-socket) Mat scan sensor It was (222kPa) for the lateral section and (324kPa) for the posterior section. From fatigue test for all groups and ANSYS 14.5 software, the safety factor for composite material (4Perlon ,3carbon fiber,4perlon) layers is about (1.83) which is considered as safe and acceptable in design applications.

Research paper thumbnail of Free Vibration Analysis of Composite Cylindrical Shell Reinforced with Silicon Nano-Particles: Analytical and FEM Approach

Physics and Chemistry of Solid State

Previous research presented the effect of nanomaterials on the mechanical properties of composite... more Previous research presented the effect of nanomaterials on the mechanical properties of composite materials with various volume fraction effects; in addition, their research presented the effect of nanomaterials on the same mechanical characteristics for a composite plate structure, such as vibration and thermal buckling behavior. Therefore, since the use of shell structures is for large applications, it is necessary to investigate the modification of the vibration characteristics of its design with the effect of nanomaterials and study the influence of other reinforced nanoparticle types on its features. Therefore, in this work, silicon nanoparticles were selected to investigate their effect on the vibration behavior of a shell structure. As a result, this work included studying the vibration behavior by testing the shell structure with a vibration test machine. In addition, after manufacturing the composite material shell with various silicon volume fractions, the mechanical prope...

Research paper thumbnail of Experimental and Theoretical Study in Rubber Reinforced with Carbon Fillers Under Tension–Cyclic Load

Research paper thumbnail of Experimental and Theoretical Study in Rubber Reinforced with Carbon Fillers Under Tension–Cyclic Load

Research paper thumbnail of Effect of Cracks on the Natural Frequency of Cylindrical Shell Structures

Engineering and Technology Journal

Shell structures are liable to different kinds of defects and damage like cracking and corrosion ... more Shell structures are liable to different kinds of defects and damage like cracking and corrosion which may destroy their structural safety and affect the service life. The cracks' effects are significant considerations in the design of cylindrical shell structures as they influence the vibration characteristics and safety. This present work is an experimental study on the free vibration analysis of a cylindrical shell involving circumferential surface crack. The influence of the ratio of shell’s radius to a shell’s thickness (R/h)of the shell structure, crack length in the shell, crack depth in the shell, crack location of the shell, and crack orientation in the shell are investigated under a clamped - clamped and simply supported boundary conditions at each end in the shell. Results showed that the minimum impact of the crack is at the angle of crack 75, and the circumferential fissure has more effect than a longitudinal fissure, In addition to this, under SS-SS, C-C the natura...

Research paper thumbnail of Fatigue Behavior of Steel Beam Coated with Nanoparticles under High Temperature

Journal of Mechanical Engineering Research and Developments, 2020

This work includes analysis and experimental studies of the temperature effect on high-cycle fati... more This work includes analysis and experimental studies of the temperature effect on high-cycle fatigue behavior of the steel beam coated with nanoparticles. The beams are made from AISI-1020 (low carbon steel). The nano-materials used are zinc oxides (ZnO) and aluminum (Al2O3). The coated technique is used to achieve nano coating, and the thickness of the coating material for both coating forms was 5 μm thick. Experimental activities include a mechanical tensile test to ensure that the type of steel used in the test beam is used. The coating process was also increasingly performed to reach the required thickness for the painted bands. The fatigue test was carried out at different temperatures, from 25 ºC to 300 ºC by a cantilever rotating-bending system. Numerical works were done by finite element method via the aid of "ANSYS" which is a 16TH version workbench software program .The stresses verses revolutions curves were obtained by using curve fitting as described in Basquin's equation. Results show that the Nanomaterial coating decreases the low temperature effect of fatigue of uncoated steel beams. The findings of an experimental-numerical comparison indicate a reasonable difference between experimental and numerical programs.

Research paper thumbnail of ANALYTICAL INVESTIGATION OF BUCKLING BEHAVIOR OF HONEYCOMBS SANDWICH COMBINED PLATE STRUCTURE

The applications of honeycomb structure plate are very important, since its structure have high s... more The applications of honeycomb structure plate are very important, since its structure have high strength in addition to the low weight. Therefore, these structures are used in the multi-important application, where, more its application is applied to buckling load in addition to other loads. Thus, it was necessary to highlight the buckling behavior of its structure. There, in this research, a suggested analytical solution to evaluate the critical buckling load of honeycomb sandwich plate structure combined from honeycomb part and upper and lower sheet plate parts. Then, the included results evaluated the mechanical properties of honeycomb part by analytical investigation and buckling load of sandwich plate structure with various parameters effect by the analytical and numerical investigation. The analytical work included the evaluation of the buckling load of a simply supported plate by driving the general equation of buckling the orthotropic plate with buckling load in an x-direction. Also, the results of simply supported honeycombs plate structure were evaluated by the numerical investigation, by using finite element method, ANSYS program Ver. 15, for various honeycombs core size effect. Therefore, a compare between the results were evaluated analytically and numerically of buckling load are presented to show the agreement between the two techniques were used. Where, the comparison of the analytical and numerical results showed a good agreement of results with a maximum error about (2.24%). Finally, the results showed that the buckling load is modified by increasing the honeycomb core size.

Research paper thumbnail of Buckling Investigation of Isotropic Composite Plate Reinforced by Different Types of Powders

International Journal of Mechanical Engineering and Technology (IJMET), 2018

Researchers have studied the effect of reinforced powder on the behavior and properties of a comp... more Researchers have studied the effect of reinforced powder on the behavior and properties of a composite materials structure. These investigations included the effects of reinforcement by fiber and powder materials. This work studies and investigates experimentally the effect of various types of powder materials and volume fraction on the buckling plate structure. In addition, the FEM numerical technique was employed to compare with the experimental buckling results which were evaluated to give an agreement for the results. Experimental work was conducted to evaluate the buckling behavior of a plate, the first test s were performed on the manufactured composite materials to evaluate the mechanical properties, and finally the plate structure was tested to investigate the critical buckling load with the effect of various parameters of powder materials. The results showed that; using short fibers as reinforcement gave an improvement on the mechanical properties and increased buckling resistance as compared with the powder. The maximum discrepancy between the experimental and numerical results was (9.54%).

Research paper thumbnail of ANALYTICAL INVESTIGATION OF BUCKLING BEHAVIOR OF HONEYCOMBS SANDWICH COMBINED PLATE STRUCTURE

International Journal of Mechanical and Production Engineering Research and Development (IJMPERD), 2018

The applications of honeycomb structure plate are very important, since its structure have high s... more The applications of honeycomb structure plate are very important, since its structure have high strength in addition to the low weight. Therefore, these structures are used in the multi-important application, where, more its application is applied to buckling load in addition to other loads. Thus, it was necessary to highlight the buckling behavior of its structure. There, in this research, a suggested analytical solution to evaluate the critical buckling load of honeycomb sandwich plate structure combined from honeycomb part and upper and lower sheet plate parts. Then, the included results evaluated the mechanical properties of honeycomb part by analytical investigation and buckling load of sandwich plate structure with various parameters effect by the analytical and numerical investigation. The analytical work included the evaluation of the buckling load of a simply supported plate by driving the general equation of buckling the orthotropic plate with buckling load in an x-direction. Also, the results of simply supported honeycombs plate structure were evaluated by the numerical investigation, by using finite element method, ANSYS program Ver. 15, for various honeycombs core size effect. Therefore, a compare between the results were evaluated analytically and numerically of buckling load are presented to show the agreement between the two techniques were used. Where, the comparison of the analytical and numerical results showed a good agreement of results with a maximum error about (2.24%). Finally, the results showed that the buckling load is modified by increasing the honeycomb core size.

Research paper thumbnail of MANUFACTURING AND ANALYSIS OF ANKLE DISARTICULATION PROSTHETIC SOCKET (SYMES)

Four types of laminated composite materials are tested experimentally in order to estimate the fa... more Four types of laminated composite materials are tested experimentally in order to estimate the fatigue characteristics and investigation of the mechanical properties for a manufactured symes prosthetic socket. The socket is made of lamination 80:20 matrix reinforced by four types of reinforcement fibers; the first type includes (4perlon, 3carbon fiber and 4perlon), the second type is (4Perlon,3glass fiber and 4perlon), third type is including (4perlon, 3n-glass and 4perlon) and fourth type is including (8Perlon). The mechanical properties of, yield stress , ultimate strength and modulus of elasticity for the first group ;were 167MPa,218MPa and 1.9GPa respectively , for second group were142MPa,, 160MPa,and 1.7GPa respectively, for the third group were 42 MPa, 47MPa and 1.1GPa respectively and for the fourth group were 36 MPa, 39MPa and 1.08GPa respectively. The internal pressure value between the patient's stump and the manufactured socket was measured using (F-socket) Mat scan sensor It was (222kPa) for the lateral section and (324kPa) for the posterior section. From fatigue test for all groups and ANSYS 14.5 software, the safety factor for composite material (4Perlon ,3carbon fiber,4perlon) layers is about (1.83) which is considered as safe and acceptable in design applications.