IOP Conference Series: Materials Science and Engineering

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ISSN / EISSN : 17578981 / 1757899X
Current Publisher: IOP Publishing (10.1088)
Total articles ≅ 45,851
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IOP Conference Series: Materials Science and Engineering, Volume 637; doi:10.1088/1757-899x/637/1/011001

Abstract:The 3rd International Conference on Robotics and Mechatronics (ICRoM 2019) was held on August 9-11, 2019, in the Horizon Hotel in the beautiful city of Kota Kinabalu Sabah. Since its inception, ICRoM has attracted many researchers from all over the world to share their findings. The delegates are from the USA, England, Czech Republic, Iraq, China, Malaysia, Thailand, and India. Despite ICRoM 2019 aims for different topics, the conference has been successfully gathered different researchers to discuss ideas for multidiscipline research which are required for current and future technology. In addition, with the advancement of many aspects of engineering and technologies, we believe that ICRoM 2019 has played a vital role to contribute a significant knowledge and practical implementations particularly in Manufacturing Technology as well as Automation and Mechatronics Engineering. We would like to thank all excellent Keynote Speakers and Invited Speakers which have delivered and shared their current research, respectively. The presentation started with Prof. Kok-Meng Lee (Georgia Institute of Technology, USA), followed by Prof. Li Lu (National University of Singapore, Singapore), Prof. Sujan Debnath (Head of Mechanical Engineering, Curtin University, Malaysia), Assoc. Prof. Vincent Lee Chieng Chen (Curtin University, Malaysia), Prof. Dr. Eric Dimla (RMIT University Vietnam, Vietnam), Assoc. Prof. Petr Valasek (Czech University of Life Science Prague, Czech Republic), Assoc. Prof. Jamaludin Jalani (Universiti Tun Hussein Onn Malaysia, Malaysia) and finally distinguished oral presentations. We also would like to thank all the reviewers and proceeding team for their time and effort to ensure the proceeding document are in good quality. We sincerely hope that the proceeding will benefit to the people brought by the academic community and industrial practitioners. Continuous supports are essential from various parties particularly academicians, students, researchers, professionals, engineers, and scientists from academia and industry to ensure even more meaningful conferences are served in the future with numerous critical idea exchanges, diverse opportunities for fruitful networking and future collaborations between the delegates. Warmest regards, Conference Program Chair Assoc. Prof. Jamaludin Jalani Universiti Tun Hussein Onn Malaysia, Malaysia ICRoM 2019 Committee
IOP Conference Series: Materials Science and Engineering, Volume 637; doi:10.1088/1757-899x/637/1/011002

Abstract:List of Conference Chair, Conference Program Chairs, Local Organizing Committees, Technical Committees are available in the pdf.
Firoz Alam Faroque, Saanil Kakati, Sanchita Bandhopadhyay-Ghosh, Subrata Bandhu Ghosh
IOP Conference Series: Materials Science and Engineering, Volume 638; doi:10.1088/1757-899x/638/1/012014

Abstract:With growing consumer awareness, carbon footprint and waste disposal challenges, there is an increasing demand for the use of agricultural wastes in developing value-added structural components. In this current study, commercially available epoxy resin has been reinforced with chemically modified wheat straw filler. Particulate wheat straw fillers were undergone alkaline treatment to remove selective and non-essential components. Alkaline modified samples were then treated with organo-sulfide based coupling agent to enhance filler/matrix interfacial compatibility. The bio-composite samples were developed using casting technique. The cast samples were tested for their mechanical strengths using compression and flexural tests. The results indicated that the use of coupling agent and alkaline treatment led to improvement of mechanical strength in a synergistic manner. Optical micrographs of fractured surfaces also revealed morphological features which could be correlated to the mechanical performance of the bio-composites.
Thamir A. D. M. S. Almula, Ahmad Hassan Khuder, Mohd Yazid Yahya, Amran Ayob
IOP Conference Series: Materials Science and Engineering, Volume 638; doi:10.1088/1757-899x/638/1/012012

Abstract:The composite hybrid pipe is a novel structure made of concentric composite multilayer possess improved thermal and mechanical properties better than its original components. At variance experimental analysis, the numerical studies on the structure and behavior of composite hybrid natural fiber reinforced epoxy pipe materials pressurized internally seem lacking. In this study, numerical analysis was carried out for three different stacking plies of composite hybrid natural fiber ±55° basalt and Eglass fiber reinforced epoxy tube which was tested under the subjection for three modes of applied load, the hoop and longitudinal tensile tested as well as subjection under biaxial internal pressures load in accordance to ASTM's standard to investigate the mechanical behavior and the optimal configuration among them. Also, analyzed the comparable three types of hybrid natural fiber (basalt)/Eglass reinforced epoxy with pure ±55° Eglass reinforced epoxy and pure ±55° basalt reinforced epoxy numerically to predict the performance for the hybrid over the pure E-glass and basalt fiber reinforced epoxy composite pipe as a good replacement to meet the different demand of applications in the pressure pipelines. Also The three stacking plies types of hybrid composite pipes were compared with the pure E-glass and basalt fiber reinforced epoxy pipes. All samples were fabricated using a dry filament wound CNC machine with ±55° orientation angle, then infused with epoxy resin using vacuum infusion procedure (VIP). Numerical analysis was carried out using finite element commercial code ANSYS V14.
Ahmed Elbeih, Mahmoud Abdelhafiz, Ahmed K. Hussein, Tamer Z. Wafy, Tamer Elshenawy, Ahmad Baraka, Mohamed A. Elsayed, Mohamed Gobara
IOP Conference Series: Materials Science and Engineering, Volume 610; doi:10.1088/1757-899x/610/1/012039

Abstract:An explosive charge, located within a machined cavity in a bolt, provides the energetic stimulus required for cleanly bolt fracture. The shock wave produced fom the explosion causes tensile fracture along the bolt itself with minumum fragmentation and helps to control the separation process of the satellite from its rocket. In this study, EPX-P20 is a paste explosive in the research stage. EPX-P20 is based on PETN (pentaerythritol tetranitrate) bonded by polydimethyl-siloxane binder matrix. A computerizing mixer plastograph was used for the production of EPX-P20. The internal energy of combustion was measured and used to determine the enthalpy of formation. Sensitivity against both friction and impact stimuli were determined. The detonation properties were calculated theoretically using the EXPLO 5 soft code, while the detonation velocity was determined experimentally. For comparison, several commercial available explosives such as; Sprängdeg m/46, Formex P1, Semtex 10 and EPX-1 were investigated. It was proven that EPX-P20 possesses the lowest velocity of detonation while maintaining its very low sensitivity. Interesting inversely proportion relationship amongst the measured internal energy of combustion and the calculated heat of detonation was observed. The produced paste explosive might be used in explosive bolt for space craft's applications.
Fujie Jiang, Xiangdong Sun, Huibai Li, Jingyu Huang, Dongshuai Li
IOP Conference Series: Materials Science and Engineering, Volume 637; doi:10.1088/1757-899x/637/1/012008

Abstract:Firstly, based on the traditional circuit design method, the theoretical calculation value of the minimum radius of the flat curve under the design speed of 500 km/h is calculated in this paper; Through the analysis of the structural characteristics of the TR08 high-speed maglev train and the degree of freedom of each component, a 129-DOF high-speed maglev vehicle-line dynamics model is established by using the multi-body dynamics software SIMPACK; And using the modle to simulate and analyze the influence of the radius of the flat curve on the dynamic performance of the vehicle. Finally, according to the simulation results, the theoretical calculation of the minimum radius of the flat curve is optimized and adjusted, and the minimum radius recommended value of the flat curve that satisfies the dynamic evaluation index is obtained. After the simulation optimization, the unbalanced lateral acceleration and the vertical acceleration dynamic response of the vehicle passing through the designed curve section are significantly reduced, and the ride comfort of the passengers is good.
Wang Lun, Wang Nan, Du Yubo, Yang Litao, Wang Peng, Yue Xiaokui
IOP Conference Series: Materials Science and Engineering, Volume 637; doi:10.1088/1757-899x/637/1/012010

Abstract:Due to the low viscosity of water, the water film is not easy to form, and the water-lubricated bearing system has the characteristics of airtightness. Therefore, it is difficult to obtain an accurate water film pressure distribution through experiments. Aiming at the loss of water film pressure in the process of water film pressure transmission caused by L-type pipeline in the existing wireless sensor testing methods for water film pressure, a mathematical model of water-lubricated bearing system pipeline pressure loss is established by numerical analysis method, and the corresponding physical model is established by using ANSYS software. The mechanism of pressure loss is studied by simulation. Finally, the test results were corrected and analyzed. The results show that the higher the flow rate of lubricating water at the inlet of the pipeline, the greater the pressure loss of the water film; the higher the shaft speed, the greater the local pressure loss; the longer the pipeline, the greater the pressure loss of the straight pipe section of the L-shaped pipeline, and the dynamic condition of the pipeline The pressure loss and energy loss are much more severe than static conditions.
D Y Wang, D Q Li, J Chen, S C Zheng
IOP Conference Series: Materials Science and Engineering, Volume 638; doi:10.1088/1757-899x/638/1/012007

Abstract:The paper develops a position synchronization controller for a new active/active dual redundant electro-mechanical actuation system and designs a test platform to validate the performance of the controller. The mathematic models of the position synchronization system are firstly built based on the schematic of the active/active dual redundant electro-mechanical actuation system. The position controller for DEMA and GEMA of is developed based on the velocity and acceleration feed forward and traditional PID theory. A series of motion experiments are carried out to verify the effectiveness of the controller design for active/active dual redundant electro-mechanical actuation system. The experiments results show that the position controllers designed for either DEMA or GEMA are satisfied, the biggest following error is not more than 0.1mm. And the synchronous motion tests show that the PI plus Output Saturation feedback position synchronization control can reduce more than 30 percent synchronous position errors. Furthermore, the tests of position synchronization show that EMA stiffness has a big influence on the synchronous precision. The new position synchronization controller designed based on the accurate system model and actual system parameters can better achieve the position synchronization requirements of the dual redundant EMA system, which makes good sense for redundant systems.
Zehao Chen, Pengfei Guo, Hailong Tian, Ying Wang, Chenghong Feng
IOP Conference Series: Materials Science and Engineering, Volume 638; doi:10.1088/1757-899x/638/1/012013

Abstract:In this study, an oxygen slow-releasing materials (OSRM) was developed by simple one-step synthesis. The composition of OSRM included calcium peroxide, bentonite or carclazyte, cement, potassium dihydrogen phosphate (KH2PO4) and ammonium sulphate((NH4)2SO4). The OSRM was natural and non-toxic. The slow release oxygen properties and pH control ability of OSRM were evaluated. Results showed that the oxygen concentration increased and kept stable in a week after the addition of OSRM. The OSRM added with KH2PO4 and (NH4)2SO4 was better than The OSRM doped with carclazyte in controling the pH approaching to neutralization. Besides, The OSRM doped with carclazyte instead of bentonite led to the oxygen release slowly. In stimulated sediment environment, the pH value in water was stable at about 7.6 after 4 g/L of OSRM added. This phenomenon may be due to functional groups with buffer capacity occurred in sediment.
Miroslav Müller, Petr Valašek, Martin Tichý, Alessandro Ruggiero, Roberto D’Amato
IOP Conference Series: Materials Science and Engineering, Volume 638; doi:10.1088/1757-899x/638/1/012011

Abstract:The subject of the paper is a research on the wear resistance by friction against loosely fixed abrasive particles on a polymer composite material reinforced by waste microparticles from a pressing process of Jatropha curcas L. seeds with concentration from 5 to 20 wt.%. The seed pressing waste was used in form of Whole seeds cake (WSC), Seed shells (SS) and Seed kernels cake (SKC). The waste, which is difficult to further utilize for its inability to use as feed, arises at the pressing process of Jatropha Curcas L. seeds. A matrix of composite materials was epoxy-based. The wear tests were performed by the device Tester T-07 according to GOST 23.208-79. An addition of the filler significantly increased the wear resistance by friction against a rubber wheel with loosely fixed abrasive particles of sand. The wear resistance was increased up of 69% to 82% at tested polymer composite systems against matrix (resin). Composites materials with the filler Whole seeds cake (WSC) achieved the best results.