Results 1 to 10 of about 1,129,118 (179)
Impact Velocity Measurement Method Based on Trajectory and Impact Position [PDF]
Sensors, 2022 The impact velocity of falling weight is an instantaneous quantity. Currently, measurement of impact velocity relies on high-speed sensors to capture the moment of impact. The trajectory-position measurement method (TPMM) is proposed in this study.
Hui Liu, Jingfan Wang, Yuantao Wu
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The Effect of Strain Rate on Bone Fragility and Clinical Applications [PDF]
BioengineeringThe loading rate influences the fracture mechanics of bone. The effect of strain rate on bone tissue was studied. Two sets of dynamic tests were performed, where the impact energy E = 70 J was kept as a constant value.
Marijo Bekić +4 more
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Dynamic splitting tensile performance of new and old concrete after high temperature treatment [PDF]
Archives of Civil Engineering, 2021 In order to study the dynamic splitting tensile properties of new and old concrete after high temperature treatment, the effects of different impact velocities and temperatures on failure modes, dynamic splitting strength and energy absorption of new and
Hai Cao
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Shenzhen Daxue xuebao. Ligong ban, 2022 In order to study the impact resistance and dynamic damage rule of reinforced concrete (RC) beams strengthened with carbon fiber reinforced plastics (CFRP) under different impact velocities, four CFRP strengthened RC beams were tested by using a drop ...
ZHANG Yafang +3 more
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Investigation of factors enhancing droplets spreading on leaves with burrs
Frontiers in Plant Science, 2023 IntroductionSpread effect is one of the aspects on deposition quality evaluation of pesticide droplets. It could be affected by many factors such as the microstructure of the target plant leaf surface, physical features of the droplets, and the ...
Pei Wang +7 more
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Design and Analysis of a Fluid-Filled RF MEMS Switch
Sensors, 2023 In the present study, a fluid-filled RF MEMS (Radio Frequency Micro-Electro-Mechanical Systems) switch is proposed and designed. In the analysis of the operating principle of the proposed switch, air, water, glycerol and silicone oil were adopted as ...
Hongyu Zhu +3 more
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Low velocity impact on polymeric foams [PDF]
Journal of Cellular Plastics, 2010 The effect of the impactor nose shape on the penetration behavior of polymethacrylimide foams is investigated in the velocity range of 4—8 m/s. It is observed from experimental results that penetration load depends on the geometry of the impactor and the density of the foam.
Flores-Johnson, E. A., Li, Q. M.
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Probing Magnetic Pulse Welding of Thin-Walled Tubes
Journal of Manufacturing and Materials Processing, 2020 Magnetic pulse welding is a solid-state joining technology, based on the use of electromagnetic forces to deform and to weld workpieces. Since no external heat sources are used during the magnetic pulse welding process, it offers important advantages for
Koen Faes, Rishabh Shotri, Amitava De
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PROBLEM WITH DETERMINING THE VEHICLE IMPACT VELOCITY FOR CAR BODIES BREAKING APART [PDF]
Transport Problems, 2022 This article investigates the impact of a passenger car on a tree, which resulted in the car body breaking apart. A side impact of the car on a tree at high driving speeds is not a standard test in the provisions of the applicable Directives of the ...
Piotr ALEKSANDROWICZ +4 more
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FRICTION MODELING IN SIMULATING BALLISTIC IMPACT. A REVIEW [PDF]
Proceedings on Engineering Sciences, 2019 This paper presents a review on using friction coefficient in modelling ballistic impact. The are discussed on friction introduced in modelling the impact at different levels: micro (fiber and yarns), meso (woven or unidirectional fabrics) and macro ...
George Ghiocel OJOC +3 more
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