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Design of a New Stress Wave-Based Pulse Position Modulation (PPM) Communication System with Piezoceramic Transducers [PDF]
Sensors, 2019 Stress wave-based communication has great potential for succeeding in subsea environments where many conventional methods would otherwise face excessive difficulty, and it can benefit logging well by using the drill string as a conduit for stress wave ...
Aiping Wu +5 more
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Rock and Soil Mechanics, 2021 To study the effectiveness of filled cracks as a means of anti-blasting and wave-elimination for underground protective structures, 36 one-dimensional impact tests were carried out on the intact rock specimens and rock specimens with filled cracks using ...
LIU Xin +5 more
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Applied Sciences, 2023 The nondestructive testing technique used to evaluate the quality of bolt support by detecting the axial force is suitable for the bolt with a short construction time. For the bolt in the support state for a long time period, it may lead to the detection
Chuanming Li +8 more
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Meitan xuebao, 2023 Rock bolt support and borehole pressure relief change the medium properties of roadway surrounding rock, form the roadway gradient surrounding rock structure with three media and two planes, increase the absorption and attenuation ability of stress waves,
Aiwen WANG +7 more
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Machines, 2023 To optimize and improve the impact performance of a hydraulic rock drill, it is helpful to test the stress waves of the drill and analyze the impact energy, impact frequency, and energy utilization rate.
Zhenyi Yang, Jun Li, Guoyan Yu
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Cavitation erosion behavior of nickel foam/polyurethane co-continuous composite
Materials Research Express, 2021 The cavitation erosion behavior of Ni foam/polyurethane (PU) co-continuous composites under different experimental conditions was investigated using an ultrasonic vibration cavitation erosion device.
J X Wang +4 more
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Maderas: Ciencia y Tecnología, 2023 For the mechanical characterization of Turkish fir and black pine, 400 board specimens with 22 mm× 50 mm × 420 mm were visually graded according to TS 1265 standard. Nondestructive tests were here upon performed using the stress wave method.
Fatih Kurul +2 more
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Using acoustic testing to estimate strength and stiffness of wood-polymer composites
Maderas: Ciencia y Tecnología, 2023 This study used non-destructive testing with ultrasonic and stress wave propagation to evaluate bending strength and stiffness of wood-polymer composites. Twelve composite plate products were produced with different formulations of polymer matrix (high-
Éverton Hillig +3 more
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The protective performance of rubber pads for penetration fuze
Frontiers in Materials, 2023 To ensure the reliable functioning of hard target-penetration fuze on the battlefield, this study focuses on research related to fuze protective pads. The main factors causing fuze functional failure are summarized, and a simplified model of projectile ...
Libo Ding +3 more
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Frontiers in Earth Science, 2023 To study the fatigue failure of an intermittent jointed rock mass under repeated stress waves, numerical models of jointed rock masses with different joint angles were created using Autodyne software, and crack propagation behavior was simulated using ...
Shuyin Ma +6 more
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