Results 1 to 10 of about 353 (208)
Crack Detection in an Aluminium Oxide Grinding Wheel by Impact Hammer Tests
Computation, 2023 Grinding is widely used as the last step of the manufacturing process when a good surface finish and precise dimensional tolerances are required. However, if the grinding wheels have cracks, they may lead to a hazardous working environment and produce ...
Yubin Lee +3 more
doaj +3 more sources
Effect of Hammer Type on Generated Mechanical Signals in Impact-Echo Testing [PDF]
Materials, 2021 The impact-echo diagnostic method is a well-known nondestructive pulse compression test method, which can be relatively easily used for the testing of concrete and reinforced concrete elements. The evaluation of the measurement with this method is based on the analysis of the signal itself in the time and frequency domains.
Libor Topolar +2 more
exaly +4 more sources
Prediction of the Physical Properties of a Structural Member by the Impact Hammer Test
Sensors, 2022 The frequency response function (FRF) in the frequency domain is a black box used to collect physical information and to indicate the modal characteristics of a dynamic system. Analyzing the collected FRF data through the impact hammer test, dynamic parameters, such as stiffness, mass, and the damping matrix, can be estimated.
Hee-Chang Eun +2 more
exaly +4 more sources
Experimental Characterization of the Torsional Damping in CFRP Disks by Impact Hammer Modal Testing [PDF]
Polymers, 2020 Composite materials are widely used for their peculiar combination of excellent structural, mechanical, and damping properties. This work presents an experimental study on the dissipation properties of disk-shaped composite specimens exploiting vibration tests.
Giuseppe Serratore +2 more
exaly +3 more sources
FirePhysChem, 2022 Studying the stress propagation and damage mechanism for the mechanical environment of the gun bore is an important way to popularize and apply the new propellant.
Ruihua Zhang +4 more
doaj +1 more source
Research on the Drop Hammer Impact Test System
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The drop hammer impact test system adopts the multi-purpose and modular design to solve the four problems of the airbag door of automobile test instrument panel: the test conditions are generally inconsistent with the actual conditions; The secondary impact problem exists in the collision test.
Zhiming Wang +2 more
openaire +1 more source
Re-examination of dynamic load tests on piles
Yantu gongcheng xuebao, 2023 The dynamic load test (DLT) and the rapid load test (RLT) on piles both pursue the full activation of pile capacity during the impact event and evaluate the pile capacity by measuring and analyzing the impact excitation and response signals of pile top ...
CHEN Fan 1, 2, WEN Zhentong 1, XIE Xiaofeng 1, LI Jianmin 2
doaj +1 more source
Validation of a laboratory method for evaluating dynamic properties of reconstructed equine racetrack surfaces. [PDF]
PLoS ONE, 2012 Racetrack surface is a risk factor for racehorse injuries and fatalities. Current research indicates that race surface mechanical properties may be influenced by material composition, moisture content, temperature, and maintenance.
Jacob J Setterbo +6 more
doaj +1 more source
PENDULUM IMPACT HAMMER TESTS ON TIMBER BEAMS - EXPERIMENTAL SETUP
World Conference on Timber Engineering (WCTE 2023), 2023 World Conference on Timber Engineering WCTE ...
Cao, Alex Sixie; id_orcid0000-0002-8455-5892 +1 more
openaire +2 more sources
Experimental study on dynamic response of hammer in underwater tube dynamic compaction stone column
Yantu gongcheng xuebao, 2023 A series of model tests on underwater tube dynamic compaction gravel pile are conducted. The effects of hammer shape, tamping energy, single filling amount and soil strength on the installation and performance of the stone column are studied. The changes
WANG Xin 1, REN Yuxiao 1, 2, GUO Wei 1, 2, XU Hao 1, KANG Yifei 1
doaj +1 more source