Results 1 to 10 of about 230 (178)

Drop Hammer Impact Test on Concrete Well Walls After Combined Action of Compressive Load and Sulfate Erosion

open access: yesBuildings
The long-term safety of concrete shaft walls in deep mines faces severe challenges from the coupled effects of stress, chemical erosion, and dynamic disturbances. This study conducted coupled loading and sulfate erosion tests on concrete and investigated
Tongxing Guo   +3 more
doaj   +4 more sources

Impact Response Test and Ignition Characteristics of HMX/Al Energetic Composites Based on the Force–Electric Coupling Method under a Drop Hammer

open access: yesACS Omega
HMX/Al is an energetic composite formed during the manufacturing and processing of mixed explosives, and its safety has been explored under the action of force and electrostatic field. In order to investigate the impact response and ignition characteristics of HMX/Al energetic composites based on the force-electric coupling method, a self-designed ...
Junming Yuan   +5 more
doaj   +3 more sources

Mechanical Response of Additively Manufactured Composite Joints [PDF]

open access: yesProblemy Mechatroniki, 2023
This paper aims to assess the quality of composite joints made with the Fused Filament Fabrication (FFF) additive manufacturing technique through strength tests.
Kamil RAJKOWSKI (kamil.rajkowski@wat.edu.pl)   +1 more
doaj   +1 more source

Test and simulation study of the effect of transverse impact stress on the rosette 19-hole gun propellant under low temperature

open access: yesFirePhysChem, 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

open access: yesIOP 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

open access: yesYantu 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

Plastic Response and Failure of the Cruciform Structure under In-Plane Load

open access: yesJournal of Marine Science and Engineering, 2023
In this study, a common cruciform structure in ship hulls was designed and experimented with in order to analyze its deformation characteristics under planar collision and quasi-static loading.
Xiufei Wang   +3 more
doaj   +1 more source

Experimental and Numerical Investigation of Steel Sections under Impact Effect

open access: yesGrađevinar, 2021
Experimental and numerical behaviour of steel test specimens with various types of joints is investigated in this study. A drop weight test setup with necessary test equipment is used for this purpose.
Engin Gücüyen   +3 more
doaj   +1 more source

Analysis of fracture energy in drop weight tear testing of API X65 gas pipeline steel

open access: yesJournal of Pipeline Science and Engineering, 2021
In this research, the effect of low velocity impact (LVI) on different components of fracture energy of API X65 gas pipeline steel is investigated using drop weight tear test (DWTT) specimens.
E. Fathi, S.H. Hashemi
doaj   +1 more source

Effect of Impact Load on Splice Length of Reinforcing Bars

open access: yesInternational Journal of Concrete Structures and Materials, 2020
Impact loading damage of reinforced concrete (RC) members deteriorates bond strength of reinforcing bars. To understand the effect of strain rate on the bond strength of reinforcing bars in RC beams under impact load, drop hammer test was performed on ...
Hyeon-Jong Hwang   +4 more
doaj   +1 more source

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