Results 21 to 30 of about 216,422 (329)

Cracking Assessment of Reinforced Concrete Slab Using Impact Hammer Test

Journal of Structural Monitoring and Built Environment
Impact hammer test is a vibration-based monitoring method used to detect cracking or damage in concrete structures by observing the vibration behavior such as the natural frequency, mode shapes and damping ratio. Damage or cracks in the structure can cause structure failure.
Nuramieza Mohd Yazid, Nor Hayat Abd Ghafar   +1 more
openaire   +3 more sources

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

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, Jihua Liu, Changhui He, Hongli Zhao, Qionglin Wang   +4 more
doaj   +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

Development of Smoothed Particle Hydrodynamics based water hammer model for water distribution systems

Engineering Applications of Computational Fluid Mechanics, 2023
Smoothed Particle Hydrodynamics (SPH) method is used to solve water hammer equations for pipeline systems due to its potential advantages of easily capturing column separation and slug impact.
Wenke Song, Hexiang Yan, Fei Li, Tao Tao, Huanfeng Duan, Kunlun Xin, Shuping Li   +6 more
doaj   +1 more source

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

Journal 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, Kun Liu, Mingcai Xu, Hewei Liu   +3 more
doaj   +1 more source

Simulation Methods for MEMS S&A Devices for 2D Fuze Overload Loading

Micromachines, 2023
An experimental testing system for the two-dimensional (2D) fuze overload loading process was designed to address the loading issues of recoil overload and centrifugal overload in fuze safety and arming (S&A) device.
Zhibo Wu, Yanbing Zhang, Chuanmeng Sun, Lei Feng, Shuangfeng Liu, Bin Jiao   +5 more
doaj   +1 more source

Effect of Impact Load on Splice Length of Reinforcing Bars

International 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, Fan Yang, Li Zang, Jang-Woon Baek, Gao Ma   +4 more
doaj   +1 more source

Investigation on Residual Compressive Distribution of High-Strength Steel for Bridges by Base Metal Hammer Impact Peening

Applied Mechanics, 2021
Various peening techniques have been used to improve the fatigue strength of steel structures. Among them, base metal impact hammer peening shows significant improvement in fatigue strength in ordinary steel, but the effect on high-strength steel has not
Yasuyuki Kurihara, Yoshihiro Sakino, Tomoharu Kato   +2 more
doaj   +1 more source

Experimental study of the mechanical properties of steel fiber stainless-steel reinforced concrete (SFSRC) beams under low velocity impact conditions

Advances in Mechanical Engineering, 2021
In the present study, based on the previous impact resistance test study results regarding stainless steel reinforced concrete beams, six steel fiber stainless-steel reinforced concrete (SFSRC) beams were subjected to drop-hammer impact tests using an ...
Xiwu Zhou, Wen Zhang, Xiangyu Wang
doaj   +1 more source

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

Journal 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