Results 61 to 70 of about 1,322 (132)

Experimental and Numerical Evaluation of Rock Dynamic Test with Split-Hopkinson Pressure Bar

open access: yesAdvances in Materials Science and Engineering, 2017
Feasibility of rock dynamic properties by split-Hopkinson pressure bar (SHPB) was experimentally and numerically evaluated with ANSYS/LS-DYNA. The effects of different diameters, different loading rates, and different propagation distances on wave ...
Kang Peng   +8 more
doaj   +1 more source

Energy dissipation rate: An indicator of coal deformation and failure under static and dynamic compressive loads

open access: yesInternational Journal of Mining Science and Technology, 2018
Dynamic disasters in Chinese coal mines pose a significant threat to coal productivity. Thus, a thorough understanding of the deformation and failure processes of coal is necessary.
Junjun Feng   +3 more
doaj   +1 more source

A Machine Learning-based Approach for Classifying Waveform Distortion Due to Misalignment in SHPB Experiments [PDF]

open access: yes한국정밀공학회지
The Split Hopkinson Pressure Bar (SHPB) experiment is commonly employed to assess the dynamic mechanical properties of materials under high strain-rate conditions (10²-10⁴ s-¹) through the propagation of elastic stress waves via pressure bars.
Hyo Sung Hwang, Jeong Kim
doaj   +1 more source

Study on Impact Dynamic Response and Energy Evolution Characteristics of Coal–Rock Composites

open access: yesApplied Sciences
To elucidate the dynamic impact response mechanism and energy evolution principles of coal–rock composites, dynamic impact tests were conducted on coal–medium sandstone and medium sandstone–medium sandstone composites at varying impact velocities ...
Zhitao Ma   +4 more
doaj   +1 more source

Dynamic Mechanical Behavior and Numerical Simulation of Frozen Soil under Impact Loading

open access: yesShock and Vibration, 2016
Split Hopkinson pressure bars (SHBP) were used to perform impact experiments on frozen soil under various impact velocities and temperatures to analyze the effect of these parameters on the mechanical behavior of the soil.
Dan Zhang, Zhiwu Zhu, Zhijie Liu
doaj   +1 more source

Study of adiabatic localized shear in metals by split Hopkinson pressure bar method

open access: yesEPJ Web of Conferences, 2011
This paper is devoted to the technique for study of localized shear using hat-shaped samples by the split Hopkinson pressure bar (SHPB) method. Also it is devoted to results obtained in tests with samples of copper M1 and steel 09G2S.
Kal’manov A.   +5 more
doaj   +1 more source

Using Laplace transform to solve the viscoelastic wave problems in the dynamic material property tests

open access: yesEPJ Web of Conferences, 2015
In relation to the dynamic tests of materials, the approach to solve the viscoelastic wave propagations in a one dimensional viscoelastic rod was summarized.
Zheng Yuxuan, Zhou Fenghua
doaj   +1 more source

DYNAMIC MECHANICAL PROPERTIES OF OXYGEN FREE COPPER UNDER THE IMPACT LOAD

open access: yesJixie qiangdu, 2015
The dynamic mechanical properties of oxygen free copper has been tested under the different strain rate( 2 500s- 1 15 500 s- 1) at the room temperature by split Hopkinson pressure bar( SHPB),the true stress-true strain curves has been obtained. Power-Law
LIU QingFeng   +3 more
doaj  

Approximate Analytic Solution for the Compression and Torsion Process in the Split Hopkinson Pressure Bar

open access: yesEngineering Transactions, 1991
Simplified analysis of the process of dynamical compression and torsion in the system of the Split Hopkinson Pressure Bar (SHPB) is presented. Bilinear relation of stress to strain σ(ε), for the specimen material and time-independence of the incident ...
J.Z. Malinowski
doaj  

Home - About - Disclaimer - Privacy