Results 71 to 80 of about 1,913 (181)

Development of the split-Hopkinson pressure bar and its application in testing the dynamic mechanical properties of quasi-brittle materials: A review

Journal of Materials Research and Technology
The Split-Hopkinson Pressure Bar (SHPB) apparatus is extensively used in rock mechanics to conduct dynamic research, with continuous advancements in the SHPB testing system leading to significant progress in understanding the dynamic properties of ...
Shizhuo Zou, Yongtao Gao, Zhiran Yang, Chao Yang, Lingyun Qian, Yu Zhou   +5 more
doaj   +1 more source

Dynamic tensile deformation and fracture of a highly particle-filled composite using SHPB and high-speed DIC method

EPJ Web of Conferences, 2012
In this work, various tensile tests, including Brazilian disc test (BDT), flattened Brazilian disc (FBD) test and semi-circular bending (SCB) test, were carried out on a highly particle-filled composite by using a split Hopkinson pressure bar (SHPB ...
Huang F., Guo B., Chen P., Zhou Z.
doaj   +1 more source

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

한국정밀공학회지
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

Stress Uniformity Analyses on Nonparallel End-Surface Rock Specimen during Loading Process in SHPB Tests

Advances in Civil Engineering, 2018
To investigate the influence of nonparallel end-surface on stress uniformity during loading process in rock SHPB test, SHPB numerical simulations have been carried out by LS-DYNA when end-face nonparallelism is within 0.40% and Young’s modulus ranges ...
Pu Yuan, Qin-yong Ma, Dong-dong Ma
doaj   +1 more source

Numerično modeliranje in validacija shpb preizkuševališča

, 2017
V okviru magistrskega dela je bil zgrajen numerični model SHPB preizkuševališča v programskem paketu LS-Dyna. Na podlagi eksperimentalno zajetih in obdelanih signalov izvedenih mehanskih preizkusov je bila izvedena validacija numeričnega modela. Za določanje dinamičnih mehanskih materialnih lastnosti je bil uporabljen inverzni postopek.
openaire   +1 more source

Crack Detection and Evolution Law for Rock Mass under SHPB Impact Tests

Shock and Vibration, 2019
In order to accurately identify and quantitatively calculate the surface cracks of rock mass under SHPB impact loading, an automatic crack detection algorithm was proposed and evaluated by the experiment.
Xie Beijing, Dihao Ai, Yu Yang
doaj   +1 more source

Experimental study on granite and the determination of its true strain-rate effect

Latin American Journal of Solids and Structures
To accurately determine the true strain-rate effect of granite in split Hopkinson pressure bar (SHPB) tests, systematic experimental studies from quasi-static to dynamic loading on the same batch of granite samples is required.
Yong Cai, Shuisheng Yu, Yubin Lu
doaj   +1 more source

NUMERICAL SIMULATION OF SHPB DYNAMIC COMPRESSION TEST OF CONCRETE

Jixie qiangdu, 2018
Split Hopkinson pressure bar（SHPB） tests are widely used for testing material mechanism behavior under high strain rates,A series of SHPB numerical tests were done based on K＆C local concrete damage model,The stress-strain curves of the concrete specimens were reconstructed with the two-wave theory,and the damage of the concrete was analyzed.According ...
LI XiaoQin, CHEN BaoQi, DU Xi, DING ZuDe
openaire   +1 more source

Konstruiranje, gradnja in umerjanje SHPB preizkuševališča

, 2015
Split Hopkinson Pressure Bar test allows us to determine mechanical characteristic of materials, at strain rates ranging from 10^2to 8 x 10^3 s-1. Metalic material can whitstand much higher loads at such high strain rates, but they can whitstand it for a shorter period of time.
openaire   +1 more source

Study on Dynamic Mechanical Properties and Constitutive Model of Z-Shaped Steel Wire for Sealing Cable. [PDF]

Materials (Basel)
Shen KY, Fan F, Zhi XD, Zhang R.
europepmc   +1 more source