Results 41 to 50 of about 6,089 (210)

Dynamic characteristics of combined coal rock based on RSM–BBD

Meitan kexue jishu
The inherent instability of deep coal rock masses and coal-rock composite bearing structures significantly contributes to coal rock dynamic disasters in mines.
Beijing XIE, Zheng LUAN, Heng LI, Bowen WU, Xiaoxu LI, Changhao CHENG   +5 more
doaj   +1 more source

High-strain-rate mechanical response of HTPE propellant under SHPB impact loading

AIP Advances, 2021
The high-strain-rate dynamic response of a hydroxyl-terminated polyether (HTPE) propellant during impact loading is essential for assessing the structural reliability and impact safety of HTPE propellant.
Heng-ning Zhang, Hai Chang, Jun-qiang Li, Xiao-jiang Li, Han Wang   +4 more
doaj   +1 more source

Influence of loading and unloading effect on mechanical properties of impact rock under impact load

Meitan xuebao
In order to study the effect of basic roof period pressure on the dynamic characteristics of impact pillar, one-dimensional dynamic and static combined loading SHPB experimental device is used to carry out dynamic impact experiment on the impact ...
Jianhang CHEN, Banquan ZENG, Junwen ZHANG   +2 more
doaj   +1 more source

Wave propagation through alumina-porous alumina laminates

, 2014
A Brazilian disk geometry of an alumina layered composite with alternating dense and porous layers was dynamically loaded using a Split-Hopkinson Pressure Bar (SHPB)apparatus under compression.
Kriven, Waltraud M., Lambros, John, On, Tommy, Santos, Christian J. Espinoza, Sellappan, Pathikumar, Wang, Erheng   +5 more
core   +1 more source

Study on dynamic splitting and evolution mechanism of sandstone under freeze-thaw cycle

矿业科学学报
This study attempts to investigate the dynamic tensile mechanical properties of sandstone under freeze-thaw cycle by using the split Hopkinson pressure bar (SHPB)test system to perform dynamic splitting tests on sandstone samples with freeze-thaw cycle 0,
YANG Guoliang, SHANG Zhuo, ZOU Zehua, BI Jingjiu, DONG Zhiwen   +4 more
doaj   +1 more source

Experimental study on dynamic behavior analysis of coal and its acoustic emission response characteristics under impact failure

Deep Underground Science and Engineering, EarlyView.
Based on acoustic emission response characteristics, it can be more accurate to identify the damage evolution process of coal under the combined dynamic and static loads, reveal the moment corresponding to coal damage, and identify the characteristics of coal failure. The research results are conducive to the further use of acoustic emission monitoring
Wei Zhang, Huijian Fu, Yingke Liu, Zhaoxi Long, Yang Liu, Tengrui Yang, Yanbo Sun, Mingjun Jiang, Xiaojiang Wen, Yue Niu, Ruixi Cheng   +10 more
wiley   +1 more source

A framework for analyzing hyper-viscoelastic polymers

, 2017
Hyper-viscoelastic polymers have multiple areas of application including aerospace, biomedicine, and automotive. Their mechanical responses are therefore extremely important to understand, particularly because they exhibit strong rate and temperature ...
Siviour, Clive, Trivedi, Akash
core   +1 more source

Design of a split Hopkinson pressure bar with partial lateral confinement [PDF]

, 2016
This paper presents the design of a modified split Hopkinson pressure bar (SHPB) where partial lateral con- finement of the specimen is provided by the inertia of a fluid annulus contained in a long steel reservoir.
Andrew D Barr, Andrew Tyas, Barr A D, Clarke S D, Frew D J, Gray G TIII ed Medlin D, Hallquist J O, James A Warren, Lu H, Pierce S J, Sam D Clarke, Sam E Rigby, Tyas A   +12 more
core   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Dynamic mechanical properties and damage characteristics of satin weave carbon fiber fabric resin based composite material

Cailiao gongcheng
The dynamic mechanical properties of satin weave carbon fiber fabric resin based composite material Q/2AJ1011 in the warp and weft directions are studied using a split Hopkinson pressure bar （SHPB） experimental device at six temperatures ranging from -55
GAN Chuncheng, WU Xian, GUO Chunhuan, BIAN Xiaoyan, SHAO Shuaiqi, LIU Mingliang, WANG Zhenqiang   +6 more
doaj   +1 more source