Results 81 to 90 of about 4,530 (208)

Wave Attenuation and Dispersion in a 6 mm Diameter Viscoelastic Split Hopkinson Pressure Bar and Its Correction Method

Shock and Vibration, 2020
The propagation characteristics of viscoelastic waves have been investigated with a 6 mm diameter split Hopkinson pressure bar (SHPB) made of polymethyl methacrylate (PMMA).
Haotian Zhang, Linjian Ma, Zongmu Luo, Ning Zhang   +3 more
doaj   +1 more source

Investigation of the Mechanical Behaviors of Waterborne Polyurethane: The Critical Influence of Hard Segment Content Over Various Strain Rates

Macromolecular Materials and Engineering, Volume 310, Issue 9, September 2025.
This study explores how hard segment content (HS) modulates waterborne polyureathane's (WPU's) dynamic mechanical properties under low/high strain rates. Increasing HS enhances hydrogen bonding and microphase separation, with abundant hard domains acting as physical crosslinks.
Mingping Zhou, Jiaqiang Xiong, Dingzhe Che, Qiang Wu, Shichao Zhang, Denghui Wang, Fei Gao, Zheng Zhang, Jiping Yang   +8 more
wiley   +1 more source

Rock Dynamic Fracture Characteristics Based on NSCB Impact Method

Shock and Vibration, 2018
In 2012, the International Society for Rock Mechanics (ISRM) recommended a new Notched Semicircular Bend (NSCB) method for the determination of dynamic fracture toughness of rock materials, but it did not consider the effect of some uncontrollable ...
Yanbing Wang
doaj   +1 more source

Effects of the loading direction on high strain rate behavior of woven graphite/epoxy composites [PDF]

, 2012
Effects of the loading direction on high strain rate behavior of cylindrical woven graphite/epoxy composites are presented. Compressive split Hopkinson pressure bar (SHPB) was used for high strain rate experiments.
Allazadeh, Mohammad R., Turan, Fatih, Wosu, Sylvanus N.   +2 more
core   +1 more source

Highly Oriented Bio‐Mimetic Hydrogels by Calendering

Advanced Science, Volume 12, Issue 30, August 14, 2025.
A facile and scalable organogel‐assisted calendering strategy is proposed to prepare bio‐mimetic anisotropic polyvinyl alcohol (PVA) hydrogels. By employing a combination of shearing and annealing during calendering, PVA chains are aligned in the calendering direction, while the compression in thickness facilitates the formation of a nacre‐like ...
Zhanqi Liu, Yuqing Wang, Haidi Wu, Huamin Li, Longcheng Tang, Guo Wang, Daxin Zhang, Jianping Yin, Yinggang Miao, Yongqian Shi, Pingan Song, An Xie, Xuewu Huang, Wancheng Gu, Yiu Wing Mai, Jiefeng Gao   +15 more
wiley   +1 more source

Numerical Study of Dynamic Behaviors of Concrete Under Various Strain Rates

Archives of Civil Engineering, 2019
As the dynamic behavior of the concrete is different from that under static load, this research focuses on the study of dynamic responses of concrete by simulating the split Hopkinson pressure bar (SHPB) test.
An H.M., Liu L.
doaj   +1 more source

Study on Energy Evolution Law of Rocks With Different Lithologies and Sizes

Energy Science &Engineering, Volume 13, Issue 8, Page 4199-4210, August 2025.
ABSTRACT Investigating the actual patterns of energy accumulation and release in roof rock, particularly with varying stiffnesses in mining environments, is crucial. By conducting cyclic loading and unloading tests on rock samples of different lithologies, different sizes, and consistent stiffness, how lithology, size, and stiffness affect the ...
Yanchun Yin, Zitong Gao, Zhigang Zhao, Shudong He, Liyuan Liu, Guoying Li   +5 more
wiley   +1 more source

Dynamic tests on a cohesive and frictional material. Influence of high pressure and high strain rate on compaction and shear. [PDF]

, 2009
International audienceMany of aggregate composites are made of small size particles mixed with a highly compliant rubbery polymer. When the loading leads to high pressures, the behaviour gets closer to this of cohesive, frictional, and compactable ...
Bailly, Patrice, Biessy, Maxime, Delvare, Franck, Picart, Didier   +3 more
core   +3 more sources

Investigating the Dynamic Behavior of Gabbro Specimens With Echelon Joints

Energy Science &Engineering, Volume 13, Issue 7, Page 3620-3630, July 2025.
Investigating the dynamic behavior of rock specimens with echelon joints based on SHPB tests. ABSTRACT To reveal the influence of dynamic load on the dynamic damage behavior of jointed rock masses, split Hopkinson pressure bar (SHPB) system was employed to test platy gabbro samples with joint angles of 15°, 30°, 45°, 65°, and 75° at an impact pressure ...
Lei Xue, Shihao Yuan, Kangqi Liu, Longfei Li, Kun Huang, Zhuan Li   +5 more
wiley   +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 ...
LI XiaoQin, CHEN BaoQi, DU Xi, DING ZuDe
doaj