Results 61 to 70 of about 4,423 (210)

Cellulose Nanocrystal‐Reinforced Waterborne Polyurethane Composites with Excellent Dynamic Impact Resistance

Macromolecular Materials and Engineering, Volume 310, Issue 12, December 2025.
The hydrogen‐bond‐enhanced CNC/WPU nanocomposites, fabricated via solution casting, exhibited a 59.6% increase in elastic modulus (5.57 ± 0.46 GPa), 29.9% higher energy absorption (165.2 ± 6.7 MJ·m−3), and a 36.21% improvement in maximum engineering stress (545.5 ± 17.5 MPa) at 0.5 wt.% CNC.
Mingping Zhou, Dingzhe Che, Shichao Zhang, Qiang Wu, Denghui Wang, Yuan Li, Fei Gao, Jiping Yang, Zheng Zhang   +8 more
wiley   +1 more source

Dynamic Fracture Toughness of TaC/CNTs/SiC CMCs Prepared by Spark Plasma Sintering

Advances in Materials Science and Engineering, 2015
This study focuses on the fracture toughness of TaC and carbon nanotubes (CNTs) reinforced SiC ceramic matrix composites (CMCs), prepared by spark plasma sintering (SPS) technique.
Qiaoyun Xie, Sylvanus N. Wosu
doaj   +1 more source

Development of a Hopkinson bar apparatus for testing soft materials: application to a closed-cell aluminum foam [PDF]

, 2016
An increasing interest in lightweight metallic foams for automotive, aerospace and other applications has been observed in recent years. This is mainly due to the weight reduction that can be achieved using foams and for their mechanical energy ...
BABCSAN Norbert, PERONI MARCO, SOLOMOS George   +2 more
core   +1 more source

Deformation Behaviors in Single BCC‐Phase Refractory Multi‐Principal Element Alloys under Dynamic Conditions

Advanced Science, Volume 12, Issue 36, September 25, 2025.
Exceptional mechanical stability of refractory multi‐principal element alloy (RMPEA) across various strain‐rates and temperature is studied through multiscale experiments coupled with theoretical calculations. This stability originates from competition between twinning and adiabatic heating during dynamic deformation, contributed from severe lattice ...
Chanho Lee, Deva Prasaad Neelakandan, Dongyue Xie, Juntan Li, Chia‐Yi Wu, Aomin Huang, Leeseung Kang, Shuozhi Xu, Barton C. Prorok, Dong‐Joo Kim, Marc A. Meyers, Haixuan Xu, Peter K. Liaw, Yi‐Chia Chou, Ke An, George T. Gray III, Nan Li, Gian Song, Saryu J. Fensin   +18 more
wiley   +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

High strain rate tensile testing of sheet materials using three Hopkinson pressure bars

EPJ Web of Conferences, 2012
In an attempt to circumvent the inherent problems associated with Split Hopkinson Tensile Bar (SHTB) systems, a new experimental technique is proposed for the high strain rate tensile testing of sheet specimens in Split Hopkinson Pressure Bar (SHPB ...
Gary G., Dunand M., Mohr D.
doaj   +1 more source

Experimental Study on the Dynamic Mechanical Properties of Large-Diameter Mortar and Concrete Subjected to Cyclic Impact

Shock and Vibration, 2020
Rock bursts are typically accompanied by multiple shocks. In order to explore the dynamic characteristics of filling materials in rock burst roadways, we employ the split Hopkinson pressure bar (SHPB) test to analyze the dynamic mechanical response of ...
Bi Sun, Yang Ping, Zhende Zhu, Zhijian Jiang, Nan Wu   +4 more
doaj   +1 more source

A review of multiscale numerical modeling of rock mechanics and rock engineering

Deep Underground Science and Engineering, Volume 4, Issue 3, Page 382-405, September 2025.
Multiscale numerical methods of rock mechanics and rock engineering are reviewed, and the review results show that more attention should be paid to the development of an advanced constitutive model in addition to numerical techniques themselves. Abstract Rock is geometrically and mechanically multiscale in nature, and the traditional phenomenological ...
Xindong Wei, Zhe Li, Gaofeng Zhao
wiley   +1 more source

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

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