Results 61 to 70 of about 1,369 (158)

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

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

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 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  

A critical review of the article: Experimental investigation of the effect of infill parameters on dynamic compressive performance of 3D-printed carbon fiber reinforced polyethylene terephthalate glycol composites

Entreciencias: Diálogos en la Sociedad del Conocimiento
Understanding the dynamic properties of 3D-printed materials subjected to high strain rates enables designers and engineers to obtain engineering data for designing components subjected to dynamic loads.
José Guadalupe Zavala Villalpando, Juan José Martínez Nolasco, Luis Alejandro Alcaraz Caracheo   +2 more
doaj   +1 more source

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

Advances 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, Ke Gao, Jian Liu, Yujiao Liu, Zhenyu Zhang, Xiang Fan, Xuyan Yin, Yongliang Zhang, Gun Huang   +8 more
doaj   +1 more source

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

International 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, Enyuan Wang, Xia Chen, Houcheng Ding   +3 more
doaj   +1 more source

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

Applied 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, Yipeng Wang, Shunhai Li, Yujia Huo, Weishan Liu   +4 more
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

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

Shock 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