Results 51 to 60 of about 1,322 (132)

PREPROCESSING OF HOPKINSON BAR EXPERIMENT DATA: FILTER ANALYSIS

open access: yesActa Polytechnica CTU Proceedings, 2018
This work presents a data preprocessing procedure for signal acquired during high strain-rate loading using a custom Split Hopkinson Pressure Bar (SHPB).
Marcel Adorna   +3 more
doaj   +1 more source

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

open access: yesShock 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   +3 more
doaj   +1 more source

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

open access: yesDeep 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

Rock Dynamic Fracture Characteristics Based on NSCB Impact Method

open access: yesShock 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

Numerical Study of Dynamic Behaviors of Concrete Under Various Strain Rates

open access: yesArchives 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

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

open access: yesMacromolecular 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   +8 more
wiley   +1 more source

Highly Oriented Bio‐Mimetic Hydrogels by Calendering

open access: yesAdvanced 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   +15 more
wiley   +1 more source

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

open access: yesEnergy 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   +5 more
wiley   +1 more source

NUMERICAL SIMULATION OF SHPB DYNAMIC COMPRESSION TEST OF CONCRETE

open access: yesJixie 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

open access: yesEntreciencias: 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   +2 more
doaj   +1 more source

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