Results 61 to 70 of about 4,813 (219)

Design of a Split Hopkinson Pressure Bar facility for dynamic material characterization

, 2019
It is important to know the mechanical response of materials over a full range of strain rates. In machining and stamping, or in ballistic type events such as bullet penetration, shell impacts, and explosive blasts, strain rates of 100 s-1 to 10,000 s-1 ...

core   +1 more source

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

Measurement Science and Technology, 2016
This paper presents the design of a modified split Hopkinson pressure bar (SHPB) where partial lateral con-\ud finement of the specimen is provided by the inertia of a fluid annulus contained in a long steel reservoir. In\ud contrast to unconfined testing, or a constant cell pressure applied before axial loading, lateral restraint is permitted\ud to ...
Barr, A., Clarke, S.D., Rigby, S.E., Tyas, A., Warren, J.A.   +4 more
openaire   +2 more sources

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 426-445, June 2026.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Signal Correction for the Split-Hopkinson Bar Testing of Soft Materials

Dynamics
The Split-Hopkinson pressure bar (SHPB) test is a commonly accepted experiment to investigate the material behavior under high strain rates. Due to the low impedance of soft materials, here, the test has to be performed with plastic bars instead of metal
Sören Bieler, Kerstin Weinberg
doaj   +1 more source

Water-immersion softening mechanism of coal rock mass based on split Hopkinson pressure bar experiment

International Journal of Coal Science & Technology, 2022
The coal mining process is affected by various water sources such as groundwater and coal seam water injection. Understanding the dynamic mechanical parameters of water-immersed coal is helpful for coalmine safe production.
Zhiyuan Liu, Gang Wang, Jinzhou Li, Huaixing Li, Haifeng Zhao, Hongwei Shi, Jianli Lan   +6 more
doaj   +1 more source

Designing a Data Acquisition System for a Split Hopkinson Pressure Bar [PDF]

2015 ASEE Annual Conference and Exposition Proceedings, 2015
Designing a Data Acquisition System for a Split Hopkinson Pressure BarSenior students are always challenged to apply their engineering knowledge and research skillsgained from an engineering curriculum toward design and implementation of challenging seniordesign projects.
Sean Patrick Kirby, Julius Omokiniovo Ejenavi, Payam Matin   +2 more
openaire   +2 more sources

Experimental Investigations on the Energy Absorption of Aluminum TPMS Structures Under Dynamic Loading

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT Triply periodic minimal surfaces (TPMS) constitute a prominent class of cellular structures and have gained considerable attention in current research. These structures are genus‐infinite surfaces with zero mean curvature, which prevents self‐intersection. They also exhibit periodicity in all three spatial directions and exhibit enhanced multi‐
Sören Bieler, Denis Anders, Marcel Walkowiak, Kerstin Weinberg   +3 more
wiley   +1 more source

Low‐Dose Electron Total Scattering Analysis Resolves Non‐Crystalline Phase Separation in Polymer Semiconductors and Device Multilayers

Small Methods, Volume 10, Issue 11, 8 June 2026.
The performance of polymer blend semiconductors is governed by both the degree of phase separation and crystallization, but these two aspects have remained unresolved. We report methods for mapping amorphous‐amorphous as well as amorphous‐crystalline phase separation in polyfluorene‐based polymer blends using spatially resolved nanobeam electron total ...
Sang T. Pham, Adam F. Sapnik, Sean M. Collins   +2 more
wiley   +1 more source

Compressive split Hopkinson pressure bar testing

, 2020
In this era, static mechanical properties such as hardness and strength can usually be found easily from various sources online. However, most of such sources do not provide certain mechanical properties of a material such as strain rate dependant data ...
Chua, Dominick Chi-Yang
core  

Organic Matter Stoichiometry Regulates the Continental Shelf Carbon Pump Efficiency of the Northwest European Shelf Seas

Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.
Abstract Variations in the elemental C:N:P ratios of organic matter (OM) influence the coupling of carbon and nutrient cycles in the ocean. In this study, we assess the relevance of OM C:N:P stoichiometry for regional carbon cycling in the northwest European shelf seas (NWES).
K. T. Demir, M. Mathis, J. Kossack, F. Liu, U. Daewel, C. Stegert, H. Thomas, C. Schrum   +7 more
wiley   +1 more source