Results 61 to 70 of about 1,921 (182)

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

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

Pandemic Geographies of Home: Domestic Thresholding in Response to COVID‐19

Transactions of the Institute of British Geographers, Volume 51, Issue 2, June 2026.
Short Abstract With the home at the forefront of political and public health responses to COVID‐19, the thresholds between domestic space and the world beyond acquired a new significance in people's everyday lives. This paper introduces the concept of ‘thresholding’ to explore the ways in which internal and external thresholds are understood and ...
Alison Blunt, Kathy Burrell, Annabelle Wilkins, Georgina Endfield, Miri Lawrence, Eithne Nightingale, Alastair Owens, Jacqueline Waldock   +7 more
wiley   +1 more source

Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading

Polymer Composites, Volume 47, Issue 9, Page 8273-8287, 10 May 2026.
Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading. ABSTRACT The mechanical behavior of short carbon fiber reinforced polylactic acid (SCF/PLA) composites fabricated by fused deposition modeling (FDM) is crucial for engineering applications, yet their strain‐rate dependence is not fully understood.
Hui Liu, James P. Dear, Jin Zhou, Yugang Duan, Zhongwei Guan, Wesley J. Cantwell, John P. Dear   +6 more
wiley   +1 more source

Mapping Nanoscale Buckling in Atomically Thin Cr2Ge2Te6

Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Atomic‐resolution STEM is used to resolve nanoscale buckling in monolayer Cr2Ge2Te₆. A noise‐robust image analysis reconstructs three‐dimensional lattice distortions from single plan‐view images, revealing pronounced defect‐driven nm‐scale out‐of‐plane buckling.
Amy Carl, Nicholas Clark, David G. Hopkinson, Matthew Hamer, Matthew Watson, Laxman Nagireddy, James E. Nunn, Alexei Barinov, Yichao Zou, William Thornley, Casey Cheung, Wendong Wang, Sam Sullivan‐Allsop, Xiao Li, Astrid Weston, Eli G. Castanon, Andrey V Kretinin, Cephise Cacho, Neil R. Wilson, Sarah J. Haigh, Roman Gorbachev   +20 more
wiley   +1 more source

Study of adiabatic localized shear in metals by split Hopkinson pressure bar method

EPJ Web of Conferences, 2011
This paper is devoted to the technique for study of localized shear using hat-shaped samples by the split Hopkinson pressure bar (SHPB) method. Also it is devoted to results obtained in tests with samples of copper M1 and steel 09G2S.
Kal’manov A., Podurets A., Bol’shakov A., Yurlov A., Pushkov V., Koshatova E.   +5 more
doaj   +1 more source

Impact Behavior of Recycled Aggregate Concrete Based on Split Hopkinson Pressure Bar Tests

Advances in Materials Science and Engineering, 2013
This paper presents the experimental results of recycled aggregate concrete (RAC) specimens prepared with five different amounts of recycled coarse aggregate (RCA) (i.e., 0, 25%, 50%, 75%, and 100%) subjected to impact loading based on split Hopkinson ...
Yubin Lu, Xing Chen, Xiao Teng, Shu Zhang   +3 more
doaj   +1 more source

Numerical Simulation for Bar Straightness Effect in Split Hopkinson Pressure Bar

Procedia Engineering, 2017
Abstract Bars alignment in a Split Hopkinson Pressure Bar influences the quality of signal recorded during experiments, and thus affects the data of material properties being measured. There are some parameters directly related to the bars alignment such as their straightness, the impact face parallelism, and the neutral axis offset.
Afdhal, , Gunawan, Leonardo, Kariem, M.A., Dirgantara, Tatacipta, Putra, I.S.   +4 more
openaire   +1 more source

Dynamic Covalent Networks of Molecular Clusters for Hard and Impact‐Resistant Glass with Feasible Processability

Advanced Science, Volume 13, Issue 27, 13 May 2026.
Molecular granular material glass is fabricated by crosslinking sub‐nm POSS clusters with dynamic borate ester bonding while the materials combine high transparency, modulus, and hardness with superior impact resistance and (re)processability, offering a promising strategy for creating robust yet highly processable organic glasses.
Haiyan Xiao, Jia‐Fu Yin, Linjie Lan, Wei Liu‐Fu, Panchao Yin   +4 more
wiley   +1 more source

Effect of structurally-induced lateral confinement on split Hopkinson pressure bar test specimens of concrete-like materials

EPJ Web of Conferences, 2015
In dynamic testing of concrete-like materials, there is a need in distinguishing structural effects from genuine strain-rate effects. In this paper, this generic problem is studied by numerical simulations based on a phenomenological material model ...
Flores-Johnson E.A., Li Q.M.
doaj   +1 more source