Results 21 to 30 of about 1,118,595 (265)

A Novel Electromechanical Apparatus for Intermediate Strain-Rate Testing and Validation on Polycarbonate

open access: yesApplied Sciences
The characterization of material behavior under intermediate deformation rates remains a major challenge, since conventional testing devices are mainly developed for either quasi-static or high strain-rate conditions.
Sara Ricci   +5 more
doaj   +1 more source

STRAIN-RATE EFFECT ON THE STRESS CONCENTRATION IN A 45 STEEL PLATE WITH AN ELLIPTIC HOLE

open access: yesJixie qiangdu, 2020
Stress concentration caused by holes in a component is always an important research topic in structural safety assessment. Many studies have been carried out on linear elastic materials under static loading,including the effects of hole shape,material ...
ZHANG Jin   +4 more
doaj  

Mechanical Response of CNT/2024Al Composite to Compression and Tension at Different Strain Rates

open access: yesMetals, 2023
Compressive and tensile properties of a carbon nanotube (CNT) reinforced 2024Al composite are investigated under quasi-static and dynamic compression as well as quasi-static tension, along three different directions (extrusion, normal and transverse ...
Jiajie Xiang   +3 more
doaj   +1 more source

Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates

open access: yesLatin American Journal of Solids and Structures
This paper studies the stiffening effects of the material strain rate sensitivity and strain hardening on the saturated impulse of elastic, perfectly plastic plates.
Ling Zhu, Xu He, F. L. Chen, Xueyu Bai
doaj   +1 more source

Strain-rate effects associated with the HJC concrete model

open access: yesEPJ Web of Conferences, 2018
The Holmquist-Johnson-Cook (HJC) model for concrete was presented in 1993 and has been used extensively since that time. Since then a third invariant effect has been added and the shear modulus has been revised to vary such that Poisson's ratio is held ...
Johnson Gordon   +2 more
doaj   +1 more source

Small Strain Behavior of Geomaterials: Modelling of Strain Rate Effects

open access: yesSoils and Foundations, 1997
ABSTRACT Experimental results for sand, gravel, sedimentary soft rock and stiff clay are presented which show that even at small strain levels (less than about 0.001%), these geomaterials exhibit nearly linear elastic behavior, but creep deformation and stress relaxation are not negligible.
BENEDETTO, HERVE DI, TATSUOKA, FUMIO
openaire   +2 more sources

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Strain Rate Effect on Artificially Cemented Clay with Fully Developed and Developing Structure

open access: yesApplied Sciences
The rapid expansion of land reclamation necessitates a fundamental understanding of the strain rate effects on structured clays. While the rate effect has been widely studied in various soils, the interplay between bond structure and strain rate ...
Qiang Li   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

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