Results 51 to 60 of about 19,178,039 (347)

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

Parents of Youth With Cancer Report on Their Psychosocial Care: iSTEPPP Survey Finds Alignment and Gaps With Standards

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families guide the provision of comprehensive psychosocial care. Parallel to research characterizing implementation of the Standards from the perspective of providers, this study examines implementation of the Standards from the perspective of parents of youth ...
Emily M. Pariseau   +8 more
wiley   +1 more source

Neurocognitive, School‐Based, and Quality of Life Outcomes for Youth With Sickle Cell Disease and Thalassemia: A Scoping Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT The medical burdens of sickle cell disease (SCD) and transfusion‐dependent β‐thalassemia (TDT) are chronic and cumulative, even in children. Yet the effects expand beyond medications and healthcare visits due to their impacts on school attendance, academic performance, and peer engagement.
Mary Ann Etling   +2 more
wiley   +1 more source

Full-field strain measurement and identification of composites moduli at high strain rate with the virtual fields method [PDF]

open access: yes, 2010
The present paper deals with full-field strain measurement on glass/epoxy composite tensile specimens submitted to high strain rate loading through a split Hopkinson pressure bar (SHPB) device and with the identification of their mechanical properties ...
MOULART, Raphaël   +15 more
core   +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

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

High Strain Rate Response of Sandstones with Different Porosity under Dynamic Loading Using Split Hopkinson Pressure Bar (SHPB)

open access: yesApplied Sciences
This article presents the results of dynamic tests of sandstone samples differing in strength parameters and porosity, which were carried out with the use of the split Hopkinson pressure bar (SHPB).
Grzegorz Stopka   +4 more
doaj   +1 more source

Strain rate effect on fault slip and rupture evolution: Insight from meter-scale rock friction experiments

open access: yes, 2017
We conduct meter-scale rock friction experiments to study strain rate effect on fault slip and rupture evolution. Two rock samples made of Indian metagabbro, with a nominal contact dimension of 1.5 m long and 0.1 m wide, are juxtaposed and loaded in a ...
Shi-Qing Xu   +5 more
semanticscholar   +1 more source

Measuring the Effect of Strain Rate on Deformation and Damage in Fibre-Reinforced Composites: A Review

open access: yesJournal of Dynamic Behavior of Materials, 2022
This review aims to assess publications relevant to understanding the rate-dependent dynamic behaviour of glass- and carbon-fibre reinforced polymer composites (FRPs).
J. Perry, S. Walley
semanticscholar   +1 more source

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