Results 31 to 40 of about 3,946,620 (362)

Breakdown of the superplastic deformation behavior of heterogeneous nanomaterials at small length scales

open access: yesMaterials Research Letters, 2021
Ultrafine-grained and nanocrystalline materials frequently show an enhanced rate sensitivity of their mechanical behavior, which is generally assumed to be the consequence of interface sliding or thermally activated dislocation processes at the ...
Patrick Feldner   +2 more
doaj   +1 more source

Influence of loading rate, alkali fibre treatment and crystallinity on fracture toughness of random short hemp fibre reinforced polylactide bio-composites [PDF]

open access: yes, 2011
Plane-strain fracture toughness (KIc) of random short hemp fibre reinforced polylactide (PLA) bio-composites was investigated along with the effect of loading rate, fibre treatment and PLA crystallinity.
Alan Fernyhough   +7 more
core   +1 more source

Effect of strain rate on mechanical response and failure characteristics of horizontal bedded coal under quasi-static loading

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
The evolution of strength, deformation, energy accumulation and failure characteristics in the range of quasi-static strain rates is revealed. The concept of strain rate effect invisible area in the quasi-static range is proposed, with the correlation ...
Yunpei Liang   +3 more
semanticscholar   +1 more source

Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation [PDF]

open access: yes, 2018
Nanoindentation experiments were performed at room temperature on pressure-less sintered silver nanoparticles (AgNP) samples. Two representative die attach solder materials: sintered electrically conductive silver adhesive and conventional Sn-3.0Ag ...
冯义辉   +5 more
core   +1 more source

Evolution of penetration mechanism induced by strain rate effect

open access: yesEPJ Web of Conferences, 2018
According to the dynamic mechanical properties, in the striking velocity range, the strain rate of the projectile and target caused by penetration can reach 104~106 /s. The strain rate effect increases sharply and then tends to saturation.
Li Gan, Song Chunming, Wang Mingyang
doaj   +1 more source

A constitutive model for analyzing martensite formation in austenitic steels deforming at high strain rates [PDF]

open access: yes, 2012
This study presents a constitutive model for steels exhibiting SIMT, based on previous seminal works, and the corresponding methodology to estimate their parameters.
FERNANDEZ-SAEZ, José   +5 more
core   +1 more source

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

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

Ductile to brittle transition of fracture of a Zr-based bulk metallic glass: Strain rate effect [PDF]

open access: yes, 2016
Quasi-static and dynamic tensile experiments were conducted on a Zr-based bulk metallic glass at room temperature. A significant ductile-to-brittle transition was identified with increasing strain rate, based on the changes in the macroscopic fracture ...
Li G   +6 more
core   +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  

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