Results 21 to 30 of about 990,252 (305)

Compressive strain rate sensitivity of ballistic gelatin

open access: yesJournal of Biomechanics, 2010
Gelatin is a popular tissue simulant used in biomedical applications. The uniaxial compressive stress-strain response of gelatin was determined at a range of strain rates. In the quasistatic regime, gelatin strength remained relatively constant. With increase in loading rate, the compressive strength increased from 3kPa at a strain rate of around 0 ...
Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA ( host institution )   +2 more
openaire   +3 more sources

Comparison of the Strain Rate Sensitivity in AZ31 and WE43 Magnesium Alloys under Different Loading Conditions

open access: yesCrystals, 2023
The initial texture effect of strain rate sensitivity response in magnesium alloys was studied using the quasi in situ electron backscatter diffraction technique.
Yudong Lei   +6 more
doaj   +1 more source

Thickness-Dependent Strain Rate Sensitivity of Nanolayers via the Nanoindentation Technique

open access: yesCrystals, 2018
The strain rate sensitivity (SRS) and dislocation activation volume are two inter-related material properties for understanding thermally-activated plastic deformation, such as creep. For face-centered-cubic metals, SRS normally increases with decreasing
Jian Song   +3 more
doaj   +1 more source

The Strain Rate Sensitivity of Heterogeneous Thin Film Metallic Glasses: Interplay Between Nanoscale Heterogeneity and Dynamic Plasticity

open access: yesFrontiers in Materials, 2022
The dynamic mechanical properties of metallic glasses (MGs) are crucial to capturing the deformation signatures as well as for structural and functional applications. In this work, we investigate the influence of nanoscale structural heterogeneity of MGs
Yucong Gu, Xiao Han, Feng Yan, Lin Li
doaj   +1 more source

Dynamic pore collapse in viscoplastic materials [PDF]

open access: yes, 1993
Dynamic pore collapse in porous materials is studied by analyzing the finite deformation of an elastic/viscoplastic spherical shell under impulsive pressure loading.
Ravichandran, G., Tong, W.
core   +1 more source

Dynamic Tensile Testing of Ultrahigh Strength Hot Stamped Martensitic Steels [PDF]

open access: yes, 2016
Tensile testing over strain rates of 0.001, 1, 100, and 200 s−1 is performed on three novel ultrahigh strength hot stamped martensitic steels, namely 38MnB5, 15MnCr5, and 25MnVB5, in addition to the conventional “boron steel” for automotive hot stamping ...
Danks, S.   +2 more
core   +1 more source

Modeling strain rate sensitivity and high temperature deformation of Mg-3Al-1Zn alloy

open access: yesJournal of Magnesium and Alloys, 2019
Increasing the plastic deformation temperature of Mg alloys results in higher strain rate sensitivity, easier activation of secondary slip modes, and impeded twinning. In this study, the strain rate sensitivity is estimated for each deformation mode, and
Adrien Chapuis, Qing Liu
doaj   +1 more source

The Genetic Basis of Mutation Rate Variation in Yeast. [PDF]

open access: yes, 2018
Mutations are the root source of genetic variation and underlie the process of evolution. Although the rates at which mutations occur vary considerably between species, little is known about differences within species, or the genetic and molecular basis ...
Bloom, Joshua S   +2 more
core   +1 more source

Ventilatory Phenotypes among Four Strains of Adult Rats. [PDF]

open access: yes, 2002
Our purpose in this study was to identify different ventilatory phenotypes among four different strains of rats. We examined 114 rats from three in-house, inbred strains and one outbred strain: Brown Norway (BN;n = 26), Dahl salt-sensitive (n = 24), Fawn-
Dwinell, Melinda R.   +4 more
core   +2 more sources

Crack tip effective strain rates in rate sensitive materials [PDF]

open access: yesInternational Journal of Fracture, 1975
Simultaneous p a i r s of values of K ( s t r e s s i n t e n s i t y f ac to r ) and R ( f r a c t u r e toughness , or e q u i v a l e n t l y s t r a i n energy r e l e a s e r a t e G) fo r q u a s i s t a t i c a l l y running cracks in compact t ens ion t e s t p i e c e s of po lymethylmethacry la te have been determined a t var ious crack v e l
Lee, C. S. G. (C. S. George)   +2 more
openaire   +2 more sources

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