Results 31 to 40 of about 622,646 (280)

Orthotropic cyclic stress-softening model for pure shear during repeated loading and unloading [PDF]

open access: yes, 2014
We derive an orthotropic model to describe the cyclic stress softening of a carbon-filled rubber vulcanizate through multiple stress-strain cycles with increasing values of the maximum strain. We specialize the deformation to pure shear loading.
Rickaby, Stephen R., Scott, Nigel H.
core   +1 more source

Comparison of the effect of relaxation and biofeedback-assisted relaxation on stress and anxiety score in patients with mild hypertension [PDF]

open access: yesفصلنامه دانشگاه علوم پزشکی جهرم, 2011
Introduction:Anxiety and stress are known to increase blood pressure. Psychological methods and behavioral therapy are appropriate and low-cost methods in hypertensive patients.
Jamshid Najafian, Afshan Akhavan Tabib
doaj  

After stress comes relax(ation)

open access: yesNew Journal of Physics, 2015
Viscoelastic materials take a finite time to relax and dissipate stress and this time scale is directly connected to the microstructure of the material itself. In their paper, Gomez-Solano and Bechinger (2015 New J. Phys.
Lucio Isa
doaj   +1 more source

Study on stress relaxation characteristics of FGH95 powder superalloy treated by laser shock peening

open access: yesMaterials Research Express, 2022
Aiming at the phenomenon that the residual stress induced by Laser Shock Peening (LSP) will relax and redistribute under various loads, temperature, cyclic load, and the dual treatment of temperature and cyclic load on the residual stress relaxation of ...
Haiyan Zhu   +7 more
doaj   +1 more source

Non-Newtonian Rheology of Igneous Melts at High Stresses and Strain Rates: Experimental Results for Rhyolite, Andesite, Basalt, and Nephelinite [PDF]

open access: yes, 1990
The stress-strain rate relationships of four silicate melt compositions (high-silica rhyolite, andesite, tholeiitic basalt, and nephelinite) have been studied using the fiber elongation method.
Dingwell, Donald B., Webb, Sharon L.
core   +1 more source

Stress Relaxation Properties and Microscopic Deformation Structure in Bending of the C7025 and C7035 Alloy

open access: yesCrystals, 2018
Stress relaxation tests in cantilever bending were performed on the C7025 and C7035 alloys at 298 K and 393 K, respectively. The effect of stress-relief treatments on stress relaxation properties was investigated.
Xiangpeng Xiao   +4 more
doaj   +1 more source

Residual Stress Relaxation of Thin-walled Long Stringer Made of Aluminum Alloy 7050-T7451 under Transportation Vibration

open access: yesChinese Journal of Mechanical Engineering, 2020
Thin-walled long stringer made of aluminum alloy 7050-T7451 is prone to deformation during transportation, so a research of residual stress relaxation was launched in this paper.
Yinfei Yang   +4 more
doaj   +1 more source

Slow dynamics and stress relaxation in a liquid as an elastic medium

open access: yes, 2007
We propose a new framework to discuss the transition from exponential relaxation in a liquid to the regime of slow dynamics. For the purposes of stress relaxation, we show that a liquid can be treated as an elastic medium.
E. Orowan   +4 more
core   +1 more source

Study of the stress relaxation resistance and microstructural evolution of a Cu–Ni–Si alloy strip

open access: yesJournal of Materials Research and Technology
The stress relaxation resistance of a Cu–Ni–Si alloy strip after 48 h of initial loading stress of 80% σ0.2 at 125 °C was studied. The stress relaxation curve was fitted using a model. By employing EBSD, TEM, and other techniques, this study examined the
Yanmin Zhang   +6 more
doaj   +1 more source

Effect of salt stress on electrical impedance spectroscopy parameters of wheat (Triticum aestivum L.) leaves

open access: yes浙江大学学报. 农业与生命科学版, 2009
To find out the traits of electrical parameter in cell membrane of wheat leaves under salt stress, electrical impedance spectroscopy (EIS) was applied to follow the reaction of impedance parameters at different NaCl concentrations. Four EIS parameters of
LIU Xiao-hong   +3 more
doaj   +1 more source

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