Results 21 to 30 of about 622,646 (280)

Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage

Advances in Materials Science and Engineering, 2021
Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration.
Q. Liu, W. Chen, J. K. Guo, R. F. Li, D. Ke, Y. Wu, W. Tian, X. Z. Li   +7 more
doaj   +1 more source

Loss of strength in Ni3Al at elevated temperatures [PDF]

, 2006
Stress decrease above the stress peak temperature (750 K) is studied in h123i single crystals of Ni3(Al, 3 at.% Hf ). Two thermally activated deformation mechanisms are evidenced on the basis of stress relaxation and strain rate change experiments.
Ahmadieh A, B. Viguier, Baluc N, Baluc N, Baluc N, Brown N, Caillard D, Caillard D, Hemker KJ, Heredia F, Heredia FE, J. L. Martin, Kruml T, Kruml T, Kruml T, Levine ED, Martin JL, Martin JL, Martin JL, Miura S, Molénat G, Spätig P, T. Kruml, Thornton PH, Veyssière P, Viguier B, Viguier B   +26 more
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Modeling and Verification of Stress Relaxation Behavior of Ti-6Al-4V [PDF]

MATEC Web of Conferences, 2020
The phenomenon of gradual decrease of internal stress with the deformation of material maintained under the precondition of certain temperature and initial stress or pre-strain is called stress relaxation.
Zhang Xingzhen, Deng Ying, Liang Tian, Jin Shihan, Li Weidong   +4 more
doaj   +1 more source

Shear flow effects on phase separation of entangled polymer blends [PDF]

, 1998
We introduce an entanglement model mixing rule for stress relaxation in a polymer blend to a modified Cahn-Hilliard equation of motion for concentration fluctuations in the presence of shear flow.
A. Onuki, A. Onuki, A. Onuki, C. Tsenoglu, D. W. Mead, G. Ianniruberto, J. des Cloizeaux, L. A. Hindawi, M. Doi, M. Doi, M. L. Fernandez, M. Rubinstein, M. Rubinstein, N. Clarke, R. G. Larson, R. G. Larson, S. T. Milner, T. C. B. McLeish, T. C. B. McLeish   +18 more
core   +1 more source

Experimental mechanics and numerical prediction on stress relaxation and unrecoverable damage characteristics of rubber materials

Polymer Testing, 2021
Stress relaxation and unrecoverable damage deformation are common phenomenon in rubber materials, which greatly induces instability of geometrical dimension and deteriorates the mechanical performances.
D.X. Leng, C. Huang, K. Xu, Y. Ma, G.J. Liu, Z.X. Li   +5 more
doaj   +1 more source

Long time stress relaxation of amorphous networks under uniaxial tension: The Dynamic Constrained Junction Model [PDF]

, 2008
Poly-isoprene networks with different degrees of cross-linking and filler amount are studied under uniaxial stress relaxation. Time decay of stress obeys a stretched exponential form with a stretching parameter of 0.4 that is same for all independent ...
Erman, Burak, Konyalı, Haluk, Konyali, Haluk, Menceloglu, Yusuf Z., Menceloğlu, Yusuf Z.   +4 more
core   +3 more sources

Simulation of relaxation time and storage modulus for carbon nanotubes-based nanocomposites

Journal of Materials Research and Technology, 2021
This paper develops two equations for relaxation time and storage modulus of biopolymer nanocomposites at unlike frequency ranges. The relaxation time is correlated to zero complex viscosity, yield stress, K constant and power-law index. In addition, the
Yasser Zare, Kyong Yop Rhee
doaj   +1 more source

Can verbal suggestions strengthen the effects of a relaxation intervention? [PDF]

, 2019
Short stress management interventions such as relaxation therapy have demonstrated preliminary effectiveness in reducing stress-related problems. A promising tool to strengthen the effectiveness of relaxation-based interventions is the use of verbal ...
Evers, Andrea W. M., Manai, Meriem, Meeuwis, Stefanie H., Schakel, Lemmy, Van Dessel, Pieter, van Middendorp, Henriet, Veldhuijzen, Dieuwke S.   +6 more
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Effect of Chemical Treatment on the Stress Relaxation of Wood

Chemical Engineering Transactions, 2017
In order to analyze the mechanical relaxation phenomenon of copper plated poplar veneer multilayer composite, the multilayer composite materials with different structures are taken as the experimental object, the effect of temperature, structure and ...
Liangsong Cheng, Mingbin Liu
doaj   +1 more source

Investigating How Auditory and Visual Stimuli Promote Recovery After Stress With Potential Applications for Workplace Stress and Burnout: Protocol for a Randomized Trial

Frontiers in Psychology, 2022
BackgroundWork-related stress is one of the top sources of stress amongst working adults. Relaxation rooms are one organizational strategy being used to reduce workplace stress.
Kunjoon Byun, Kunjoon Byun, Sara Aristizabal, Sara Aristizabal, Yihan Wu, Aidan F. Mullan, Jeremiah D. Carlin, Jeremiah D. Carlin, Colin P. West, Colin P. West, Kevin A. Mazurek, Kevin A. Mazurek, Kevin A. Mazurek, Kevin A. Mazurek   +13 more
doaj   +1 more source