Results 1 to 10 of about 181,033 (264)

Experimental study on complex stress effect for stress relaxation aging behavior of Al-Cu-Li alloy

Journal of Materials Research and Technology, 2022
The highlight of this work is to investigate the effect of complex initial stress levels (from elastic to plastic regions) on the Stress relaxation aging (SRA) behavior of T34-2195 Al-Cu-Li alloys. The uniaxial tensile SRA experiment with various initial
Hailong Liao, Lihua Zhan, Feng Xia, Minghui Huang, Chunhui Liu, Shengmeng Hui, Peng Wang, Ruisheng Yang, Xiaobo Wang   +8 more
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Effect of Virtual Reality on Stress Reduction and Change of Physiological Parameters Including Heart Rate Variability in People With High Stress: An Open Randomized Crossover Trial

Frontiers in Psychiatry, 2021
Introduction: Although, attempts to apply virtual reality (VR) in mental healthcare are rapidly increasing, it is still unclear whether VR relaxation can reduce stress more than conventional biofeedback.Methods: Participants consisted of 83 healthy adult
Hyewon Kim, Dong Jun Kim, Dong Jun Kim, Seonwoo Kim, Won Ho Chung, Kyung-Ah Park, James D. K. Kim, Dowan Kim, Min Ji Kim, Kiwon Kim, Hong Jin Jeon, Hong Jin Jeon   +11 more
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Aging process and strengthening mechanism of Cu–Cr–Ni alloy with superior stress relaxation resistance

Journal of Materials Research and Technology, 2022
With the development trend of connectors to high-current and high-temperature service, copper alloy connectors are required to have superior stress relaxation resistance.
Guojie Wang, Haitao Liu, Kexing Song, Yanjun Zhou, Chu Cheng, Huiwen Guo, Yingang Guo, Jing Tian   +7 more
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Loading History Effect on Stress Relaxation of Rock Joints

Advances in Civil Engineering, 2021
In this study, a data analysis method for the relaxation test was proposed under step loading by conducting creep and stress relaxation tests of dentate discontinuity poured by cement mortar using biaxial creep machine under step loading and single-stage
Guanghui Tian, Weijian Liu, Haohao Ma, Qingzhao Zhang   +3 more
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Stress Relaxation Behavior and Springback Equation of 7050 Aluminum Alloys During Age-forming Process

Cailiao gongcheng, 2016
The stress relaxation behavior and springback equation of 7050 aluminum alloys during the age-forming process were studied through self-designed uniaxial tension device.
REN Wei-wei, ZOU Lin-chi, ZHANG Xing-feng, FU Dian-bao, CHEN Jun-feng   +4 more
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Experimental and numerical research of stress relaxation behavior of magnetorheological elastomer

Polymer Testing, 2021
The paper presents experimental research and viscoelastic modeling of stress relaxation response of isotropic magnetorheological elastomer (MRE). The isotropic MRE has been prepared based on silicone matrix filled by magnetically micro-sized carbonyl ...
Tran Huu Nam, Iva Petríková, Bohdana Marvalová   +2 more
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Acute relaxation during pregnancy leads to a reduction in maternal electrodermal activity and self-reported stress levels

BMC Pregnancy and Childbirth, 2021
Background Prenatal maternal stress can have adverse effects on birth outcomes and fetal development. Relaxation techniques have been examined as potential countermeasures.
Ilena Bauer, Julia Hartkopf, Anna-Karin Wikström, Nora K. Schaal, Hubert Preissl, Birgit Derntl, Franziska Schleger   +6 more
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Stress Relaxation Behavior and Its Prediction of CrMoWV Steel

Cailiao gongcheng, 2017
The stress relaxation data up to 8760h at 550℃ and 600℃of 12Cr-1Mo-1W-0.25V heat-resistant steel were used as the object to study the method of how to accurately and effectively predict long-term relaxation stress by using short-time relaxation data ...
CAO Tie-shan, CHENG Cong-qian, ZHU Yue-mei, ZHANG Hong-wei, LIU Song-feng, ZHAO Jie   +5 more
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Stress relaxation analysis of single chondrocytes using porohyperelastic model based on AFM experiments

Theoretical and Applied Mechanics Letters, 2014
Based on atomic force microscopytechnique, we found that the chondrocytes exhibits stress relaxation behavior. We explored the mechanism of this stress relaxation behavior and concluded that the intracellular fluid exuding out from the cells during ...
Trung Dung Nguyen, Adekunle Oloyede, Yuantong Gu   +2 more
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热采井口装置螺栓的蠕变及应力松弛规律研究

Jixie qiangdu, 2021
The stress relaxation phenomenon of bolt used in thermal recovery wellhead is studied experimentally under field conditions.The normal and high temperature tensile test,creep test and stress relaxation test are carried out respectively.The comparison of ...
王亭沂, 曹旭祥, 李风, 孙爽
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