Results 51 to 60 of about 134,487 (311)

Cumulative Damage in Very High/Low Cycle Combined Fatigue for TC21 Titanium Alloy

Crystals, 2022
The effect of low cycle fatigue (LCF) predamage with no precracks on very high cycle fatigue (VHCF) properties, and crack initiation characteristics for TC21 titanium alloy, was investigated.
Baohua Nie, Shuai Liu, Yue Wu, Yu Song, Haiying Qi, Binqing Shi, Zihua Zhao, Dongchu Chen   +7 more
doaj   +1 more source

Study on high-low cycle fretting fatigue life of Inconel718 tenon structure

Hangkong gongcheng jinzhan
The turbine blades of aero-engines are subjected to cyclic high-low cycle loads in actual service environments，which is a typical high-low cycle micro motion fatigue condition. The frequent occurrence of fatigue fracture in turbine blades due to fretting
YANG Xiaolin, MU Qinqin, CHEN Yonghui, YAN Qun   +3 more
doaj   +1 more source

Micro-Deformation and Fracture Features of Ti834 Titanium Alloy under Fatigue Loading

Metals, 2023
A sustained load holding period imposed during fatigue loading is detrimental to material performances, causing a sharp decline in the fatigue life of near-α titanium alloys.
Ning Wang, Weiju Jia, Xiaonan Mao, Wei Zhou, Chengliang Mao   +4 more
doaj   +1 more source

Multi-timescale analysis of fatigue crack growth on interfaces via cohesive-zone models [PDF]

, 2014
The paper describes a new non-linear finite-element formulation to analyse fatigue debonding or delamination, along predefined interfaces, which is multi-scale in time. At the small timescale level, cyclic loading and the related oscillating response are
Giulio Alfano, Alfano, G
core   +1 more source

Evaluating a Pragmatic Strength Alternative for Frailty Measurement and Assessing Its Predictive Capacity Against Established Frailty Instruments in Rheumatoid Arthritis

Arthritis Care &Research, EarlyView.
Objective Frailty occurs prematurely in rheumatoid arthritis (RA) and is associated with poor health outcomes. We compared the performance of four frailty instruments, including a pragmatic alternative measure using chair sit‐to‐stand (STS), and evaluated their abilities to predict poor health outcomes.
Kylie E. Riggles, Hannah F. Brubeck, Adrienne D. Tanus, Courtney N. Loecker, Punyasha Roul, Bryant R. England, Elizabeth R. Wahl, James S. Andrews, Namrata Singh, Joshua F. Baker, Patricia P. Katz, Dolores M. Shoback, Jose M. Garcia, Ariela R. Orkaby, Katherine D. Wysham   +14 more
wiley   +1 more source

Associations of Rheumatoid Arthritis Disease Activity With Frailty Over Five Years of Follow‐up

Arthritis Care &Research, EarlyView.
Objective To evaluate whether rheumatoid arthritis (RA) disease activity is associated with frailty both in cross‐section and longitudinally. Methods Participants within the Veterans Affairs Rheumatoid Arthritis (VARA) registry enrolled from 2003 to 2022 were included.
Courtney N. Loecker, Yangyuna Yang, Punyasha Roul, Aaron Baraff, Myra S. Schmaderer, Lani Zimmerman, Kaleb Michaud, Namrata Singh, Grant W. Cannon, Gary Kunkel, Ted R. Mikuls, Ariela R. Orkaby, Joshua F. Baker, Bryant R. England, Katherine D. Wysham   +14 more
wiley   +1 more source

Modified low-cycle fatigue (LCF) test

Metalurgija, 2015
The fatigue test results obtained by the common low-cycle fatigue test (LCF) and its modified MLCF counterpart were presented. A satisfactory agreement of results was achieved for the two selected materials. With the MLCF method it is possible to examine
M. Maj, A. Klasik, K. Pietrzak, D. Rudnik   +3 more
doaj  

Low-cycle fatigue behavior and microstructure evolution of ODS steel pipes at high temperatures

Journal of Materials Research and Technology
Oxide-dispersion-strengthened (ODS) steels are candidate materials for application in advanced nuclear reactors. In this study, the low-cycle fatigue performances of 13Cr-ODS ferritic steel pipes were investigated at 600, 700, and 800 °C.
Yuntao Zhong, Yongduo Sun, Yufeng Du, Zhenyu Zhao, Yong Chen, Huan Sheng Lai, Ruiqian Zhang   +6 more
doaj   +1 more source

Effect of low cycle fatigue on steel moment frames with prequalified rigid connections (bolted unstiffened and stiffened extended end-plate moment connections) [PDF]

Journal of Structural and Construction Engineering, 2019
The moment beam-to-column connections include those connections that can transfer the moment between the beam and the column. Bolted unstiffened and stiffened extended end-plate moment connections are from this category.
Mohsen Gerami, Amirhosein Zarei, Mohsen Ghaderi   +2 more
doaj   +1 more source

Impact of hydrogen on the high cycle fatigue behaviour of Inconel 718 in asymmetric push–pull mode at room temperature

, 2015
The influence of hydrogen on the high cycle fatigue (HCF) behaviour of Inconel 718 has been studied at room temperature in asymmetric push–pull mode using an ultrasonic HCF test rig. Fatigue tests have been carried out in gaseous hydrogen (GH2) and in Ar
Fischer, B., Gonzalez Sanchez, Sergio, Ruiz, A., Bruchhausen, M., Hähner, P., Fischer, Burkhard, Soller, S., Bruchhausen, Matthias, Hähner, Peter, González, S., Soller, Sebastian   +10 more
core   +1 more source