Results 71 to 80 of about 1,427,164 (255)

Combined Cycle Fatigue Investigation Based on Energy Principle

MATEC Web of Conferences, 2016
We present a modified energy-principle based model of fatigue damage accumulation in high temperature alloys usually used in gas turbine engine under combined high cycle fatigue and low cycle fatigue (LCF/HCF) loading conditions.
Kalynenko Mykyta
doaj   +1 more source

Acoustic emission and stage of high-cycle fatigue

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2005
From the material echo point of view, talking about high-cycle fatigue, when nondestructive tests of acoustic emissions has been made. Five stages of steel fatigue have been approved and divided agreeably with the shape of individual records.
Michal Černý, Pavel Mazal, Josef Filípek, Lucie Zyková   +3 more
doaj   +1 more source

Fatigue life of high strength steel for cold forming

Metalurgija, 2017
The article presents the results of fatigue tests carried out on STRENX-type high-strength cold forming steel. For high-cycle fatigue tests carried out using low cycle loading frequencies of around 30 Hz, a ROTOFLEX machine was used. For ultra high-cycle
R. Ulewicz, F. Novy
doaj  

Cumulative fatigue damage behavior of MAR M-247 [PDF]

The objective was to examine the room temperature fatigue and nonlinear cumulative fatigue damage behavior of the cast nickel-based superalloy, MAR M-247. The fatigue test matrix consisted of single-level, fully reversed fatigue experiments.
Halford, Gary R., Kalluri, Sreeramesh, Mcgaw, Michael A.   +2 more
core   +1 more source

TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS

Jixie qiangdu, 2016
The plastic zone in crack tip influences life prediction result when using crack propagation method to predict fatigue life of spot welds. Most of the methods used to predict fatigue life don’t take plasticity into consideration.
ZHANG Yu, LI DaYong, TANG WeiQin
doaj  

Effect of welding defects on fatigue behavior of Ni-base superalloy GH4065A

Journal of Aeronautical Materials
The spot-welding defects of highly alloyed Ni-base superalloy GH4065A were investigated by using SEM and EBSD analysis methods. Effects of the welding defects on fatigue life and fracture behavior were studied by comparing thin plate samples with a ...
LI Linhan, ZHANG Ji, TIAN Chenggang, YANG Shanjie, SHEN Zhongmin, ZHANG Wenyun, ZHANG Beijiang   +6 more
doaj   +1 more source

A comparison of high cycle fatigue methodologies [PDF]

To evaluate alternate turbopump development (ATD) high cycle fatigue (HCF) methodology, a comparison was made with the space shuttle main engine (SSME) methodology.
Herda, D. A.
core   +1 more source

Characterising the impact of surface integrity on the fatigue behaviour of a shot-peened connecting rod [PDF]

, 2014
The present study focuses on analysing and modelling the influence on fatigue behaviour of the surface of a hot-forged C70 connecting rod which undergoes a shot-blasting treatment.
GERIN, Benjamin, MOREL, Franck, PESSARD, Etienne, VERDU, Catherine   +3 more
core   +2 more sources

Fatigue life time modelling of Cu and Au fine wires

MATEC Web of Conferences, 2018
In this study, the influence of microstructure on the cyclic behaviour and lifetime of Cu and Au wires with diameters of 25μm in the low and high cycle fatigue regimes was investigated.
Khatibi Golta, Mazloum-Nejadari Ali, Lederer Martin, Delshadmanesh Mitra, Czerny Bernhard   +4 more
doaj   +1 more source

NIMS fatigue data sheet on low- and high-cycle fatigue properties of boron steel

Science and Technology of Advanced Materials: Methods
The new fatigue data sheet, No. 134, discloses the low- and high-cycle fatigue properties of boron steel. The low-cycle fatigue tests under strain-controlled conditions used incremental step tests to show cyclic stress-strain curves and constant-strain ...
Yoshiyuki Furuya, Hideaki Nishikawa, Hisashi Hirukawa   +2 more
doaj   +1 more source