Results 21 to 30 of about 11,349 (316)

Characterization of Surface Fatigue Crack Nucleation and Microstructurally Small Crack Growth in High Strength Aluminum Alloys

Frontiers in Materials, 2021
It is well established that fatigue crack nucleation and small crack growth in high strength aluminum alloys are highly influenced by the surrounding microstructure including grain boundaries, texture, inclusion barriers, among other factors.
Robert Fleishel, Cole Cauthen, Steven Daniewicz, Andrew Baker, J. Brian Jordon, Stephanie TerMaath   +5 more
doaj   +1 more source

The effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loading [PDF]

, 2010
In this work the evolution of the residual stresses in a MIG-welded 2024-T3 aluminium alloy M(T) specimen during in situ fatigue crack growth at constant load amplitude has been measured with neutron diffraction.
Lin, J., Liljedahl, C. D. M., Fitzpatrick M, Edwards, L., Edwards, Lyndon, Fitzpatrick, Michael E., Zanellato, O., Fitzpatrick, M. E., Edwards L, Zanellato, Oliver, Liljedahl C, Liljedahl, C. David M., Lin J, Zanellato O   +13 more
core   +1 more source

Weld residual stress effects on fatigue crack growth behaviour of aluminium alloy 2024-T351 [PDF]

, 2008
The interaction between residual stress and fatigue crack growth rate has been investigated in middle tension and compact tension specimens machined from a variable polarity plasma arc welded aluminium alloy 2024-T351 plate.
Liljedahl, CDM, Tan, M. L., Edwards, Lyndon, Irving, PE, Brouard, J, Liljedahl, C.D.M., Zanellato, O., Fitzpatrick, M. E., Zhang, Xiang, Fitzpatrick, M.E., Brouard, J., Ganguly, S, Liljedahl, C. David M., Ganguly, S., Zanellato, O, Irving, P.E., Lin, J., Tan, ML, Liljedahl, C. D. M., Edwards, L., Fitzpatrick, Michael E., Zhang, X.; id_orcid, Ganguly, Supriyo, Zhang, X., Zhang, X, Edwards, L, Zanellato, Oliver, Lin, J, Irving, P. E., Irving, Phil E., Tan, M.L., Fitzpatrick, ME   +31 more
core   +1 more source

An inverse method for evaluating weld residual stresses via fatigue crack growth test data [PDF]

, 2010
This paper presents an inverse method for calculating the thermal residual stresses in welded specimens via measured fatigue crack growth rates. Firstly, fracture-mechanics superposition law has been used to extract the stress intensity factor due to ...
Rui Bao, Xiang Zhang, Bao, Rui, Zhang, Xiang   +3 more
core   +1 more source

Fatigue and Crack Growth under Constant- and Variable-Amplitude Loading in 9310 Steel Using “Rainflow-on-the-Fly” Methodology

Metals, 2021
Fatigue of materials, like alloys, is basically fatigue-crack growth in small cracks nucleating and growing from micro-structural features, such as inclusions and voids, or at micro-machining marks, and large cracks growing to failure.
James C. Newman
doaj   +1 more source

Evaluation of the intrinsic crack growth rates of weld joints [PDF]

, 2011
A method is presented for evaluating weld intrinsic fatigue crack growth rate (FCGR) by excluding the influence of residual stresses. The method is potentially useful for predicting crack growth lives of structural components using measured FCGR data ...
Xiang Zhang, Rui Bao, Bao, Rui, Zhang, Xiang   +3 more
core   +1 more source

Micromechanisms of short fatigue crack growth in an Al-Si piston alloy [PDF]

, 2014
The short fatigue crack growth behaviour of a model cast aluminium piston alloy has been investigated. This has been achieved using a combination of fatigue crack replication methods at various intervals during fatigue testing and post-mortem analysis of
T.O. Mbuya, P.A.S. Reed, Reed, P.A.S., Mbuya, Thomas O.   +3 more
core   +1 more source

Predicting fatigue crack growth rate in a welded butt joint: The role of effective R ratio in accounting for residual stress effect [PDF]

, 2009
A simple and efficient method is presented in this paper for predicting fatigue crack growth rate in welded butt joints. Three well-known empirical crack growth laws are employed using the material constants that were obtained from the base material ...
Servetti, Guido, Zhang, X.
core   +1 more source

STUDY ON INFLUENCE OF LOW TEMPERATURE ENVIRONMENT ON FATIGUE CRACK GROWTH PERFORMANCE OF HIGH-SPEED RAILWAY BRAKE DISC MATEREIAL

Jixie qiangdu, 2022
In order to study the effect of low temperature environment on the fatigue crack growth performance of high-speed train brake disc materials, the tensile and fatigue crack growth rate tests of special cast steel materials of high-speed railway brake disc
DING SiYuan, MA Lei, SHI HanBo, PAN JunLin, YUAN HaiBing   +4 more
doaj  

Fatigue Crack Growth Rate Analysis in a Titanium Alloy

Key Engineering Materials, 2008
Reliable prediction of fatigue crack growth rates in aerospace materials and components underpins the so-called defect-tolerant approach to lifing. In this methodology the presence or appearance of defects and cracks in components is accepted. However, safe operation is guaranteed by regular inspections and health monitoring, and ensuring (by means of ...
Alexander M. Korsunsky, Daniele Dini, Michael J. Walsh   +2 more
openaire   +2 more sources