Results 61 to 70 of about 19,892 (363)

A damage-based method to predict crack initiation lifetime of high-strength steel under proportional bending-torsional loadings

Advances in Mechanical Engineering, 2022
The fatigue life of specimen consists of crack initiation and crack propagation life. As the fracture toughness of high strength steel is low, the specimen will fail soon once crack appears.
Ganggang Gao, Jianhui Liu, Xuebin Lu, Rong Zhang   +3 more
doaj   +1 more source

Prediction of fretting crack propagation based on a short crack methodology [PDF]

, 2008
Fretting tests have been conducted to determine the maximum crack extension under partial slip conditions, as a function of the applied tangential force amplitude.
Hills, David, Kubiak, K, Nowell, D., Nowell, David, Hills, DA, Fouvry, S, Kubiak, Krzysztof, Kubiak, K., Hills, D.A., Fouvry, S., Nowell, D   +10 more
core   +1 more source

Effect of Microstructure on the High-Cycle Fatigue Behavior of Ti(43-44)Al4Nb1Mo (TNM) Alloys

Metals, 2019
To investigate the high-cycle fatigue (HCF) behavior of TNM alloys, three different microstructures were designed and obtained by different heat treatments.
Bin Tang, Bin Zhu, Weiqing Bi, Yan Liu, Jinshan Li   +4 more
doaj   +1 more source

Effects of graphite nodules on crack growth behaviour of austempered ductile iron [PDF]

, 2007
Austempered ductile iron (ADI) is a candidate material for camshafts, where however, the early stages of fatigue damage are of major concern during service.
Reed, P.A.S., Gao, N., Stokes, B.
core   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

Arthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni, Chloe Shields, Rohit Muralidhar, Shreya Bhatt, Alan Baer, Robert Fox, Sara S. McCoy, Anat Galor   +7 more
wiley   +1 more source

Influence of Residual Stresses on the Crack Initiation and Short Crack Propagation in a Martensitic Spring Steel

Metals, 2022
The crack initiation and short crack propagation in a martensitic spring steel were investigated by means of in-situ fatigue testing. Shot peened samples as well as untreated samples were exposed to uniaxial alternating stress to analyze the impact of ...
Anna Wildeis, Hans-Jürgen Christ, Robert Brandt   +2 more
doaj   +1 more source

Fatigue crack shielding in plain bearings under large scale yielding

, 2010
Multi-layered bearing systems used in the automotive industry show shielding and antishielding effects that reduce or amplify the crack driving force under large-scale yielding conditions. Using finite element analysis, it is shown that shielding in such
S. Syngellakis, P.A.S. Reed, Burke-Veliz, A., Reed, P.A.S., Syngellakis, S., A. Burke-Veliz   +5 more
core   +1 more source

A numerical study of crack shielding and deflection under extensive plasticity [PDF]

, 2009
Experimentally observed crack deflection events in multi-layered material systems, occurring even under pure mode-I loading, are here simulated and explained through elasto-plastic finite element modelling.
Reed, Philippa A.S., Syngellakis, Stavros, Burke-Veliz, Allan   +2 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Crystal plasticity analysis of fatigue crack initiation site considering crystallographic orientation in Ti–22V–4Al alloy

Results in Engineering
In this study, plane bending fatigue tests were conducted on Ti–22V–4Al alloy, a β-type titanium alloy, to examine the fatigue crack initiation behavior in detail.
Jinta Arakawa, Koki Hirazumi, Takeshi Uemori, Yoshito Takemoto   +3 more
doaj   +1 more source