Environmental Effects on Crack Growth in Composites

2007 ◽  
pp. 428-470 ◽  
Author(s):  
J.C. Arnold
Keyword(s):  
Crack Growth ◽  
Environmental Effects

Environmental effects in crack growth

1975 ◽  
Vol 10 (4) ◽  
pp. 251-257 ◽  
Author(s):  
R N Parkins
Keyword(s):  
Crack Growth ◽  
Environmental Effects ◽  
Slow Crack Growth ◽  
Material Structure ◽  
Bare Metal ◽  
Electrochemical Parameters

The interdependence of material structure, electrochemical parameters and the response of a material to the application of stress can produce slow crack growth by a number of different mechanisms. The recognition of the importance of such factors as environment composition, especially within the confines of a pit or crack, and of plasticity, especially in relation to the rate at which deformation presents bare metal at the tips of cracks, is vital if reproducible data are to be obtained.

scholarly journals Short/small fatigue crack growth, thresholds and environmental effects: a tale of two engineering paradigms

2021 ◽  
Vol 39 (2) ◽  
pp. 165-175
Author(s):  
Russell J. H. Wanhill ◽  
Stefanie E. Stanzl-Tschegg
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Steam Turbine ◽  
Crack Growth ◽  
Environmental Effects ◽  
High Cycle Fatigue ◽  
Materials Science ◽  
Fatigue Cracks ◽  
Cycle Fatigue ◽  
Metal Fatigue

Abstract This paper results from mutual discussions on the review ‘When do small fatigue cracks propagate and when are they arrested?’ in Corrosion Reviews, 2019; 37(5): 397–418. These discussions have arisen from the two engineering paradigms characterizing our fatigue research: (i) an aerospace research and technology remit for metallic airframes, and (ii) a materials science research programme supporting a methodology for steam turbine low pressure (LP) blade operations. In our opinion, this paper is of interest for other investigators of metal fatigue with respect to design requirements, life predictions and assessments. In more detail, the paper considers the fatigue design methodologies for airframes and steam turbine LP blades. This includes short/small fatigue cracks, fatigue crack growth thresholds, high-cycle fatigue (HCF) and very-high-cycle fatigue (VHCF), and the relevance of environmental effects (corrosion and corrosion fatigue).

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