Open Access
Fatigue crack growth threshold concepts
D.L. Davidson,Subra Suresh +1 more
Reads0
Chats0
TLDR
In this paper, a Symposium was organized specifically to concentrate on the concepts underlying the fatigue crack growth threshold, including the roles of composition, microstructure, environment, temperature, crack closure, crack size, and variable amplitude loading.Abstract:
This symposium was organized specifically to concentrate on the concepts underlying the fatigue crack growth threshold. Research has led to an improved understanding of the many mechanisms influencing the near-threshold behavior of fatigue crack growth in engineering materials. These proceedings deal with many aspects of near-threshold fatigue crack growth including the roles of composition, microstructure, environment, temperature, crack closure, crack size, and variable amplitude loading. The current level of knowledge of fatigue thresholds is accurately reflected by the contents of the manuscripts.read more
Citations
More filters
Journal ArticleDOI
Cumulative fatigue damage and life prediction theories: a survey of the state of the art for homogeneous materials
Ali Fatemi,Linsheng Yang +1 more
TL;DR: A comprehensive review of cumulative fatigue damage theories for metals and their alloys, emphasizing the approaches developed between the early 1970s to the early 1990s, can be found in this paper, where the authors grouped these theories into six categories: linear damage rules, nonlinear damage curve and two-stage linearization approaches; life curve modification methods; approaches based on crack growth concepts; continuum damage mechanics models; and energy-based theories.
Journal ArticleDOI
Mechanisms of fatigue crack propagation in metals, ceramics and composites: Role of crack tip shielding☆
TL;DR: In this paper, the authors examined the effect of crack tip shielding on fatigue crack propagation behavior in metals, composites and ceramics, and showed that, whereas crack-tip shielding can provide a potent means of enhancing resistance to crack growth, such extrinsic toughening mechanisms can result in the apparently anomalous behavior of small cracks and to the susceptibility of brittle materials to fatigue failure.
Journal ArticleDOI
Influence of grain size on the mechanical behaviour of some high strength materials
Alain Lasalmonie,J. L. Strudel +1 more
TL;DR: In this article, the influence of grain size in complex alloys by incorporating the Hall-Petch stress as one component of the internal stress helps in rationalizing the existence of an optimal grain size where creep resistance is maximized.
Journal ArticleDOI
Grain size effects on the fatigue response of nanocrystalline metals
TL;DR: In this article, the fatigue response of electrodeposited nanocrystalline pure Ni and a cryomilled ultra-fine-crystalline Al-Mg alloy was studied.
Journal ArticleDOI
Fatigue crack deflection and fracture surface contact: Micromechanical models
TL;DR: In this paper, a simple linear elastic analysis of tilted cracks is proposed to estimate the variation of cyclic crack propagation rates under the combined influence of crack kinking and fracture surface contact.