Results 271 to 280 of about 6,126,180 (306)

Unification proposals for fatigue crack propagation laws

Multidiscipline Modeling in Materials and Structures, 2017
PurposeThe purpose of this paper is to propose the new dependences of cycles to failure for a given initial crack length upon the stress amplitude in the linear fracture approach. The anticipated unified propagation function describes the infinitesimal crack-length growths per increasing number of load cycles, supposing that the load ratio remains ...
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Random Slip Model of Fatigue and Coffin's Law

Nature, 1960
COFFIN1 has shown that for a number of metals and alloys the relation between n the number of cycles to fracture and E the plastic strain in each cycle is of the simple form :
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A Conjectured Solder Fatigue Law Based on Nonlinear Dynamics

Journal of Electronic Packaging, 1992
A discipline of nonlinear dynamics (Chaos Theory), not traditionally used in the study of solder, is applied here in developing a conjectured general form for fatigue based on creep. Solder joint data are analyzed which demonstrates two strain-rate regimes.
S. Russell, R. Caroselli, J. Mason, M. Shah   +3 more
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A scaling law for fatigue crack initiation in steels

Scripta Metallurgica et Materialia, 1995
The beneficial effect of a fine grain size on crack initiation and low-cycle fatigue (LCF) life is well known. Previous studies have shown that the cycle to failure in many alloys is increased with decreasing grain or microstructural unit size.
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Burnout, chronic fatigue, and prozac in the professions: The iron law of salaries

Review of Radical Political Economics, 2001
In this model of contested exchange, ambitious salaried yuppies (in accounting, consulting, engineering, higher education, investment banking, law, management, marketing, medicine, or other professions) inevitably toil on the verge of depression, much as wage workers once toiled on the verge of starvation.
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Relating Paris Law Fatigue Crack Growth in Composites with a Physics-Based Fatigue Model

American Society for Composites 2017, 2017
The focus of this paper is to explore potential connections between the kinetic theory of fracture (KTF), a physics-based fatigue life prediction methodology, and the traditional Paris Law approach to prediction of fatigue crack propagation in composites. In previous research, KTF has been used primarily as a predictor of fatigue initiation.
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Scaling Laws and Fractality in Fatigue Crack Growth

2015
Fatigue problem is still very much an empirical art rather than a science, despite being a relatively old subject having nearly 160 years of studying history since (Wöhler, 1860). Many problems in the area of fatigue still remain unsolved. (Cui, 2002) pointed out six important examples, such as the fatigue life prediction under variable amplitude; the
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Predictive fatigue crack growth law of high-strength steels

Journal of Materials Science and Technology, 2022
Peng Zhang
exaly  

Assessment of fatigue resistance of concrete: - curves to the Paris’ law curves

Construction and Building Materials, 2022
Héctor Cifuentes, Vlastimil Bílek, Petr Miarka   +2 more
exaly  

An improved inverse power law model for accelerated fatigue life prediction of 6061-T6 and AZ31B-F

Engineering Failure Analysis, 2022
Kaifan Du, Shengli Xu
exaly