Topic
Paris' law
About: Paris' law is a research topic. Over the lifetime, 13815 publications have been published within this topic receiving 224818 citations. The topic is also known as: Paris-Erdogan law.
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TL;DR: In this article, a short crack growth model is presented for calculating fatigue lives to technical crack initiation in materials and structures under non-proportional multiaxial loading, which is based on an integration of the crack growth equation expressed in terms of the effective range of the cyclic J-integral.
74 citations
TL;DR: In this paper, the effect of residual stresses on fatigue crack growth is investigated by paying attention to a fatigue crack that initiates at the weld metal and propagates perpendicular to the weld line, and the experimental results indicate that the crack growth rates are equivalent by use of the effective stress intensity range, based on the measurements of crack opening ratio.
74 citations
74 citations
TL;DR: In this paper, an analytic model for fatigue crack life prediction in fiber reinforced concrete (FRC) is presented, which elucidates fatigue crack growth in cementitious matrix material under the influence of external cyclic load and fiber and aggregate bridging.
Abstract: This paper presents an analytic model for fatigue crack life prediction in fiber reinforced concrete (FRC). The model elucidates fatigue crack growth in cementitious matrix material under the influence of external cyclic load and fiber and aggregate bridging. It is shown that fiber-matrix interface damage must be accounted for in order to properly simulate the three experimentally observed stages of matrix crack growth, involving a decelerated stage, a steady state stage, and an accelerated stage towards final fracture failure. This model, which explicitly accounts for the positive role of fibers on fatigue life, predicts the existence of the well-known fatigue limit load in standard S-N curve tests of FRCs. The basic framework of this analysis can be used to address fatigue life of FRC structures subjected to high cycle fatigue loading, as well as providing a basis for material design of fatigue resistant FRC at the microstructure level.
74 citations
TL;DR: In this paper, the microstructure of lath martensite in 0.1C-1.7Mn (wt.%) steel and its effect on mechanical properties and fracture behavior was analyzed.
73 citations