Sentence examples for behavior at different R-ratios from inspiring English sources
The fatigue fracture behavior at different R-ratios was investigated and correlated with the fatigue response of the composite.
The magnitude of crack closure is used to interpret observed crack growth behaviour at different R-ratios.
Corrosion fatigue crack growth (CFCG) experiments of AISI 4340 high strength steel were conducted using pre-cracked compact tension specimens in dry air, distilled water, and 3.5% NaCl aqueous solution at different R-ratios (where R is the ratio of the minimum load over the maximum load in a loading cycle) and different loading frequencies.
The crack propagation behavior was analyzed using a modified linear elastic fracture mechanics parameter, M. The relation crack propagation rate vs. M parameter was found to be useful in predicting fatigue lives at different R ratios.
Stress-controlled fatigue tests were run at different R ratios (= σmin/σmax) up to at most 3 million cycles on a 2.5%Cr 1%Mo steel (ASTM A182 F22) used in riser tubes connectors for offshore oil drilling.
Constant amplitude tests were conducted at two different R-ratios (R = σmin/σmax) and the block amplitude tests involved two or more stress levels.
Measurements of crack closure using this method are presented at a number of different R-ratios, showing the crack peeling open and closed.
For this purpose, two kinds of cyclic R-ratio loading tests are performed; one is under alternation of equal-life waveforms of different R-ratios, and the other is under alternation of unequal-life waveforms of different R-ratios.
The result implies that crack growth rates for fatigue life calculation under different R-ratios may be obtained directly from the constants corresponding to R = 0.
The fatigue crack propagation (FCP) behavior of β-annealed Ti-6Al-4V (Ti64) alloy was examined in air and 0.6 M NaCl solution under anodic and cathodic applied potentials and at two different R ratios of 0.1 and 0.7.
Stress-controlled fatigue tests were performed at room temperature with different R ratios, in air and vacuum.
