نتایج جستجو برای: optimized ctod formula
تعداد نتایج: 183871 فیلتر نتایج به سال:
The work described here has led to a simple criterion that defines the boundary of small-scale yielding, SSY, regime avoid invalid use LEFM parameter, ?K, as characterising parameter for fatigue crack growth rate. approach proposed is based on analysis tip opening displacement, CTOD, and its separation into elastic plastic components. SSY conditions are shown dominate when component CTOD >75% t...
Two new algorithms for use in the analysis of [Formula: see text] collision are developed to identify the flavour of [Formula: see text] mesons at production using pions and protons from the hadronization process. The algorithms are optimized and calibrated on data, using [Formula: see text] decays from [Formula: see text] collision data collected by LHCb at centre-of-mass energies of 7 and 8 T...
Formula One motor racing is a rich sport that spends millions on research and development of highly optimized cars. Here we describe the use of a genetic algorithm to optimize 66 setup parameters for a simulation of a Formula One car and demonstrate performance improvements (faster lap times) better than all other methods tested.
saturated fat consumption increases the risk of both coronary and cancer diseases. therefore, fat reduction in uf-feta cheese (≈ 45% fdm) is favorable but, unfortunately, it has some negative effects on the texture and sensory characteristics of the cheese. in this research, response surface methodology was employed to study the probably improving effects of wpc80 (0-20 gr kg-1), lecithin (0-2 ...
The [Formula: see text] and [Formula: see text]-approximation schemes are introduced to approximate the popular generalized Cornu spirals with the help of the parametric rational cubic trigonometric Bézier curves. The [Formula: see text]-approximation scheme has two free parameters whereas [Formula: see text]-approximation scheme has four free parameters. To approximate the generalized Cornu sp...
A plasticity-induced crack-closure model was used to study fatigue crack growth and closure in thin 2024-T3 aluminum alloy under constant-R and constant-Kmax threshold testing procedures. Two methods of calculating crack-opening stresses were compared. One method was based on contact-K analyses and the other on contact crack-openingdisplacement (COD) analyses. These methods gave nearly identica...
A novel method for preparing and testing bending specimens in-situ the TEM has been developed. This method provides high visibility of the crack front and its associated plastic zone. This is significant because energy release rates can now be calculated at many points throughout the test based on crack tip opening displacement (CTOD), crack opening angle (COA), and crack advance. Further refin...
In the present investigation, wire arc additive manufacturing of Inconel 625 was carried out with cold metal transfer variant inert gas process. The heat input varied between 0.46 and 0.63 kJ/mm, which is a rather low deposition rate. built walls were subjected to Charpy V crack tip opening displacement (CTOD) fracture toughness testing, in addition microstructure examination light microscope s...
As an emerging type of spatio-temporal big data based on positioning technology and navigation devices, vehicle-based crowdsourcing has become a valuable trajectory resource. However, been collected by non-professionals with multiple measurement terminals, resulting in certain errors collection. In these cases, to minimize the impact outliers obtain relatively accurate data, it is crucial detec...
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