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Objective comparison of the Unified Curve and Master Curve methods
International Journal of Pressure Vessels and Piping, 2014The Unified Curve and the Master Curve are two popular cleavage fracture toughness assessment engineering methods. The methods are very similar. They basically differ only in the assumed fracture toughness temperature dependence. The standard Master Curve approximates the temperature dependence as being fixed, whereas the Unified Curve assumes that the
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An Introduction to the Development and Use of the Master Curve Method
2005Description This new ASTM manual introduces the concept of the Master Curve Method so it can be understood and used by engineers who have had limited exposure to elastic-plastic fracture mechanics and/or advanced statistical methods.
McCabe, Donald E. +2 more
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Master John Perks and his Mechanical Curves
Centaurus, 1963The elusive minor English mathematician John Perks (floruit c. 1700), master of a `hospital' (charity apprentice-school) in Worcestershire and friend of De Moivre and John Colson, is now remembered -- if at all -- for an ingenious elementary quadrature of a circle-lunule [Philos. Trans.
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Calibration of Beremin model with the Master Curve
Engineering Fracture Mechanics, 2015Abstract The calibration of local approaches to cleavage fracture is important topic in structural integrity analysis. In this paper, a method to calibrate the Beremin model based on the Master Curve is studied. The temperature dependence of Beremin model parameters is investigated in the ductile-to-brittle (DBT) transition region.
Qian, Guian +2 more
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Towards a universal master curve in magnetorheology
Smart Materials and Structures, 2017Abstract We demonstrate that inverse ferrofluids behave as model magnetorheological fluids. A universal master curve is proposed, using a reduced Mason number, under the frame of a structural viscosity model where the magnetic field strength dependence is solely contained in the Mason number and the particle concentration is solely ...
José Antonio Ruiz-López +2 more
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Development of a master sintering curve for ThO2
Journal of Nuclear Materials, 2004Abstract A master sintering curve for ThO 2 containing 0.5 wt% CaO has been constructed with the help of combined-stage sintering model. The concept of the master sintering curve (MSC) has been used to calculate the activation energy for sintering for the above composition, and a value of 520 kJ/mol was obtained.
T.R.G Kutty +6 more
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Master curve for viscous crack healing
Materials Letters, 2018A novel method to generalize kinetic data of viscous crack healing in glasses is proposed. The method assumes that crack healing progress is proportional to the healing time, t, and indirect proportional to viscosity, n. This way, crack length and crack width data, normalized to the initial crack length and plotted versus t/n, allow to compare crack ...
C. Blaeß, R. Müller
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Master Curve for the Discrete-Element Method
Industrial & Engineering Chemistry Research, 2007The discrete-element method (DEM) is a numerical model consisting of the fundamental laws of motion and a suitable force-displacement model, such as the linear spring-and-dashpot model, as closure. The damping coefficient found in the latter is related to the phenomenological concept of coefficient of restitution of solid particles.
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A master curve for tensile properties of thermoplastics
Macromolecular Chemistry and Physics, 1994AbstractUltimate mechanical properties of polymers can be characterized by a dimensionless Hooke number He ≡ σb/(Eϵb), where σb is the ultimate tensile strength, E the tensile modulus, and ϵb the elongation at break. Hooke numbers are found to be a smooth function of ultimate elongations, independent of the chemical and physical structure of common ...
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Master curves for some amorphous polymers
Journal of Applied Polymer Science, 1964AbstractMaster curves for polystyrene, poly(methyl acrylate), and poly(methyl methacrylate) in stress relaxation are reported. The method used to obtain a wide range in modulus is to combine torsional creep data for high modulus regions with direct stress relaxation data for low moduli.
M. Takahashi +3 more
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