Search results
Results From The WOW.Com Content Network
For the simple shear case, it is just a gradient of velocity in a flowing material. The SI unit of measurement for shear rate is s −1, expressed as "reciprocal seconds" or "inverse seconds". [1] However, when modelling fluids in 3D, it is common to consider a scalar value for the shear rate by calculating the second invariant of the strain ...
The J-integral represents a way to calculate the strain energy release rate, or work per unit fracture surface area, in a material. [1] The theoretical concept of J-integral was developed in 1967 by G. P. Cherepanov [2] and independently in 1968 by James R. Rice, [3] who showed that an energetic contour path integral (called J) was independent of the path around a crack.
The Weissenberg number indicates the degree of anisotropy or orientation generated by the deformation, and is appropriate to describe flows with a constant stretch history, such as simple shear. In contrast, the Deborah number should be used to describe flows with a non-constant stretch history, and physically represents the rate at which ...
In fracture mechanics, the energy release rate, , is the rate at which energy is transformed as a material undergoes fracture. Mathematically, the energy release rate is expressed as the decrease in total potential energy per increase in fracture surface area, [ 1 ] [ 2 ] and is thus expressed in terms of energy per unit area.
The body of an Indian journalist who had reported on alleged corruption in the country has been found in a septic tank in Chhattisgarh state. Mukesh Chandrakar, 32, went missing on New Year's Day ...
Related: Utah Mom Fled Ethnic Cleansing in Myanmar with Young Family.Then Husband Killed Them in Murder-Suicide. The husband and wife had recently decided to separate at the time of the alleged ...
When is USA vs. Finland world juniors hockey game? The United States and Finland will play for gold at 7:30 p.m. ET at the Canadian Tire Centre in Ottawa.
A single viscosity measurement at a constant speed in a typical viscometer is a measurement of the instrument viscosity of a fluid (not the apparent viscosity). In the case of non-Newtonian fluids, measurement of apparent viscosity without knowledge of the shear rate is of limited value: the measurement cannot be compared to other measurements if the speed and geometry of the two instruments ...