scholarly journals Discussion: “Direct Determination of Stresses in Plane Elasticity Problems Based on the Properties of Isostatics” (Theocaris, P. S., 1959, ASME J. Appl. Mech., 26, pp. 227–234)

1960 ◽  
Vol 27 (2) ◽  
pp. 372-372
Author(s):  
Gustav Mesmer
Keyword(s):  
Direct Determination ◽  
Plane Elasticity ◽  
Elasticity Problems

Direct Determination of Stresses in Plane Elasticity Problems Based on the Properties of Isostatics

1959 ◽  
Vol 26 (2) ◽  
pp. 227-234
Author(s):  
Pericles S. Theocaris
Keyword(s):  
Boundary Conditions ◽  
Experimental Method ◽  
Complex Variable ◽  
Direct Determination ◽  
Plane Elasticity ◽  
First Order ◽  
Differential Parameter ◽  
Elasticity Problems ◽  
Comparison Of The Results

Abstract An experimental method is developed for the calculation of stresses in plane elasticity problems. The method consists substantially in determining a function of the complex variable representing the field of isostatics. This function has a convenient form so that the boundary conditions can be expressed by simple relations. From the isostatics, which are traced experimentally, the differential parameter of first order h can be calculated all over the field. The components of stresses are expressed by relations depending on boundary conditions and the parameter h. The method is applied to two particular problems of plane elasticity and a comparison of the results obtained by this method and by analytic methods is provided.

The Direct Determination of I131 in Heterogeneous Fecal Specimens

1961 ◽  
Vol 41 (4) ◽  
pp. 380-384 ◽  
Author(s):  
Arthur F. Dratz ◽  
James C. Coberly
Keyword(s):  
Direct Determination

A New Method for Direct Determination of the Recoilless Fraction with Application to Magnetic Nanoparticles

2002 ◽  
Vol 721 ◽  
Author(s):  
Monica Sorescu
Keyword(s):  
Room Temperature ◽  
Average Particle Size ◽  
Direct Determination ◽  
Average Particle ◽  
Lattice Method ◽  
Recoilless Fraction ◽  
Single Room ◽  
Magnetite Particles ◽  
Physical Mixtures

AbstractWe propose a two-lattice method for direct determination of the recoilless fraction using a single room-temperature transmission Mössbauer measurement. The method is first demonstrated for the case of iron and metallic glass two-foil system and is next generalized for the case of physical mixtures of two powders. We further apply this method to determine the recoilless fraction of hematite and magnetite particles. Finally, we provide direct measurement of the recoilless fraction in nanohematite and nanomagnetite with an average particle size of 19 nm.

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