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Statics
About: Statics is a research topic. Over the lifetime, 1494 publications have been published within this topic receiving 21675 citations.
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01 Nov 1992TL;DR: In this article, Coulomb's method of wedges and differential slices were used to determine the stress and strain rate of Coulomb material, and the conical yield function was used to predict mass flow rate.
Abstract: 1. Introduction 2. The analysis of stress and strain rate 3. The ideal Coulomb material 4. Coulomb's method of wedges 5. The method of differential slices 6. Determination of physical properties 7. Exact stress analysis 8. Velocity distributions 9. The conical yield function 10. The prediction of mass flow rate Problems Appendices Index.
953 citations
TL;DR: In this article, various formats of gradient elasticity and their performance in static and dynamic applications are discussed and an overview of length scale identification and quantification procedures is given, together with the variationally consistent boundary conditions.
723 citations
Book•
01 Jan 2002
TL;DR: In this article, the inverse problem of dynamics mechanical work and energy in human movement is studied, where inertial properties of cadavers are measured in living subjects geometric modeling of human body segments.
Abstract: External contact forces statics of multilink serial chains - transformational analysis statics of multilink chains - stability of equilibrium inertial properties of the human body joint torques and forces - the inverse problem of dynamics mechanical work and energy in human movement. Appendices: inertial properties of cadavers inertial properties measured in living subjects geometric modeling of human body segments.
665 citations
TL;DR: The three-dimensional structure of senkirkine, ClsHnN06, was determined by X-ray crystallography as mentioned in this paper, and the structure was solved by statistical methods.
Abstract: The three-dimensional structure of senkirkine, ClsHnN06, was determined by X-ray crystallography. The substance crystallizes in the orthorhombic space group P212121 with four molecules in a unit cell with dimensions a = 24.601 k 0.002, b = 9.133 f 0.001, and c = 8.708 f 0.001 A. Intensity data were collected with a diffractometer and the structure was solved by statistical methods. Refinement by least squares, which included hydrogen atoms, tonverged at R 0.045 for 2275 observed reflections. The transannular N . . .C distance was found to be 2.292 (4) A. The extent of the partial bond in this and in several other structures is assessed. A correlation is established between the bond number and the frequency of the carbonyl peak in the infrared spectrum. uring the past years the crystal structures of three D alkaloids in which there exists an intramolecular N . . . C=O interaction were determined in these laboratories, viz., protopine, cryptopine, and clivorine. More recently it was suggested4 that such an interaction may be pertinent to the physiological activity of methadone. It seemed desirable, therefore, to obtain additional geometrical information and, if possible, to correlate it to the extensive chemical and spectroscopic (1) S. R. Hall and F. R. Ahmed, Acta Crystallogr., Sect. B, 24, (2) S. R. Hall and F. R. Ahmed, Acta Crystallogr., Sect. B , 24, 346 (3) K . B. Birnbaum, Acta Crystallogr., Secf. B, 28,2825 (1972). (4) H. B. Burgi, J. D. Dunitz, and E. Shefter, Nature (London), New 337(1968).
604 citations