Intrinsic methods in elasticity: a mathematical survey
نویسنده
چکیده
In the classical approach to elasticity problems, the components of the displacement field are the primary unknowns. In an “intrinsic” approach, new unknowns with more physical or geometrical meanings, such as a strain tensor field or a rotation field for instance, are instead taken as the primary unknowns. We survey here recent progress about the mathematical analysis of such methods applied to linear and nonlinear three-dimensional elasticity and shell problems. Méthodes intrinsèques en elasticité: Une revue mathématique Résumé. Dans l’approche classique des problèmes de l’élasticité, les inconnues principales sont les composantes du champ de déplacements. Dans une “approche intrinsèque”, des inconnues nouvelles ayant un sens plus physique ou géométrique, telles qu’un champ de tenseurs de déformations ou un champ de rotations, sont les inconnues principales. Nous faisons ici une revue de résultats récemment obtenus dans l’analyse mathématique de telles méthodes appliquées aux théories, linéaires ou non linéaires, de l’élasticité tridimensionnelle et des coques. Intrinsic methods in elasticity 1
منابع مشابه
بر آورد تابع تقاضای دارو در ایران از طریق بودجه خانوار در طی سالهای 1389-1370
Background: The rising expenditure of drugs is a worldwide policy concern. This research aimed to estimate drug demand function in Iranian urban population in order to help effective policy making for drug consumption rationalization. Methods: This is a descriptive–analytical research. The required data were gathered from the published statistics of Iran Statistics Center, Iran Central Bank an...
متن کاملExistence theorems in intrinsic nonlinear elasticity
We first show how the displacement-traction problem of nonlinear three-dimensional elasticity can be recast either as a boundary value problem or as a minimization problem over a Banach manifold, where the unknown is the Cauchy-Green strain tensor instead of the deformation as is customary. We then consider the pure displacement problem, and we show that, under appropriate smoothness assumption...
متن کاملIntrinsic motivation and psychological factors on wearing helmet among motorcyclists in Gorgan City, Iran, in 2016
Background: Motorcycles have a higher rate of fatality than cars within the same distance travelled. Head injuries are the main causes of death in motorcycle crashes. The objective of this study is to investigate intrinsic motivation and psychological factors on use of a helmet among motorcyclists in Gorgan City, Iran, in 2016. Materials and Methods: This cross-sectional survey was conducted a...
متن کاملShell models: old and new
Intrinsic methods in elasticity have been introduced in a landmark series of papers by Wei-Zhang Chien in 1944. During the last two decades, Professor Wojciech Pietraszkiewicz and his group have achieved major advances in their analysis from the mechanical and engineering viewpoints, as well as in their actual numerical implementation. However, it was only in 2005 that their mathematical analys...
متن کاملSize extensivity of elastic properties of alkane fragments
Using MP2, CCSD, and B3LYP methods of computational chemistry, we show length dependence in the intrinsic elastic properties of short alkane fragments. For isolated alkane fragments of finite length in the gas phase and zero temperature, the intrinsic elasticity constants are found to vary with the number of carbon atoms and its parity. From extrapolation of the elasticity constants calculation...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008