Author: V. N. Nikolaevskii Publisher: ISBN: Category : Languages : en Pages : 17
Book Description
A theoretical analysis is made of the structure of a stationary shock wave in soft water-saturated soils and rocks on the assumption that identical pressures exist in the phases. It is indicated that two-phase solid media with different phase stresses and velocities may be used as adequate mathematical models for water-saturated rocks and soils. First, the main characteristics of the propagation of sound waves in soft water-saturated soils and rocks are discussed using a system of linearized equations of motion which describe two-phase media. It is shown that when dynamic forces are applied to water-saturated soils, the imparted impulse at first spreads uniformly in all phases as a result of which corresponding stresses are received. The medium passes into a non-equilibrium 'frozen' state which is attained at high oscillation frequencies when there is no pulse (nor heat) transfer between the phases. The mechanism which governs interaction and heat transfer processes, during a characteristic relaxation time, brings the medium into an equilibrium state. (Author).
Author: G. M. Lakhov Publisher: ISBN: Category : Shock waves Languages : en Pages : 380
Book Description
The book considers the propagation of shock and continuous waves in solid plastic media, wave refraction on media interfaces, and also interaction with the elements of structures. The problem of considering viscous properties of media when solving certain wave problems is considered. The results are applied also to waves in rods. Specific attention is given to the presentation of laboratory findings on the dynamic properties of soils and on the regularities of the propagation of pressure waves in soils. Information from the general theory of shock waves, which is necessary for understanding the basic material, is presented. (Author).
Author: Lee Davison Publisher: Springer Science & Business Media ISBN: 3540745696 Category : Science Languages : en Pages : 439
Book Description
My intent in writing this book is to present an introduction to the thermo- chanical theory required to conduct research and pursue applications of shock physics in solid materials. Emphasis is on the range of moderate compression that can be produced by high-velocity impact or detonation of chemical exp- sives and in which elastoplastic responses are observed and simple equations of state are applicable. In the interest of simplicity, the presentation is restricted to plane waves producing uniaxial deformation. Although applications often - volve complex multidimensional deformation fields it is necessary to begin with the simpler case. This is also the most important case because it is the usual setting of experimental research. The presentation is also restricted to theories of material response that are simple enough to permit illustrative problems to be solved with minimal recourse to numerical analysis. The discussions are set in the context of established continuum-mechanical principles. I have endeavored to define the quantities encountered with some care and to provide equations in several convenient forms and in a way that lends itself to easy reference. Thermodynamic analysis plays an important role in continuum mechanics, and I have included a presentation of aspects of this subject that are particularly relevant to shock physics. The notation adopted is that conventional in expositions of modern continuum mechanics, insofar as possible, and variables are explained as they are encountered. Those experienced in shock physics may find some of the notation unconventional.
Author: Raymond Brun Publisher: Springer Science & Business Media ISBN: 3642788351 Category : Science Languages : en Pages : 490
Book Description
Recently, there have been significant advances in the fields of high-enthalpy hypersonic flows, high-temperature gas physics, and chemistry shock propagation in various media, industrial and medical applications of shock waves, and shock-tube technology. This series contains all the papers and lectures of the 19th International Symposium on Shock Waves held in Marseille in 1993. They are published in four topical volumes, each containing papers on related topics, and preceded by an overview wrtitten by a leading international expert. The volumes may be purchased independently.
Author: J.F. Thimus Publisher: CRC Press ISBN: 1000100235 Category : Technology & Engineering Languages : en Pages : 666
Book Description
This text features 105 papers dealing with the fundamentals and the applications of poromechanics from the Biot conference of 1998, held in Louvain-la-Neuve. Topics include: wave propogation; numerical modelling; identification of poromechanical parameters; and constitutive modelling.
Author: V. N. Nikolaevskii
Author: G. M. Lakhov
Author: Lee Davison
Author: Louis Miller
Author: N. Zhubayev
Author: Raymond Brun
Author: 
Author: Josephus G. van der Grinten
Author: J.F. Thimus
Author: