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1995 Vol. 25, No. 1

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STATISTICAL MESO-SCOPlC DAMAGE MECHANLCS AND DAMAGE EVOLUTION INDUCED CATASTROPHE
1995, 25(1): 1-40. doi: 10.6052/1000-0992-1995-1-J1995-036
Abstract(2379) PDF(1951)
Abstract:
Damage and failure in materials are among complex and fundamental problems in solid mechanics,In rccent years,a series of new progresses have been made,This paper reviews the progress in statistical meso-scopic damage mechanics and evolution induced catastrophe model,This approach combines new achievements in mechanics,statistical physics and nonlinear science, and re- presents a new attempt in the study of material damage and failure.
RECENT ADVANCES OF CONSTITUTIVE DESCRIPTION OFNONPROPORTIONAL CYCLIC PLASTICITY AND VISCOPLASTICITY
1995, 25(1): 41-59. doi: 10.6052/1000-0992-1995-1-J1995-037
Abstract(1824) PDF(1106)
Abstract:
The constitutive equations of cyclic plasticity and cyclic viscoplasti- city of metallic matcrials have been a very important field of solid mechanics for morc than ten years,In the paper, bounding surface constitutive theories,the endochronic lheory and viscoplastic theories of metallic materials under non- proportional cyclic loadingsnre prcsented together with recent advances,The definitions of nonproportionality, the mcmory effects on complex strain am- plitude history,and material hardcning and flow r...
DEVELOPMENT OF ASEISMIC RESEARCHON LIQUID STORAGE TANKS
1995, 25(1): 60-76. doi: 10.6052/1000-0992-1995-1-J1995-038
Abstract(1394) PDF(772)
Abstract:
This paper is a ocmprehensive summary about the aseismic researchon the cylindrical flat tanks of liquid storage standing on ground, with specialemphasis on the uplift resetrch. Evaluations are made for the results obtainedin this field, and some future research trends are pointed out.
TVO-PHASE CRITICAL FLOW
1995, 25(1): 77-84. doi: 10.6052/1000-0992-1995-1-J1995-039
Abstract(2227) PDF(1311)
Abstract:
In the past forty years,two-phase critical flow has always been an active research subject due to its particular importance in the safety analysis of water cooled nuclar reactors.In this paper,review is made on the two-phase critical homogcneous equilibrium model,slip model,thermal nonequilibrium model and two-fluid model,logether with detailed discussions on the thermal nonequilibrium dynamics rclated to two-fluid model,It is concluded that so far. no numerical model can predict accurately the mass flow ra...
ELECTROMECHANICAL PROPERTIES OF BONE
1995, 25(1): 85-101. doi: 10.6052/1000-0992-1995-1-J1995-040
Abstract(1648) PDF(849)
Abstract:
The electromechanical behaviour of bone concerns two mechanisms:the piezoelectricity and the electrokinetic phenomena,This paper reviews the studies on them,including the origins,experimental techniques and some obtained results.
ADVANCES IN THE RESEARCH FOR AERODYNAMIC CHARACTERISTICS OF WRAP-AROUND FINS
1995, 25(1): 102-113. doi: 10.6052/1000-0992-1995-1-J1995-041
Abstract(2330) PDF(922)
Abstract:
This paper enumerates application examples of wrap-around fins and/or wings in the scope of tactlcal weapon. The geometricalcharacteristics,aerodynamic characteristics,its advanlages and disdvantages and aerodynamic configurations are disctissed.A review on the theoretical and cxperimental research in aerodynamic characterislics of wrap-around fins is given. The oroblems for a further research are poinled out at the end of this paper.
Stochastic fem and its applications in engineering
1995, 25(1): 114-126. doi: 10.6052/1000-0992-1995-1-J1995-042
Abstract(2465) PDF(2969)
Abstract:

Various versions of stochastic FEM,including the methods of random field discretization,are comprchensivly discussed,The reliability calculations based on stochastic FEM and the applications of stochastic FEM in engineering are reviewed At the end of the paper the author'scomments with respect to the future improvement of stochastic FEM afe given.
NUMERICAL MODELING OF NON-IDEAL DETONATIO IN CONDENSED EXPLOSIVES
1995, 25(1): 127-133. doi: 10.6052/1000-0992-1995-1-J1995-043
Abstract(1982) PDF(1051)
Abstract:
The current state of the study on numerical modeling of non-ideal detonation in condensed explosives is presented,The fundamental idea and their problems are discussed in detail for the specific reaction rate,detonation shock dynamics(DSD)and the front tracking method.
DYNAMICS OF HIGH-SPEED RAILWAY VEHICLE SYSTEM
1995, 25(1): 134-143. doi: 10.6052/1000-0992-1995-1-J1995-044
Abstract(2301) PDF(2222)
Abstract:
The dynaminical problems:are discussed systematically in the domain of high-speed railway vehicle system, which include struclural dynamics,vehicle dynamics,acrodynamics and some interaction problems.Emphasis is placed on some special phenomenand the analysis method in dynamics of high-speed rail- way vehicle system. The prcsent situation and direction of future studies in the field are indicated.

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