力学进展

DSMC METHOD AND THE CALCULATION OF RAREFIED GAS FLOW

1996, 26(1): 1-13. doi: 10.6052/1000-0992-1996-1-J1996-001

Abstract(3290)

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DSMC method'is a physically based probabilistic simulation method. Among the numerous analytical, numerical and simulative methods, DSMC method is the only Procedure capable of simulating the flow of real gas with complex three-dimensional configurations. The method is supported by experiments both on the level of global macroscopic characteristics and the level of microscopic characteristics such as the velocity distribution functions. The present paper reviews the recent development'of the DSMC method, in...

ADVANCES IN THE STUDY OF MECHANICAL BEHAVIORS OF MATERIALS BY MOLECULAR DYNAMICS METHOD

1996, 26(1): 14-27. doi: 10.6052/1000-0992-1996-1-J1996-002

Abstract(1924)

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This paper gives a brief overview of the advances in the research of crack, dislocation, grain boundary and their interactions by molecular dynamics method. The contents include:dislocation nucleation and emission from crack tip; the unstable stacking criterion for the dislocation emission from crack tip; the effect of crack and crystal geometry on the dislocation emission; tem-perature dependent dislocation nucleation and emission processes; and the in-teraction of an array of dislocations emitted from cra...

ON NUMERICAL ALGORITHMS FOR DIFFERENTIAL/ALGEBRAIC EQUATIONS OF MOTION OF MULTIBODY SYSTEMS

1996, 26(1): 28-40. doi: 10.6052/1000-0992-1996-1-J1996-003

Abstract(2558)

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The study of differential/algebraic equations of motion of multibodysystems (the Euler-Lagrange equations) is research focus lin fields of dynamoicsand numerical analysis. Various integration methods of such equations are presented in this paper.'f

HYDRAULIC MECHANISM OF SOIL EROSION(Ⅱ)──WIND EROSION

1996, 26(1): 41-55. doi: 10.6052/1000-0992-1996-1-J1996-004

Abstract(1416)

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The rapid increase of soil erosion poses a severe threat on the agriculture development and human sustenance.It becomes one of the global environmental disasters.Hence,more and more attention has been attracted to the studies of soil erosion as well as to the prediction and control of erosion.In the pressent paper,a comprehensive literature survey Was made Of wind erosion and the relevant investigation progress was analyzed and estimated

ADVANCES IN STUDIES ON DYNAMIC BUCKLING OF STRUCTURE SUBJECTED TO FLUID-SOLID IMPACT LOADING

1996, 26(1): 56-67. doi: 10.6052/1000-0992-1996-1-J1996-005

Abstract(1735)

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The achievements and advances in studies on dynamic buckling of structure subjected to fluid-solid impact loading are systematically reviewed.The features of fluid-solid impact buckling and the experiment results of columns, grillages, rectangular stlips, plates and cylindrical shells under solid impact loading are described. Finally, the problems which remain to be solved in experiment and theory are also suggested

THE RESEARCH ADVANCES IN THE DYNAMICS OF EXPLOSIVE CHAMBERS

1996, 26(1): 68-77. doi: 10.6052/1000-0992-1996-1-J1996-006

Abstract(1642)

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Theoretical and experimental achieyements on the dynamic behavior of explosive chambers under internal explosive loading are reviewed together with their prospective developments and some suggestions are made.

REVIEW AND PROSPECT OF MHD INTERMEDIATE SHOCK

1996, 26(1): 78-86. doi: 10.6052/1000-0992-1996-1-J1996-007

Abstract(1444)

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Traditionally,intermediate shock was considered as the kind of shock which is unevolutionary. A great interest in studying intermediate shock hasbeen shown since its structure was discovered in MHD simulation recently. Inthis paper, a review is made on its history and progress and the traditional evolution theory. Based on the evolution theory, the existance of intermediate shock is excluded.A brief introduction of the new achievements in that fieldand some of our comments are also presented here.

INTERACTION BETWEEN HEART AND VASCULATURE

1996, 26(1): 87-106. doi: 10.6052/1000-0992-1996-1-J1996-008

Abstract(1407)

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Physiologists have long been interested in the interaction between the heart and vasculature. Until recently,the concept of ventricular vascular interaction has found important clinical application. The description of ven-tricular function in terms of both the time-varying elastance and the pump function graph and the quantification of vascular function in terms of impedance are two major developments of biomechanics. This paper presents a summary ofthe history of the researchs on the interaction between he...

DEVELOPMENT OF THE RESEARCH ON THE THERMAL FATIGUE LIFE PREDICTION OF PACKAGING STRUCTURES

1996, 26(1): 107-113. doi: 10.6052/1000-0992-1996-1-J1996-009

Abstract(1462)

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In this paper, an overview of the development of prediction study on the thermal fatigue life of electronic packages is presented, including theore-tical and experimental aspects as well as failure mechanism analysis. A pro-phecy on the research trend in this area is suggested.

1996, 26(1): 114-137. doi: 10.6052/1000-0992-1996-1-J1996-010

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1996, 26(1): 138-138. doi: 10.6052/1000-0992-1996-1-J1996-011

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1996, 26(1): 138-138. doi: 10.6052/1000-0992-1996-1-J1996-012

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1996, 26(1): 143-143. doi: 10.6052/1000-0992-1996-1-J1996-014

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1996, 26(1): 6140-143. doi: 10.6052/1000-0992-1996-1-J1996-013

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1996 Vol. 26, No. 1

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