力学进展

REVIEW ON THE RESEARCHES OFGENERALIZED HAMILTONIAN SYSTEMS

1994, 24(3): 289-300. doi: 10.6052/1000-0992-1994-3-J1994-028

Abstract(1820)

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Abstract:
The generalized Hamiltonian system (GHS), defined directly by thegeneralized Poisson bracket, is a generalization of the traditional Hamiltoniansystem defined on (even dim.) symplectic manifold. The GHS can describe moregeneral dynamical systems including odd- and ∞-dimensional systems, hence thestudy on this type of systems will bc very important in theory and applications.In this paper, we give a review on the researches of generalized Hamiltoniansystems in China and abroad.

VARIOUS PROBLEMS OF MECHANICSIN NUCLEAR FUSION REACTORS

1994, 24(3): 301-314. doi: 10.6052/1000-0992-1994-3-J1994-029

Abstract(1641)

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THE RESEARCH ADVANCES IN ELECTRORHEOLOGY

1994, 24(3): 315-335. doi: 10.6052/1000-0992-1994-3-J1994-030

Abstract(1914)

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Electrorheology is one of the newly developed research field duringthe recent years. The main topics discussed are, (1) The historical outline ofelectrorheology; (2) The clectrorheological fluids; (3) The mechanism ofelectrorheological effect; (4) The application of clcctrorheological fluid. Therecent research works on the electrorheological fluid and the mechanism ofclectrorheological effect arc cmphasized. The influential factors on ER effectare discussed mainly based on the prcsented ER mechanism. Compar...

DEVELOPMENT OF THE TORSlON PENDULUM AND THEEARLY RESEARCH ON GRAIN BOUNDARY RELAXATIONAND THE COLD-WORK INTERNAL FRICTION PEAK

1994, 24(3): 336-352. doi: 10.6052/1000-0992-1994-3-J1994-031

Abstract(2294)

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This paper gives a historical rcview of the early research on anelas-ticity during the author,s stay at Chicago (1945-1949). The rcsearch topicssuggested initially by Professor C. Zener, the founder of the concept of anelas-ticity, include the studies of the mechanical properties of grain boundaries andthe slip bands in metals by anelastic measurements. The torsion pendulum andthe moving coil twisting arrangement wcrc dcvelopcd for this purpose so that in-ternal friction, dynamics modulus defcct, creep unde...

SMART STRUCTURE AND ITS APPLICATIONS

1994, 24(3): 353-362. doi: 10.6052/1000-0992-1994-3-J1994-032

Abstract(1844)

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in this paper, the concept of smart structures is introduced. Theresearch and applications of smart structures are reviewed briefly.

APPROXIMATE THEORIES AND CODES OF DYNAMICFINITE ELEMENT FOR ANALYSIS OF THEHIGH-VELOCITY IMPACT

1994, 24(3): 362-373. doi: 10.6052/1000-0992-1994-3-J1994-033

Abstract(1663)

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The approximate theories of the dyamic finite element method usedfor analysis of the high-velocity impact and the codes compiled by ourselvesare introduced. The dynamic finite element program has been used and will beimproved in practice.

RECENT OEVELOPMENT OF CONSTITUTIVEMODELS FOR GEOLOGICAL MATERIALS

1994, 24(3): 374-385. doi: 10.6052/1000-0992-1994-3-J1994-034

Abstract(1739)

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in this papcr, the development of constitutive models for geologicalmaterials over the last twenty years is reviewed. An attempt is made here torevicw in a very concise manner some of the common models for geological mate-rials, such as, isotropic hardening models,nested surface models,bounding surfacemodels, etc.

THE TECHNIQUE OF GENERALIZED COMPATIBILITYAND DOUBLE SET PARAMETER METHOD

1994, 24(3): 386-390. doi: 10.6052/1000-0992-1994-3-J1994-035

Abstract(1515)

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The technique of generalized compatibility on the basis of modifiedpotential energy functional is reviewed and a more generalized procedure ofdouble set parameter method is briefly described in this paper.

DEVELOPMENT PROSPECTS OF STUDIES ON SOMECOMPUTATIONAL STRUCTURAL MECHANICS PROBLEMSIN STRUCTURAL ENGINEERING SCIENCE

1994, 24(3): 391-399. doi: 10.6052/1000-0992-1994-3-J1994-036

Abstract(1929)

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After a review of the growth of computational structural mechanics,a survey is made for the following seven important computational mechanicsproblems in structural engineering science: (1) Basic theoretical problems ofnumerical methods (inclilding error estimation theory and adaptive mesh refine-ment strategy,multi-variable finite element theory and semi-analytical numericalmethod). (2) Optimum design of engineering structures. (3) Structural construc-tion mechanics. (4) Numerical modelling and simulation b...

THE RESEARCH DEVELOPMENT OF FATIGUE STUDIES OFCERAMICS AND CERAMIC MATRIX COMPOSITES

1994, 24(3): 399-408. doi: 10.6052/1000-0992-1994-3-J1994-037

Abstract(1675)

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This paper provides a brief overview of research progress during thelast decade in fatigue of ceramics and ceramic matrix composites (CMC).Primary emphasis is given to cyclic fatigue of transformation toughened ceram-ics. Some suggestions are made for further investigation.

ON ROCK HYDRAULICS MODELS

1994, 24(3): 409-417. doi: 10.6052/1000-0992-1994-3-J1994-038

Abstract(1376)

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in this paper the rock hydraulics modcls arc discusscd and analysedtogether with their testing and applications in rccent years.

1994, 24(3): 418-430. doi: 10.6052/1000-0992-1994-3-J1994-039

Abstract(1073)

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1994 Vol. 24, No. 3

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