DEFORMATION ANALYSIS UNDER VARIABLE LOADING
The inelastic analysis of strain hardening and elastoplastic frame structures under variable loading is presented. The formulation adopted is essentially that proposed by Maier who, using an "imposed rotation" method within a modern matrix framework, reduced the final mathematical form to a linear complementarity problem (lcp). The nonproportional loading path is subdivided into a set of individually proportional stages - the basis of the 'multistage method'. Under the assumption of holonomic behaviour, the lcp within each loading stage is solved through Hildreth's modified Gauss-Seidel iterative procedure. The nonholonomic nature of plastic deformations is only allowed for in passing from one stage to the subsequent one by suitable adjustment of the assumed piecewise linear constitutive laws. Two main classes of hardening models are presented with detailed treatment of the stage updating of yield limits. A brief discussion on the specification of the appropriate hardening parameters for critical sections of essentially mild steel members is included. Finally, examples are given to illustrate both the theoretical and practical applications of the method. (Author/TRRL)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01410296
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Corporate Authors:
IPC Science and Technology Press Limited
IPC House, 32 High Street
Guildford, Surrey England -
Authors:
- Tingey, J
- Publication Date: 1981-1
Media Info
- Features: Figures; References;
- Pagination: p. 2-8
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Serial:
- Engineering Structures
- Volume: 3
- Issue Number: 1
- Publisher: Elsevier
- ISSN: 0141-0296
- Serial URL: http://www.sciencedirect.com/science/journal/01410296
Subject/Index Terms
- TRT Terms: Calculation; Deflection; Deformation; Elastoplasticity; Forecasting; Loads; Mathematical analysis; Methodology; Steel structures; Strain hardening; Structures
- Uncontrolled Terms: Elastic plastic analysis; Loading
- ITRD Terms: 6471: Analysis (math); 6464: Calculation; 5586: Deflection; 5595: Deformation; 3355: Engineering structure; 132: Forecast; 5567: Load; 9102: Method
- Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I34: Steels and Metals;
Filing Info
- Accession Number: 00334941
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- Files: ITRD, TRIS, ATRI
- Created Date: Aug 15 1981 12:00AM