NUMERICAL STUDY OF COMPRESSIVE BEHAVIOR OF CONCRETE AT HIGH STRAIN RATES
High strain rate unconfined compressional tests on concrete are simulated by a three-dimensional discrete-element method. The laboratory data set was provided by three unconfined experiments on a split Hopkinson pressure bar apparatus at very high strain rates. This numerical method was chosen, because it is well adapted to problems involving the characterization of fracturing and fragmentation in geomaterials. The simulations input data are the recorded experimental velocities, whereas the simulations output data are the computed forces that are compared with the experimental ones. The fit between the experimental and the numerical data is quite good. Based on this fit, it is shown that the strain rate dependency of the material strength can be explained by inertial effects.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Donze, F V
- Magnier, S-A
- Daudeville, L
- MARIOTTI, C
- Davenne, L
- Publication Date: 1999-10
Language
- English
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: p. 1154-63
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Serial:
- Journal of Engineering Mechanics
- Volume: 125
- Issue Number: 10
- Publisher: American Society of Civil Engineers
- ISSN: 0733-9399
- EISSN: 1943-7889
- Serial URL: http://ascelibrary.org/journal/jenmdt
Subject/Index Terms
- TRT Terms: Compression tests; Compressive strength; Concrete; Discrete element method; Fracture mechanics; Inertial forces; Laboratory tests; Strain (Mechanics)
- Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;
Filing Info
- Accession Number: 00770147
- Record Type: Publication
- Contract Numbers: CMS 9520277, BCS 9025010, F49620-01-C-0019
- Files: TRIS
- Created Date: Oct 10 1999 12:00AM