AN ITERATIVE LAYERED ELASTIC COMPUTER PROGRAM FOR RATIONAL PAVEMENT DESIGN
This study was conducted to develop a simple and easily operated computer program for the rational design of pavements. The program must yield results approximating those computed by the more sophisticated nonlinear finite element program. A linearly layered elastic computer program originally developed by the Chevron Oil Company was expanded and modified to include an iterative procedure for rational pavement design. Pavement response to multiple loads can be predicted using the nonlinear moduli of pavement materials. The new program is designated CHEVIT. The program uses the iterative procedures to determine the nonlinear moduli of pavement materials and then computes the stresses and strains in the pavement under a single wheel load by the Burmister linear layered elastic computational method. The principle of superposition is used to account for multiple wheel loads. For completeness, the CHEVIT program also accounts for linear problems and single loads. Results computed by the iterative layered elastic program were compared with those computed by the nonlinear finite element program.
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Corporate Authors:
U.S. Army Waterways Experiment Station
3909 Halls Ferry Road
Vicksburg, MS United States 39180-6199 -
Authors:
- Chou, Y T
- Publication Date: 1976-2
Media Info
- Pagination: 69 p.
Subject/Index Terms
- TRT Terms: Building materials; Calculation; Computer aided design; Computer programs; Deformation curve; Finite element method; Iterative methods; Loads; Mechanical elasticity; Mechanical strain; Nonlinear systems; Pavement base course; Pavement layers; Pavements; Pellets; Rational formula; Stresses; Structural analysis; Wheel loads
- Uncontrolled Terms: Computation
- Old TRIS Terms: Layered system mechanics; Pelleting; Rational formula; Strains
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 00133354
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt., FAA-RD-75-226
- Contract Numbers: DOT-FA73WAI-377
- Files: NTIS, TRIS, ATRI
- Created Date: Jul 13 1976 12:00AM