GRAINS : A NON-LINEAR ELASTIC MODEL
After a literature survey it was concluded that a fundamental, non-linear elastic model would be the most appropriate material description for the granular base course. A review is given of general principles of thermodynamics. There are generally valid basic equations taken from thermodynamics that apply to cases of static- and dynamic loading. The general constitutive equations are worked out for granular materials under static loading. The model reported is valid for all granular materials, including sand. The applied regression-method is explained and results are given. The three parameters, K1, G1 (tangent stiffness moduli) and n must be determined from the measurements by means of regression-analysis. Because the three-parameter model gives satisfactory results for Eastern Scheldt sand and crushed concrete of 95 days, (the two most important materials) as well as gravel, it will be used in further research. This report was originally published as a thesis by the Technical University of Delft in three parts called Korrelige materialen: Deel 1, November 1988; Deel 2, February 1989 and Deel 3, March 1989.
Technische Universiteit DelftStevinweg 1
- ALLAART, A P
- Publication Date: 1989-6
- Pagination: 88 p.
- TRT Terms: Aggregates; Base course (Pavements); Concrete; Crushed rock; Granular materials; Gravel; Mathematical models; Nonlinear systems; Pavement design; Sand; Soil mechanics; Theses
- ITRD Terms: 4577: Aggregate; 2990: Basecourse; 4755: Concrete; 4173: Crushed stone; 4107: Granular; 4575: Gravel; 6473: Mathematical model; 6482: Non linear system; 3055: Pavement design; 4105: Sand; 5755: Soil mechanics; 8597: Thesis
- Subject Areas: Geotechnology; Highways; Pavements;
- Accession Number: 00606556
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Mar 31 1991 12:00AM