FACTORS THAT INFLUENCE THE DEVELOPMENT OF SOIL CONSTITUTIVE RELATIONS
Abstract
Computer codes which attempt to solve free-field ground shock problems should be based on mathematically defined constitutive models which realistically simulate the behavior of actual earth materials. Laboratory uniaxial strain and triaxial compression test data are presented to illustrate the effects of various factors such as loading rate, history of unloading- reloading, degree of saturation, weathering, geostatic stress and confining pressure on the stress-strain and strength properties used in soil constitutive relations. The factor which stands out as having by far the most influence on constitutive behavior is the state of stress to which the soil sample (or earth mass) is subjected. An attempt is being made to develop a completely nonlinear-inelastic constitutive model that, when subjected to the particular state of stress used in a laboratory property test, will essentially mirror the test results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1968
- Accession Number
- AD0695619
Entities
People
- John G. Jackson Jr.