Accession Number : ADA290030

Title :   Investigation of an Alternative Finite Element Procedure: A One-Step, Steady-State Analysis.

Descriptive Note : Contractor rept. Sep 93-Sep 94 (Final),

Corporate Author : CALIFORNIA UNIV DAVIS DEPT OF CIVIL ENGINEERING

Personal Author(s) : Herrmann, Leonard R. ; Mello, Joe

PDF Url : ADA290030

Report Date : DEC 1994

Pagination or Media Count : 39

Abstract : A one-step, steady-state finite element analysis procedure that is applicable to the problem of determining stresses and the driving force to pass a plane through soil at constant velocity is developed. This type of analysis is shown to be an alternative to doing a multi-step analysis using a commercial finite element code if it becomes computationally expensive. A steady-state problem allows the time dependence to be expressed as a space dependence and thus solved in one step. The feasibility of this type of analysis is demonstrated but more investigation is needed in soil failure at the plow tip and an associated soil plasticity model before any attempt is made to produce a production three-dimensional one-step code or to do a multi-step transient analysis using existing code. (AN)

Descriptors :   *FINITE ELEMENT ANALYSIS, *SOIL MODELS, VISCOPLASTICITY, VELOCITY, MATHEMATICAL MODELS, SOFTWARE ENGINEERING, STEADY STATE, STRESS ANALYSIS, TIME DEPENDENCE, TWO DIMENSIONAL, LOADS(FORCES), VISCOELASTICITY, PROBLEM SOLVING, MATHEMATICAL PROGRAMMING, CODING, FEASIBILITY STUDIES, PRESSURE DISTRIBUTION, SOIL STRUCTURE INTERACTIONS, SOIL COMPACTION.

Subject Categories : Soil Mechanics
      Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE