STRESSES AND DISPLACEMENTS IN ELASTIC LAYERED SYSTEMS. GENERAL THEORY-NUMERICAL STRESS CALCULATIONS IN FOUR-LAYERED SYSTEMS WITH CONTINUOUS INTERFACES

THE EXPRESSIONS OF THE STRESSES AND DISPLACEMENTS ARE DERIVED IN THE GENERAL CASE OF ELASTIC LAYERED SYSTEMS SUBJECTED, ON A CIRCULAR AREA OF THEIR UPPER HORIZONTAL SURFACE, TO THE ACTION OF ONE OF THE FOLLOWING STRESSES: (1) A UNIFORMLY DISTRIBUTED SHEAR STRESS, DIRECTED IN ONE DIRECTION, (2) A UNIFORMLY DISTRIBUTED SHEAR STRESS, DIRECTED TOWARDS THE CENTER OF THE CIRCULAR AREA, AND (3) A UNIFORMLY DISTRIBUTED VERTICAL STRESS. THE DERIVATIONS ARE MADE UNDER THE ASSUMPTION THAT THE SUPER-POSITION OF THE THREE STRESSES REPRESENTS THE ACTION OF A VEHICLE WHEEL ON THE UPPER SURFACE OF THE SURFACING COURSE. STARTING FROM THE DERIVED THEORETICAL FORMULAS OF THE STRESSES, NUMERICAL CALCULATIONS ARE PERFORMED IN THE PARTICULAR CASE OF FOUR- LAYERED SYSTEMS WITH CONTINUOUS INTERFACES. RESULTS SHOW THE COMPLEXITY OF THE INTERPRETATION OF THE MECHANICAL BEHAVIOR OF ELASTIC LAYERED SYSTEMS. THEY INDICATE THE NECESSITY IN PAVEMENT DESIGN TO TAKE INTO ACCOUNT SUCH PARAMETERS AS ELASTIC MODULI OF THE LAYERS, STRENGTH OF MATERIALS AND BOUNDARY CONDITIONS AT THE INTERFACES.

• Supplemental Notes:
  • Preprint, pP 223-238, 8 FIG, 2 TAB, 12 REF, 1 APP
• Authors:
  • Verstraeten, J
• Conference:
  • Intl Conf Struct Design Asphalt Pvmts
• Publication Date: 1967-8

Subject/Index Terms

• TRT Terms: Boundary value problems; Dislocation (Geology); Interfaces; Mathematical analysis; Modulus of elasticity; Numerical analysis; Pavement design; Shear stress; Strength of materials; Stresses; Superposition (Geology)
• Uncontrolled Terms: Boundary conditions
• Old TRIS Terms: Layered system mechanics; Superposition
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00206709
• Record Type: Publication
• Files: TRIS
• Created Date: May 13 1994 12:00AM