v2.05.106 SDLX106 — Soil impedances under a rectangular foundation embedded in a homogeneous medium

Summary:

This test contributes to the validation of Code_Aster - MISS3D chaining. It represents a typical case of calculating soil impedances under a rectangular foundation embedded in a homogeneous medium. The inverse transfer functions of the impedances obtained by the chaining between Code_Aster and MISS3D are compared to those obtained by another calculation method, using an exclusive modeling by Code_Aster, where the condition of an infinite medium is represented by absorbent elements assigned to the boundaries of a homogeneous soil volume surrounding the foundation. Differences of approximately 10% are obtained for 2 frequency values selected respectively in the low range and the high range.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Boundary conditions and mechanical loads
• 2. Benchmark solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. B modeling
• 5. C modeling
• 6. Summary of results