v6.04.225 SSNV225 — Behavioral law HAYHURST: creep test

Summary:

This document presents a creep test in large deformations to validate the capabilities of behavior model HAYHURST, to represent primary, secondary and tertiary creep.

The various models make it possible to test all integration methods:

• implicit integration with Jacobian analytic matrix (modeling A).

• the implicit integration with the Jacobian matrix obtained by disturbance (modeling B);

• explicit integration by Runge_Kutta (B modeling);

Modeling C, for its part, is a copy of modeling B making it possible to validate the HAYHURST_FO keyword of DEFI_MATERIAU, thanks to constant parameters, artificially dependent on temperature.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Property of the materials
  • 1.3. Boundary conditions and loads
• 2. Reference Solution
• 3. Modeling A
  • 3.1. Characteristic of modeling
  • 3.2. Tested sizes and results
• 4. B and C models
  • 4.1. Characteristic of modeling
  • 4.2. Tested sizes and results
• 5. Summary of results