u2.02.02 Instructions for using elements TUYAU_ *

Summary:

This document is a user manual for models TUYAU_3M and TUYAU_6M.

The finite elements TUYAU_3M and TUYAU_6M correspond to linear elements of straight or curved pipes. Element kinematics TUYAU combines both beam kinematics, which describe the overall movement of the pipe line, and shell kinematics, which describe the swelling, ovalization, and warping of the cross section.

These models can be used for problems with relatively thick three-dimensional pipes, in linear or non-linear mechanical analysis and in small displacements.

• 1. Introduction
• 2. Modeling capabilities
  • 2.1. Reminder of the formulation
  • 2.2. Comparison to other items
• 3. Command set description
  • 3.1. Assignment of modeling and spatial discretization
  • 3.2. Basic characteristics: AFFE_CARA_ELEM
  • 3.3. Materials: DEFI_MATERIAU
  • 3.4. Loads and limit conditions: AFFE_CHAR_MECA and AFFE_CHAR_MECA_F
  • 3.5. Application of thermal expansion.
• 4. Resolution
  • 4.1. Linear calculations: MECA_STATIQUE and other linear operators
  • 4.2. Nonlinear calculations: STAT_NON_LINE and DYNA_NON_LINE
  • 4.3. Dynamic calculations
• 5. Additional calculations and post-treatments
  • 5.1. Elementary matrix calculations: operator CALC_MATR_ELEM
  • 5.2. Element-based calculations: operator CALC_CHAMP
  • 5.3. Node calculations: operator CALC_CHAMP
  • 5.4. Quantity calculations on all or part of the structure: operator POST_ELEM
  • 5.5. Quantity field component values: operator POST_RELEVE_T
• 6. Examples
  • 6.1. Linear static analysis
  • 6.2. Nonlinear static material analysis
  • 6.3. Modal analysis in dynamics
  • 6.4. Nonlinear dynamic analysis
• 7. Bibliographical references