d4.06.14 sd_contact data structures

Summary:

This document describes the content of the sd_contact object produced by the DEFI_CONTACT command but also some objects used during resolution in non-linear operators.

Table of Contents

• 1. Generalities
• 2. Contact definition structure
• 3. Common objects for all formulations
  • 3.1. Integer parameters PARACI
  • 3.2. Integer parameters PARACR
• 4. Common object for one-sided contact
  • 4.1. Item NDIMCO
• 5. Objects common to all mesh formulations
  • 5.1. Zone-based pairing options
  • 5.2. Mesh pairing options (slave)
  • 5.3. Description of contact areas
  • 5.4. Excluding knots/stitches
  • 5.5. Information on stitches and knots
• 6. Specific objects for formulation DISCRETE
  • 6.1. Item CARADF
  • 6.2. SD char_meca
• 7. Specific objects for formulation CONTINUE
  • 7.1. Item CARACF
  • 7.2. Objects PSANOFR/SANOFR
  • 7.3. Item EXCLFR
  • 7.4. SD ligrel
• 8. Specific objects for formulation XFEM
  • 8.1. Item MODELX
  • 8.2. Item CARAXF
  • 8.3. Item XFIMAI
  • 8.4. Item XNRELL
  • 8.5. Item MAESCX
• 9. Specific objects for formulation LIAISON_UNIL
  • 9.1. Item NDIMCU
  • 9.2. Item COEFD
  • 9.3. Item LISNOE
  • 9.4. Item POINOE
  • 9.5. Objects CMPGCU and COEFG
  • 9.6. Item COEFPE
• 10. Basic fields for resolving continuous contact
  • 10.1. Elementary quantities for solving continuous method: routine mmchml_c
  • 10.2. Elementary quantities for solving method LAC: routine mmchml_l
• 11. Algorithms specific to the processing of contact statuses: continuous method
  • 11.1. Objects specific to cycling
  • 11.2. The cycling algorithm: ALGO_CONT = STANDARD/PENALISATION