Failure analysis: cause analysis and redesign to avoid failure

Characterization of the failure

  • Mechanical, metallurgical and geometric analysis
  • Tightening method analysis and verification of tightening procedure respect
  • Simulation to reproduce the failure

75% of the bolted joint failures are caused by an inconsistent tightening

Redesign the bolted joint or the tightening method

Depending on the origin of the failure, the election of:

  • the best cost effective raw-material, the design and the process to avoid the failure.
  • a special design for strength-corrosion.
  • a specific design for high or very low temperature.
  • a special design for fatigue.
  • a specific tightening strategy.
  • the tightening control to avoid the non respect of tightening procedures.