EnginSoft Partnership
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Stress analysis of a ball valve
during pipeline lay

PROBLEM OVERVIEW
  • Investigation over the stress state of valve-body (7” 1/16 API 10000 psi) under loading conditions due to pipeline lay phase
  • Material non-linearity’s, considering elastic-plastic (without strain hardening) behavior
  • Assessing of the efficiency of connections between valve-body and pipeline with check of strains at valve-to-pipeline interfaces
MODELS and RESULTS
  • Development of highly refined three-dimensional finite element model of the valve-body had the main scope of developing a reliable investigation at the connections of pipeline to valve-body
  • Results in terms of equivalent plastic strain investigation along specified, critical, paths allowed to check that structural behavior meet the acceptable stress and strain limits proper of temporary loads as those ones of laying phase are

 

Stress Analysis of Ball Valve

CUSTOMER

PetroValves - Italy

AIM

Structural integrity assessment of valve-body and of valve-to-pipeline interface sections. The only reliable way to establish proper confidence over the valve structural behavior was the performing of analysis by means of dedicated finite element model