Center for Reliable Energy Systems

Fatigue Assessment

CRES has extensive knowledge and experience on the fatigue assessment of welded joints.  Our assessment covers (1) estimation of initiation period using material science and micromechanics, (2) crack growth calculations using fracture mechanics, and fatigue life estimation using traditional S-N curves.  We employ a variety of methods to evaluate the stress state which drives the potential fatigue failures, including the structural stress approach and local approach.  The fatigue assessments are performed either in the initial design processes or as a part of failure analysis.