Seyed javid Zakavi

[ 1 ] - Evaluation of combined hardening model in ratcheting behavior of pressurized piping elbows subjected to in-plane moments

In this paper the ratcheting behavior of carbon steel(ASTM A106B) and stainless steel(304L) elbows is studied under steady internal pressure and in-plane external moments at frequencies typical of seismic excitations. The finite element analysis with the nonlinear isotropic/kinematic (combined) hardening model has been used to evaluate ratcheting behavior of the elbows. Material parameters have...