Abstract
The creep constitutive equation for PLLA was constructed based on 0 projection method. The effect of forging on creep behavior was considered in this equation, and then the equation was introduced into the FE program for the simulation of creep behavior of forging-notched PLLA. The creep rupture time in forging-notched specimen was larger than cutting-notched specimen under lower stress level. The calculated creep behaviors in smooth specimen using the constitutive equation were good agreement with experimental creep behaviors. The FE analyses could express the creep behavior in forging-notched specimen qualitatively, although the calculated creep strain values around notch were quite larger than the experimental data.
