Numerical Analysis of Miniature Disk Bend Specimens Under Creep Condition

Since it only requires a small surveillance sample, small punch creep test (SPCT) analysis has been used to estimate the lifespan of power stations and nuclear reactors. As the specifications in uniaxial creep test (UCT) and SPCT differ, numerous correlations have been proposed for calculation of conventional tensile characteristics for elastic plastic behavior of metallic materials. Due to the high operating temperatures in nuclear power plants and highly developed ultra-super critical plants, many of the components experience creep deformation. In order to determine how long a component will last, it is crucial to understand the correlations between creep properties calculated through SPCT. Thin disk specimens subjected to SPCT can be thought of as a helpful method for identifying the creep characteristics of components exposed to high temperatures. The challenge is to estimate the conventional bulk creep properties from a small punch sample. Finite element analysis (FEA) of SPCT of a metallic material can help in estimation of bulk properties and therefore FEA of a metallic material having \(E/Y_{{\text{S}}} = 277\) with a power law creep behavior is carried out using ABAQUS software. This particular paper focuses on the influence of specimen thickness on the site of maximum stress, sometimes known as the weakest section, when the punch travel time was varied.