I want to do a simple creep simulation of plastic materials at working temperatures (around 70 degrees). Now I have the time and strain curves of the materials at 23 degrees, 7Mpa, 17Mpa, 34Mpa&40 degrees, 7Mpa, 17Mpa, 28Mpa, and 60 degrees, 7Mpa, 17Mpa, 21Mpa; There are two questions: 1. How to obtain the constitutive model of materials through these curves; 2. How to calculate the creep life of the material at operating temperature;

Abaqus ​​​​​​​