Procedure of SPC data treatment for “uniaxial test correlation”

Abstract

In order to determine creep properties from small punch creep (SPC) tests, several theoretical models and analytic methods are applied, such as the Chakrabarty’s membrane stretch model and reverse finite element method. However, because the problem is too complicated, differences are always found between the theoretical prediction and the uniaxial creep tests. In this paper, a concept of “Uniaxial test correlation” is proposed without any theoretical assumption and analytic calculation. By comparison of the rupture time in SPC with the uniaxial creep rupture data, the equivalent stress

Keywords

• “uniaxial test correlation”
• small punch creep tests
• creep properties
• rupture time dependence
• norton creep law