Evaluation of the creep behavior of 10CrMo910 steel via computational simulation using the small punch creep test method

Abstract

Aqui estão as traduções técnicas, com atenção especial aos modelos matemáticos de fluência e aos parâmetros de simulação por Elementos Finitos (FEA):

Inglês

Abstract: The present study aimed to evaluate the creep behavior of 10CrMo910 steel through computational simulation, using experimental data from conventional creep tests. Initially, the constants for the Time Hardening, Norton, and Combined Time Hardening constitutive creep models were determined using linear and non-linear regressions applied to data from the NIMS database. The simulations were performed using ANSYS® software, utilizing an axisymmetric model and a structured mesh to optimize computational resources. Boundary conditions were defined to faithfully represent the experimental test, accounting for friction between components. At loads of 110 N and 200 N, an increase of nearly 1,000 hours until rupture was observed; furthermore, it was found that the variation in the friction coefficient had a significant impact on the time to rupture