Study of the upper die clamping conditions in the small punch test

被引：13

作者：

Andres, David ^{[1
]}

Dymacek, Petr ^{[2
]}

机构：

[1] Univ Cantabria, ETS Ingenieros Caminos Canales & Puertos, LADICIM Lab Mat Sci & Engn, Ave Los Castros 44, E-39005 Santander, Spain

[2] Acad Sci Czech Republ, Inst Phys Mat, CEITEC IPM, Zizkova 22, Prague, Czech Republic

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2016年 / 86卷

关键词：

Small punch test; Finite element method; Parametric study; High temperature; Creep; CREEP PROPERTY; IDENTIFICATION; DEFLECTION; SPECIMEN; EVALUATE; DUCTILE;

D O I：

10.1016/j.tafmec.2016.07.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A parametric study of small punch tests on miniaturized discs under constant deflection rate and constant force has been performed to study the influence of various upper die conditions on the test results. A comparison between the experimental results and the simulations by means of the finite element method is presented, under different clamping conditions. Heat resistant steel P22 has been selected for this investigation. The elasto-plastic behaviour of the disc was described by multilinear isotropic hardening. Norton power-law and exponential creep constitutive relationships have been applied in the ANSYS FE model of the SPT arrangement under creep conditions. The investigation confirms relatively small influence of the upper die conditions for both types of small punch tests for the steel under investigation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：117 / 123

页数：7

共 20 条

[1] Identification of ductile damage and fracture parameters from the small punch test using neural networks [J].