Numerical support for residual stress measurement by the hole drilling method

Švantner, Michal (2005) Numerical support for residual stress measurement by the hole drilling method. JOURNAL OF COMPUTATIONAL AND APPLIED MECHANICS, 6 (1). pp. 129-143. ISSN 1586-2070

Preview

Text 6-1-Svantner-V6N1.pdf - Published Version Download (1MB) | Preview

Abstract

The hole drilling technique is one of the most frequently used methods of residual stress determination. This technique is based on drilling a small hole in the material. Relieved strain around the hole is measured and the residual stress is then evaluated using calibration coefficients. Possibilities of calibration coefficient computation using finite element method (FEM) are presented in this paper. Analyses of computation parameters influence are performed: the solver used and its parameters, finite element types, model type, mesh density and sample shape. An efficient method using a script-based model for the calibration function determination is introduced.

Actions (login required)

Edit Item