Reliable Residual Stress Analysis for Thin Metal Sheets by Incremental Hole Drilling

2018 ◽  
Vol 7 (4) ◽  
pp. 20170111 ◽  
Author(s):  
Nicola Simon ◽  
Tobias Mrotzek ◽  
Jens Gibmeier
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
Thin Metal ◽  
Hole Drilling ◽  
Incremental Hole Drilling ◽  
Metal Sheets ◽  
Residual Stress Analysis

scholarly journals Incremental Hole-Drilling Method Vs. Thin Components: A Simple Correction Approach

2014 ◽  
Vol 996 ◽  
pp. 283-288 ◽  
Author(s):  
Esther Held ◽  
Simone Schuster ◽  
Jens Gibmeier
Keyword(s):  
Residual Stress ◽  
Thin Metal ◽  
Hole Drilling ◽  
Depth Profiles ◽  
Hole Drilling Method ◽  
Incremental Hole Drilling ◽  
Metal Sheets ◽  
Drilling Method ◽  
Measured Strain ◽  
The Impact

The incremental hole-drilling method is a widely used technique to determine residual stress depth profiles in technical components. Its application is limited in respect to the components geometry, for instance the components thickness. In this paper, a direct correction of the measured strain relaxations is proposed to consider the impact of deviant geometries, here the component thickness, on the residual stress evaluation that moreover, allows the application of commercially available evaluation software. The herein proposed approach is based on finite element simulation of the incremental hole drilling. The simulated strain relaxations for thin metal sheets are evaluated with an algorithm as used in commercially available evaluation software (i) for uncorrected data as well as (ii) for strain data corrected by the proposed correction procedure. It is shown that the correction approach leads to a significant improvement of the measurement accuracy. Further, by means of the approach residual stress depth profiles in thin metal sheets can be as usual determined using commercial evaluation software for the incremental hole-drilling method regardless of the algorithm used, i.e. differential or integral.

scholarly journals Comparison of Residual Stress Measurements Conducted by X-ray Stress Analysis and Incremental Hole Drilling Method

2020 ◽  
Vol 29 (6) ◽  
pp. 1218-1228
Author(s):  
K. Bobzin ◽  
W. Wietheger ◽  
M. A. Knoch ◽  
A. Schacht ◽  
U. Reisgen ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Analysis ◽  
Hole Drilling ◽  
X Ray ◽  
Stress Measurements ◽  
Hole Drilling Method ◽  
Incremental Hole Drilling ◽  
Drilling Method
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