Details
| Original language | English |
|---|---|
| Pages (from-to) | 88-93 |
| Number of pages | 6 |
| Journal | Procedia Engineering |
| Volume | 19 |
| Publication status | Published - 26 Nov 2011 |
| Event | 1st CIRP Conference on Surface Integrity, CSI 2012 - Bremen, Germany Duration: 30 Jan 2012 → 1 Feb 2012 |
Abstract
In order to qualify residual stress relaxation as an indicator of mechanical overloading of machined parts, an individually designed residual stress profile has to be allocated. Even though numerous investigations have been carried out in the past, residual stress profiles cannot be predicted to a satisfactory degree. For this reason, essential studies on the reproducibility of residual stress profiles for several external cylindrical turning parameters are conducted and it is demonstrated that identical residual stress profiles can be induced successfully. Subsequently, specimens with defined residual stress profiles are loaded in bending tests with various numbers of test cycles. The amount of residual stress relaxation in the specimen's surface layer is measured to determine the influence of theapplied load on the stress relaxation. By applying single tensile and compressive loads below and above thematerial's yield and ultimate strength, the stress relaxation can be evaluated in detail.
Keywords
- Fatigue, Residual stress, Surface integrity
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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In: Procedia Engineering, Vol. 19, 26.11.2011, p. 88-93.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Elementary studies on the inducement and relaxation of residual stress
AU - Denkena, B.
AU - Köhler, J.
AU - Breidenstein, B.
AU - Mörke, T.
N1 - Funding information: The results presented in this paper were obtained within the Collaborative Research Centre SFB 653. The authors would like to thank the German Research Foundation (DFG) for the provision of funding. We also acknowledge that the fatigue experiments were carried out at the Institute of Plant Engineering and Fatigue Analysis of the Clausthal U niversity of Technology. Furthermore the Institute of Material Science of the Leibniz Universität Hannover supported our experiments by conducting tensile tests.
PY - 2011/11/26
Y1 - 2011/11/26
N2 - In order to qualify residual stress relaxation as an indicator of mechanical overloading of machined parts, an individually designed residual stress profile has to be allocated. Even though numerous investigations have been carried out in the past, residual stress profiles cannot be predicted to a satisfactory degree. For this reason, essential studies on the reproducibility of residual stress profiles for several external cylindrical turning parameters are conducted and it is demonstrated that identical residual stress profiles can be induced successfully. Subsequently, specimens with defined residual stress profiles are loaded in bending tests with various numbers of test cycles. The amount of residual stress relaxation in the specimen's surface layer is measured to determine the influence of theapplied load on the stress relaxation. By applying single tensile and compressive loads below and above thematerial's yield and ultimate strength, the stress relaxation can be evaluated in detail.
AB - In order to qualify residual stress relaxation as an indicator of mechanical overloading of machined parts, an individually designed residual stress profile has to be allocated. Even though numerous investigations have been carried out in the past, residual stress profiles cannot be predicted to a satisfactory degree. For this reason, essential studies on the reproducibility of residual stress profiles for several external cylindrical turning parameters are conducted and it is demonstrated that identical residual stress profiles can be induced successfully. Subsequently, specimens with defined residual stress profiles are loaded in bending tests with various numbers of test cycles. The amount of residual stress relaxation in the specimen's surface layer is measured to determine the influence of theapplied load on the stress relaxation. By applying single tensile and compressive loads below and above thematerial's yield and ultimate strength, the stress relaxation can be evaluated in detail.
KW - Fatigue
KW - Residual stress
KW - Surface integrity
UR - http://www.scopus.com/inward/record.url?scp=83755207421&partnerID=8YFLogxK
U2 - 10.1016/j.proeng.2011.11.084
DO - 10.1016/j.proeng.2011.11.084
M3 - Conference article
AN - SCOPUS:83755207421
VL - 19
SP - 88
EP - 93
JO - Procedia Engineering
JF - Procedia Engineering
SN - 1877-7058
T2 - 1st CIRP Conference on Surface Integrity, CSI 2012
Y2 - 30 January 2012 through 1 February 2012
ER -