Projects per year
Abstract
This study investigates an effect of autofrettage on the fatigue and corrosion fatigue life of high pressure parts made from low carbon structural steel. To estimate the beneficial effect of autofrettage application, an extensive experimental program and advanced theoretical modelling are conducted and analyzed in this study. Accurate calculation of compressive residual stresses is achieved by application of a cyclic plasticity model which can precisely simulate a cyclic plasticity response of material. In terms of a fatigue life prediction methodology, a non-local stress based approach with a modified critical distance theory is used for prediction of the crack initiation stage providing conservative fatigue assessment. Because of the fact that the crack propagation stage can take a considerable part of the total life for autofrettaged parts, more accurate fatigue life calculation is performed by the use of a fracture mechanics approach. The total fatigue life time of autofrettaged parts is then calculated as a sum of the crack initiation and propagation stages.
Original language | English |
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Title of host publication | ASME 2018 Pressure Vessels and Piping Conference |
Subtitle of host publication | Volume 5: High-Pressure Technology; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD) |
Place of Publication | New York |
Number of pages | 6 |
DOIs | |
Publication status | Published - 20 Jul 2018 |
Event | ASME 2018 Pressure Vessels and Piping Conference - Prague, Czech Republic Duration: 15 Jul 2018 → 20 Jul 2018 |
Conference
Conference | ASME 2018 Pressure Vessels and Piping Conference |
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Abbreviated title | PVP 2018 |
Country | Czech Republic |
City | Prague |
Period | 15/07/18 → 20/07/18 |
Keywords
- autofrettage
- fatigue
- corrosion fatigue life
- high pressure parts
Fingerprint Dive into the research topics of 'Fatigue and corrosion fatigue life assessment with application to autofrettaged parts'. Together they form a unique fingerprint.
Projects
- 1 Finished
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APESA (H2020 MSCA EID)
MacKenzie, D., Comlekci, T., Dempster, W., Galloway, A., Stack, M., Stickland, M. & Thomason, J.
European Commission - Horizon 2020
1/06/15 → 31/05/19
Project: Research
Research Output
- 2 Article
-
New formulation of nonlinear kinematic hardening model, part I: a Dirac delta function approach
Okorokov, V., Gorash, Y., MacKenzie, D. & van Rijswick, R., 30 Nov 2019, In : International Journal of Plasticity. 122, p. 89-114 26 p.Research output: Contribution to journal › Article
Open AccessFile1 Citation (Scopus)10 Downloads (Pure) -
New formulation of nonlinear kinematic hardening model, part II: cyclic hardening/softening and ratcheting
Okorokov, V., Gorash, Y., MacKenzie, D. & van Rijswick, R., 30 Nov 2019, In : International Journal of Plasticity. 122, p. 244-257 14 p.Research output: Contribution to journal › Article
Open AccessFile1 Citation (Scopus)10 Downloads (Pure)