This paper deals with the influence of local plastic deformation on the fatigue strength of holed plates manufactured with an innovative medium-carbon micro-alloyed steel with high silicon content (hi-Si MCM). Local deformation around the hole is achieved by means of an interference fitted pin. The effect was investigated both experimentally and numerically. Microstructural characterization, hardness, and tensile tests were carried out first. Tension–tension fatigue tests were performed under two different conditions: open-hole (OH) specimens and specimens with a press fitted pin with 0.6% nominal specific interference. A 2D elastic–plastic finite element analyses (FEAs) investigation was done as well, in order to analyze the stress field in the vicinity of the hole. The stress history and distribution in the neighborhood of the hole indicate a significant reduction of the stress amplitude produced by the external loading (remote stress) when a residual stress field is generated by the pin insertion. In fact, experimental stress-life (SN) curves pointed out increased fatigue strength of the interference fit specimens, compared with the OH ones. Finally, scanning electron microscope (SEM) analyses of the fractured fatigue specimens were carried out, in order to investigate the mechanisms of failure and to relate them to the peculiar microstructural features that characterize this innovative steel.
Skip Nav Destination
Article navigation
February 2016
Research-Article
Fatigue Life Improvement of Holed Plates Made of an Innovative Medium C Micro-Alloyed Steel by Local Plastic Deformation
Dario Croccolo,
Dario Croccolo
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Search for other works by this author on:
Massimiliano De Agostinis,
Massimiliano De Agostinis
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
e-mail: m.deagostinis@unibo.it
University of Bologna,
Bologna 40136, Italy
e-mail: m.deagostinis@unibo.it
Search for other works by this author on:
Giorgio Olmi,
Giorgio Olmi
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Search for other works by this author on:
Lorella Ceschini,
Lorella Ceschini
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Search for other works by this author on:
Alessandro Morri
Alessandro Morri
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Search for other works by this author on:
Dario Croccolo
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Massimiliano De Agostinis
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
e-mail: m.deagostinis@unibo.it
University of Bologna,
Bologna 40136, Italy
e-mail: m.deagostinis@unibo.it
Giorgio Olmi
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Lorella Ceschini
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
Alessandro Morri
DIN, Department of Industrial Engineering,
University of Bologna,
Bologna 40136, Italy
University of Bologna,
Bologna 40136, Italy
1Corresponding author.
Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received December 1, 2014; final manuscript received March 31, 2015; published online September 9, 2015. Assoc. Editor: Donggang Yao.
J. Manuf. Sci. Eng. Feb 2016, 138(2): 021005 (11 pages)
Published Online: September 9, 2015
Article history
Received:
December 1, 2014
Revision Received:
March 31, 2015
Citation
Croccolo, D., De Agostinis, M., Olmi, G., Ceschini, L., and Morri, A. (September 9, 2015). "Fatigue Life Improvement of Holed Plates Made of an Innovative Medium C Micro-Alloyed Steel by Local Plastic Deformation." ASME. J. Manuf. Sci. Eng. February 2016; 138(2): 021005. https://doi.org/10.1115/1.4030378
Download citation file:
Get Email Alerts
Cited By
Applying In-situ Ionic Crosslinking in Bioprinting Using Algae Cells
J. Manuf. Sci. Eng
A Digital Twin–Based Environment-Adaptive Assignment Method for Human–Robot Collaboration
J. Manuf. Sci. Eng (March 2024)
Tilting Behaviors of Metal Microjet in Laser-Induced Forward Transfer
J. Manuf. Sci. Eng (March 2024)
A Review of Prospects and Opportunities in Disassembly With Human–Robot Collaboration
J. Manuf. Sci. Eng (February 2024)
Related Articles
Experimental Study on Fatigue Strength of Small-Diameter Socket-Welded Pipe Joints
J. Pressure Vessel Technol (May,1998)
A 3D Finite Element Study of Fatigue Life Dispersion in Rolling Line Contacts
J. Tribol (October,2011)
Evaluation of the High Cycle Fatigue Properties of Double-Side-Welded AISI 321 Plates Using GTAW Process for Pressure Vessels
J. Pressure Vessel Technol (April,2022)
Seam Welding of Aluminum Sheet Using Ultrasonic Additive Manufacturing System
J. Manuf. Sci. Eng (January,2017)
Related Proceedings Papers
Related Chapters
Transverse Free Vibration Analysis of Hybrid SPR Steel Joints
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)
Concluding Remarks and Future Work
Ultrasonic Welding of Lithium-Ion Batteries
Understanding the Problem
Design and Application of the Worm Gear