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Experimental Investigation of Crack for Tensile Loading Condition by Using Hole Drilling Method

  • Hanumant P. Borate
  • Pradeep Jadhav
  • Sachin M. Khomane
  • Sandeep S. Wangikar
  • Uttam L. Anuse
Conference paper

Abstract

The most common method for preventing cracks from propagating is to make a drill stop or crack arrest hole (CAH) at a distance from the crack tip. The objective of drilling a hole is to reduce the stress concentration at the crack tip. This repair method is called a stop drilling procedure. In this paper, the following situations are studied: (i) changing the ratio of crack length (a) to width (w) of specimen for different arrangements, (ii) a single hole with fixed diameter drilled at a varying distance (r) from the crack tip in the crack direction and (iii) drilling a hole with varying diameter (d) at a distance (r) from crack tip in the crack direction. The aim of present work is to obtain an efficient position and diameter of stop drill to reduce the stress concentration factor at the crack tip.

Keywords

Crack arrest hole (CAH) Crack tip Stress concentration 

References

  1. 1.
    Babcock SE, Cai XY, Larbalestier DC (1994) A TEM-EELS study of hole concentrations near strongly and weakly coupled grain boundaries in electromagnetically characterized YBa2Cu3O7-δ bicrystals. Physica 227:183–196CrossRefGoogle Scholar
  2. 2.
    Domazet Z (1996) Comparison of fatigue crack retardation methods. Eng Fail Anal 3(2):137–147CrossRefGoogle Scholar
  3. 3.
    Pedersen P (2004) Design study of hole positions and hole shapes for crack tip stress releasing. Struct Multidisc Optim 28:243–251CrossRefGoogle Scholar
  4. 4.
    Cheng XH, Renman G, Dunne R (2006) Inspection and repair of the deteriorated Rt. 72 Manahawkin Bay Bridge 86–125Google Scholar
  5. 5.
    Murdani A, Makabe C, Irei Y (2008) Stress concentration at stop-drilled holes and additional holes. Eng Fail Anal 15:810–819CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Hanumant P. Borate
    • 1
  • Pradeep Jadhav
    • 2
  • Sachin M. Khomane
    • 2
    • 3
  • Sandeep S. Wangikar
    • 3
  • Uttam L. Anuse
    • 3
  1. 1.Department of Mechanical EngineeringVidya Pratishthan’s Kamalnayan Bajaj Institute of Engineering & TechnologyBaramatiIndia
  2. 2.Department of Mechanical EngineeringBharati Vidyapeeth University, College of EngineeringPuneIndia
  3. 3.Department of Mechanical EngineeringSVERI’s College of EngineeringPandharpurIndia

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