Fatigue Failure of Structural Steel – Analysis Using Fracture Mechanics
Fatigue is the major threat in service of steel structure
subjected to fluctuating loads. With the additional effect of corrosion
and presence of weld joints the fatigue failure may become more
critical in structural steel. One of the apt examples of such structural
is the sailing ship. This is experiencing a constant stress due to
floating and a pulsating bending load due to the waves. This paper
describes an attempt to verify theory of fatigue in fracture mechanics
approach with experimentation to determine the constants of crack
growth curve. For this, specimen is prepared from the ship building
steel and it is subjected to a pulsating bending load with a known
defect. Fatigue crack and its nature is observed in this experiment.
Application of fracture mechanics approach in fatigue with a simple
practical experiment is conducted and constants of crack growth
equation are investigated.
[1] C E Inglis, "Stress in a plate due to the presence of cracks and sharp
corners," Trans. Institution of Naval Architects 55,219-242 (1913)
[2] A.A.Griffith, "The phenomena of rupture and flow in solids," Linear
Networks and Systems (Book style). Belmont, CA: Wadsworth,
1993, pp. 123-135.
[3] Paris and Erdogan, 1963. "A critical Analysis of Crack Propagation
Laws", Journ. Basic, Engg. pp., 528-534.
[4] Jaap Schijve, 2001, "Fatigue of Structures and Materials", Kluwer
Academic Publishers, Printed in the Netherlands
[5] Alexander Blake, 1996. "Practical Fracture Mechanics in Design",
Marcel Dekker, Inc. USA.
[6] David Broek, 1986. "Elementary Engineering Fracture Mechanics",
Chapter 2, 10, Kluwer academic Publishers, Dordrecht.
[7] G G Chell, Edited 1979. "Developments in Fracture Mechanics",
Vol.1&11, Applied Science Publishers Ltd., London.
[8] Compendium UK 2006-93 Faulty of engineering science and
technology Ntnu Trondheim Norwegian Univeristy of science and
technology
[9] Short Term Course, "Fatigue Design and analysis of Ships and
Offshore structures" Ocean Engg. Dept., IIT Madras. Feb. 2007
[1] C E Inglis, "Stress in a plate due to the presence of cracks and sharp
corners," Trans. Institution of Naval Architects 55,219-242 (1913)
[2] A.A.Griffith, "The phenomena of rupture and flow in solids," Linear
Networks and Systems (Book style). Belmont, CA: Wadsworth,
1993, pp. 123-135.
[3] Paris and Erdogan, 1963. "A critical Analysis of Crack Propagation
Laws", Journ. Basic, Engg. pp., 528-534.
[4] Jaap Schijve, 2001, "Fatigue of Structures and Materials", Kluwer
Academic Publishers, Printed in the Netherlands
[5] Alexander Blake, 1996. "Practical Fracture Mechanics in Design",
Marcel Dekker, Inc. USA.
[6] David Broek, 1986. "Elementary Engineering Fracture Mechanics",
Chapter 2, 10, Kluwer academic Publishers, Dordrecht.
[7] G G Chell, Edited 1979. "Developments in Fracture Mechanics",
Vol.1&11, Applied Science Publishers Ltd., London.
[8] Compendium UK 2006-93 Faulty of engineering science and
technology Ntnu Trondheim Norwegian Univeristy of science and
technology
[9] Short Term Course, "Fatigue Design and analysis of Ships and
Offshore structures" Ocean Engg. Dept., IIT Madras. Feb. 2007
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:51496", author = "Shine U P and EMS Nair", title = "Fatigue Failure of Structural Steel – Analysis Using Fracture Mechanics", abstract = "Fatigue is the major threat in service of steel structure
subjected to fluctuating loads. With the additional effect of corrosion
and presence of weld joints the fatigue failure may become more
critical in structural steel. One of the apt examples of such structural
is the sailing ship. This is experiencing a constant stress due to
floating and a pulsating bending load due to the waves. This paper
describes an attempt to verify theory of fatigue in fracture mechanics
approach with experimentation to determine the constants of crack
growth curve. For this, specimen is prepared from the ship building
steel and it is subjected to a pulsating bending load with a known
defect. Fatigue crack and its nature is observed in this experiment.
Application of fracture mechanics approach in fatigue with a simple
practical experiment is conducted and constants of crack growth
equation are investigated.", keywords = "fatigue, fracture mechanics, fatigue testing machine", volume = "2", number = "10", pages = "1105-4", }