An estimation of stress intensity factor in a clamped SE(T)specimen through numerical simulation and experimental verification: case of FCGR of AISI H11 tool steel

金属学报(英文版), 2012, 25(4): 307-319.

Masood Shah ^1, , Catherine Mabru ^2, , Farhad Rezai-Aria ^3, , Ines Souki ^4, , Riffat Asim Pasha ^5,

1.Mechanical Engineering Department, University of Engineering and Technology, Taxila, Pakistan

2.Department of Mechanics of Structures and Materials, University of Toulouse; INSA, UPS, Mines Albi,ISA; ICA(Institute Clément Ader); DMSM, F-31056 Toulouse, France

3.Research Group of Surfaces, Machining, Materials and Tooling, University of Toulouse; INSA, UPS,Mines Albi, ISAE; ICA(Institute Clément Ader); Campus Jarlard, F-81013 Albi cedex 09, France

4.Research Group of Surfaces, Machining, Materials and Tooling, University of Toulouse; INSA, UPS,Mines Albi, ISAE; ICA(Institute Clément Ader); Campus Jarlard, F-81013 Albi cedex 09, France

5.Mechanical Engineering Department, University of Engineering and Technology, Taxila, Pakistan

An estimation of stress intensity factor in a clamped SE(T)specimen through numerical simulation and experimental verification: case of FCGR of AISI H11 tool steel

Masood Shah ^1, , Catherine Mabru ^2, , Farhad Rezai-Aria ^3, , Ines Souki ^4, , Riffat Asim Pasha ^5,

1.Mechanical Engineering Department, University of Engineering and Technology, Taxila, Pakistan

2.Department of Mechanics of Structures and Materials, University of Toulouse; INSA, UPS, Mines Albi,ISA; ICA(Institute Clément Ader); DMSM, F-31056 Toulouse, France

3.Research Group of Surfaces, Machining, Materials and Tooling, University of Toulouse; INSA, UPS,Mines Albi, ISAE; ICA(Institute Clément Ader); Campus Jarlard, F-81013 Albi cedex 09, France

4.Research Group of Surfaces, Machining, Materials and Tooling, University of Toulouse; INSA, UPS,Mines Albi, ISAE; ICA(Institute Clément Ader); Campus Jarlard, F-81013 Albi cedex 09, France

5.Mechanical Engineering Department, University of Engineering and Technology, Taxila, Pakistan

Keywords： Fatigue crack propagation

A finite element analysis of stress intensity factors (KI) in clamped SE(T)c specimens (dog bone profile) is presented.A J-integral approach is used to calculate the values of stress intensity factors valid for 0.125≤a/W≤0.625.A detailed comparison is made with the work of other researchers on rectangular specimens.Different boundary conditions are explored to best describe the real conditions in the laboratory.A sensitivity study is also presented to explore the effects of variation in specimen position in the grips of the testing machine.Finally the numerically calculated SIF is used to determine an FCGR curve for AISI H11 tool steel on SE(T)c specimens and compared with C(T) specimen of the same material.

参考文献

[1]	R. John;B. Rigling .Effect of height to width ratio on K and CMOD solutions for a single edge cracked geometry with clamped ends[J].Engineering Fracture Mechanics,1998(2):147-156.
[2]	S. Courtin;C. Gardin;G. Bezine .Advantages of the J-integral approach for calculating stress intensity factors when using the commercial finite element software ABAQUS[J].Engineering Fracture Mechanics,2005(14):2174-2185.

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An estimation of stress intensity factor in a clamped SE(T)specimen through numerical simulation and experimental verification: case of FCGR of AISI H11 tool steel

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