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
来源期刊:Acta Metallurgica Sinica2012年第4期
论文作者:Masood Shah Catherine Mabru Farhad Rezai-Aria Ines Souki Riffat Asim Pasha
文章页码:307 - 319
摘 要:A finite element analysis of stress intensity factors(K I) 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.
Masood Shah1,Catherine Mabru2,Farhad Rezai-Aria3,Ines Souki3,Riffat Asim Pasha1
1. Mechanical Engineering Department,University of Engineering and Technology,Taxila,Pakistan2. Department of Mechanics of Structures and Materials,University of Toulouse3. Research Group of Surfaces,Machining,Materials and Tooling,University of Toulouse
摘 要:A finite element analysis of stress intensity factors(K I) 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.
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