Dynamic Analysis of Autofrettage under Transient Loading in FG Thick-Walled Cylinder with Work Hardening Behavior Using Numerical Method

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Razi Mousavi S.H.; MAHZOON MOJTABA; KADIVAR M.H.; MOHAMMADI H.

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Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2019 | Volume:9 | Issue:1 Page(s): 27-43

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Title

Dynamic Analysis of Autofrettage under Transient Loading in FG Thick-Walled Cylinder with Work Hardening Behavior Using Numerical Method

Author(s)

Razi Mousavi S.H. | MAHZOON MOJTABA | KADIVAR M.H. | MOHAMMADI H. | Issue Writer Certificate

Keywords

FGMsQ2

AutofrettageQ1

Thick-Walled CylinderQ2

Transient Numerical ModelingQ1

Elasto-Plastic Stress WaveQ1

Abstract

In the present article, a numerical procedure is developed for dynamic analysis of residual stress in the process of Autofrettage under working pressure. The governing dynamical equations are discretized using finite difference method. Toward This end, differential equations are integrated and by employing divergence theorem surface integrals are converted to boundary integrals. Finally, the C/C++ numerical programming is prepared using the explicit Lagrangian formalism. The effect of transient loading and geometry is investigated in the process of Autofrettage on functionally graded cylinders considering elastoplastic stress wave propagation. The residual stress resulting from internal pressure changes structural load bearing capacity of the cylinder. For functionally graded materials whose material properties change continuously, dynamical analysis yield results which are entirely different as compared with their static counterparts due to the change in wave length and acoustic impedance. In the static analysis the dimensionless forms of equations can be developed from the onset, while in the dynamic analysis the physical dimensions gain importance due to inherent properties of the stress waves.

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APA: Copy

Razi Mousavi, S.H., MAHZOON, MOJTABA, KADIVAR, M.H., & MOHAMMADI, H.. (2019). Dynamic Analysis of Autofrettage under Transient Loading in FG Thick-Walled Cylinder with Work Hardening Behavior Using Numerical Method. JOURNAL OF SOLID AND FLUID MECHANICS, 9(1 ), 27-43. SID. https://sid.ir/paper/363978/en

Vancouver: Copy

Razi Mousavi S.H., MAHZOON MOJTABA, KADIVAR M.H., MOHAMMADI H.. Dynamic Analysis of Autofrettage under Transient Loading in FG Thick-Walled Cylinder with Work Hardening Behavior Using Numerical Method. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2019;9(1 ):27-43. Available from: https://sid.ir/paper/363978/en

IEEE: Copy

S.H. Razi Mousavi, MOJTABA MAHZOON, M.H. KADIVAR, and H. MOHAMMADI, “Dynamic Analysis of Autofrettage under Transient Loading in FG Thick-Walled Cylinder with Work Hardening Behavior Using Numerical Method,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 9, no. 1 , pp. 27–43, 2019, [Online]. Available: https://sid.ir/paper/363978/en

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