Numerical investigation of the crack growth of Inconel ۷۱۸ under periodic loading

سال انتشار: 1403
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 162

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شناسه ملی سند علمی:

ISME32_009

تاریخ نمایه سازی: 15 تیر 1403

چکیده مقاله:

Inconel ۷۱۸ is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy is also able to display exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This research simulates the fatigue crack propagation process of Inconel۷۱۸ alloy unilateral notched standard CT specimen at room temperature by ABAQUS ۲۰۱۹ software. Finite Element method (FEM) analysis has been proved to be an efficient and reliable simulation tool in order to assess the damage of plate structures under fatigue. The ABAQUS is used for numerical simulation. The extended finite element method (XFEM) is used to output the PHILSM function and the PSILSM function in the calculation process for describing the crack state. The direct cyclic Low-Cycle Fatigue (LCF) approach is used in order to address the issues related to common modelling of fracture. The fatigue response is implemented by the well-known Paris law.

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نویسندگان

Mohammad Movaffagh

Science and Research Islamic Azad University, Tehran, Iran

S.Mohammad Reza Khalili

K, N Toosi University of Technology, Tehran, Iran