کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4952961 1364505 2017 9 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Correlation of fracture parameters during onset of crack in middle tension specimen
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
پیش نمایش صفحه اول مقاله
Correlation of fracture parameters during onset of crack in middle tension specimen
چکیده انگلیسی


- Fracture analysis carried out on 4140 steel middle tension specimen using FEA.
- Correlation of fracture parameters with loads and crack sizes was carried out.
- The ASTM standard was employed to validate FEA results and obtained accurate results.

The present study addresses the implementation of finite element analysis and the prediction of fracture parameters in a middle tension (MT) specimen that was fabricated using AISI 4140 steel. The correlation of fracture parameters with external loads and crack sizes was investigated. A Finite Element code was developed to simulate the fracture model. The contour integral method was applied in the calculation of stress intensity factor and J-integral in the cracked specimen. The ASTM standard empirical formula was used to calculate the stress intensity factor (SIF) and the numerical predictions were validated. A standard laboratory experiment was also carried out using the MT specimen to calculate the crack growth rate in this specific material. The SIF values were almost linear with external load but it was decreasing as the crack size increases. The crack requires minimum load for crack propagation as the crack size increases. Similarly the J-integral was accelerated with increase in crack size.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Design and Engineering - Volume 4, Issue 3, July 2017, Pages 169-177
نویسندگان
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