Investigation of dynamic-thermal stress intensity factor in functionally-graded plates having an edge crack

Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
View: 128

This Paper With 16 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_TAVA-7-1_006

تاریخ نمایه سازی: 26 فروردین 1402

Abstract:

Functionally graded materials (FGMs) are non-homogeneous materials whose properties gradually vary as a function of coordinates. Recently, due to the possibility of applying FGMs in conditions with severe temperature changes, e.g., nuclear reactors, chemical power plants, and space crafts, the interest in investigations on this type of material has increased considerably. Usually, FGMs are designed to tolerate drastic temperature changes and thermal shocks are mainly associated with thermal stresses. Therefore, the occurrence of thermal fracture in FGMs is probable. Consequently, studying the fracture mechanics of this type of material under extreme thermal shocks and dynamic loads has become crucial. This paper studies the first mode stress intensity factor (SIF) in FGM plates with an edge crack under thermal shock and dynamic loading. The plates consist of Nickel (metal) and Zirconia (ceramic) properties on top and bottom, respectively. The finite element method is employed to perform dynamic thermal analyses of the plates. Having known that variations in the amount of metal and ceramic used in producing an FGM plate can change its behavior, different gradients of material properties are applied for modeling the FGM plates. Then, the effects of the variation of the gradients on the dynamic-thermal SIF under thermal shocks and dynamic loadings are examined. One of the novelties of the present study is modeling the required material properties for thermal analyses (heat transfer coefficient, specific heat, and thermal expansion coefficient) and dynamic analyses (elasticity modulus, Poisson's ratio, and density) as functions, which have been rarely considered simultaneously in the previous studies.

Keywords:

Functionally-Graded Material , Edge Crack , Dynamic-Thermal Stress Intensity Factor , finite element method

Authors

Safa Peyman

Assistant Professor, Department of Structural Engineering, Imam Hossein University, Tehran, Iran

Amir Eskandari

Ph.D. Student, School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • Guo, Li-Cheng, and Naotake Noda. "Fracture mechanics analysis of functionally ...
  • F.Javidrad. Fracture mechanics and its applications in engineering, ۲۰۱۴ ...
  • Parameswaran, V., Shukla, A., ۱۹۹۹. Crack-tip stress fields for dynamic ...
  • Wang, Z.Q., Nakamura, T., ۲۰۰۴. Simulations of crack propagation in ...
  • Rousseau, C-E., and H. V. Tippur. "Evaluation of crack tip ...
  • Martínez-Pañeda, E., and R. Gallego. "Numerical analysis of quasi-static fracture ...
  • Song, Seong Hyeok, and Glaucio H. Paulino. "Dynamic stress intensity ...
  • Peyman S, Ghajar R. The effect of auxiliary fields of ...
  • Aoki S. H., Kishimoto K., Kondo H., Sakata M. Elastodynamic ...
  • Nishioka, T. "Computational dynamic fracture mechanics." International Journal of Fracture ...
  • Ghajar R, Peyman S, Shaghaghi A. Computation of dynamic stress ...
  • Sadowski, T., S. Ataya, and K. Nakonieczny. "Thermal analysis of ...
  • Lim I. L., Johnston I. W., Choi S. K. Comparison ...
  • Enderlein M., Ricoeur A., Kuna M. Comparison of finite element ...
  • Chang-chun W., Peixiang H., Ziran L. Extension of J integral ...
  • Mohammadi, Soheil. Extended finite element method: for fracture analysis of ...
  • Seong Hyeok Song, Dynamic stress intensity factors for homogeneous and ...
  • Rousseau, C-E., and H. V. Tippur. "Influence of elastic gradient ...
  • Sutradhar, Alok, Glaucio H. Paulino, and L. J. Gray. "Transient ...
  • Joshi, Sunil C., and H. W. Ng. "Optimizing functionally graded ...
  • Zamani, Arash, and M. Reza Eslami. "Coupled dynamical thermoelasticity of ...
  • Hosseini-Tehrani, P., M. R. Eslami, and H. R. Daghyani. "Dynamic ...
  • Wang, Bao-Lin, and Yiu-Wing Mai. "On thermal shock behavior of ...
  • Nazari, Mohammad Bagher, and Masoud Mahdizadeh Rokhi. "Evaluation of SIFs ...
  • Zamani, Arash, Richard B. Hetnarski, and M. Reza Eslami. "Second ...
  • Esmati, Vahid, Mohammad B. Nazari, and Masoud Mahdizadeh Rokhi. "Implementation ...
  • نمایش کامل مراجع