Finite Element Analysis of Thermal Stress Intensity Factors for Cracked Bimaterial System Under Convective Cooling

Authors

  • Arafathali Shaikdawood Basheerali Department of Mechanical Engineering, International Islamic University Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia
  • Meftah Hrairi Department of Mechanical Engineering, International Islamic University Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia
  • Meftah Hrairi Department of Mechanical Engineering, International Islamic University Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia
  • Jaffar Syed Mohamed Ali Department of Mechanical Engineering, International Islamic University Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia

Keywords:

bi-material systems, crack tip, finite element analysis, stress intensity factor, thermal stress

Abstract

Edge-crack bi material systems subjected to convective cooling is considered. The medium is assumed to be insulated on one surface and exposed to sudden convective cooling on another surface containing the edge crack. Superposition and uncoupled quasi-static thermo elasticity principles are adopted to find temperature and thermal stress distribution. The ANSYS results for the stress intensity factors of an edge crack are calculated and presented as a function of time, crack length, and thickness ratio for two different bimaterial systems, namely a stainless steel layer welded on ferritic steel and a ceramic layer coating on ferric steel.

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Published

2021-07-05

Issue

Vol. 10 No. 2: CFD Letters,December(2018)

Section

Articles
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