Open AccessSimulation Effect of Crack Depth and Crack Location on Cylindrical Pressure Vessel
Author(s) -
Dodik Kusmartono,
Gunawan Nugroho
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1351/1/012082
Subject(s) - knuckle , shell (structure) , crack tip opening displacement , finite element method , structural engineering , materials science , crack closure , stress intensity factor , stress (linguistics) , ultimate tensile strength , aspect ratio (aeronautics) , pressure vessel , mechanics , geometry , fracture mechanics , composite material , mathematics , engineering , physics , linguistics , philosophy
In the present study the problem of calculation of the stress intensity factors (SIF) of semi-elliptical cracks located in the shell and knuckle area of a pressure vessel is numerically solved by 3D Extended finite element method (XEFM) analysis. Crack also will be varied based on crack depth at constant elliptical ratio. The modeling details of the sub-structuring methodology, employed in the analysis, are discussed and the numerical approach is proven to be very efficient for the SIF calculation of pressure vessel semi-elliptical crack. Result of study show that crack with the same geometry, crack located in the shell has more tendency to propagate compare to crack located in the knuckle area. This phenomenon is due to stress at shell is dominated with tensile stress while in the knuckle area, stress is dominated with compressive stress.