Mechanical Behaviour of Alloy 800 Steam Generator Tube With a Circumferential Crack-Like Throughwall Flaw Conferences

abstract

• This paper presents an experimental and numerical study of the mechanical behaviour of Alloy 800 tubes with a circumferential crack-like throughwall flaw. The crack-like throughwall flaw was simulated as a slot fabricated by Electron Discharge Machining (EDM). A digital image correlation (DIC) method is employed to measure the distribution of strain and the deformed EDM slot profile during the tension test. A Finite Element Analysis (FEA) model in ANSYS is then developed to predict the mechanical behaviour of Alloy 800 steam generator (SG) tubing in the tension tests. The FEA model with a verified material stress-strain curve and the calibrated failure criterion is applied to simulate the burst test of SG tubing with a circumferential crack-like throughwall flaw. The maximum allowable size for a circumferential throughwall crack is recommended based on FEA simulations.

authors

• Wang, Congyue
• Duan, Xinjian
• Jain, Mukesh

status

• published 

publication date

• January 1, 2011

has subject area

• Mechanical Engineering & Transports (Science Metrix)

published in

• American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP  Journal

presented at event

• ASME 2011 Pressure Vessels and Piping Conference  Conference

keywords

• 40 Engineering
• 4016 Materials Engineering

Digital Object Identifier (DOI)

• 10.1115/pvp2011-57161

start page

• 93

end page

• 105

volume

• 2