Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0013-7944(01)00077-7
Title: Measurement of fracture initiation toughness and crack resistance in instrumented Charpy impact testing
Authors: Tronskar, J.P.
Mannan, M.A. 
Lai, M.O. 
Keywords: Displacement measurement
Dynamic crack resistance
Dynamic initiation fracture toughness
Instrumented impact testing
Steel
Issue Date: 11-Feb-2002
Citation: Tronskar, J.P., Mannan, M.A., Lai, M.O. (2002-02-11). Measurement of fracture initiation toughness and crack resistance in instrumented Charpy impact testing. Engineering Fracture Mechanics 69 (3) : 321-338. ScholarBank@NUS Repository. https://doi.org/10.1016/S0013-7944(01)00077-7
Abstract: A new method has been developed involving direct measurement of the load-line displacement during instrumented Charpy testing. The method uses a laser interferometer to measure displacement in addition to the load-line displacement derived from the load signal. Tests were conducted using fatigue precracked and V-notched test pieces in the temperature range +23°C to -80°C on a conventional ship grade steel, a pressure vessel steel and two welded joints. Good correlation was found between the J0.2 initiation fracture toughness determined by the multi-specimen method and the Ji fracture toughness determined from single specimens using the new method to detect ductile fracture initiation. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Engineering Fracture Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/85376
ISSN: 00137944
DOI: 10.1016/S0013-7944(01)00077-7
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