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Details of Grant 

EPSRC Reference: GR/N10714/01
Title: ROLE OF LOADING HISTORY IN THE FRACTURE ASSESSMENT OF STRUCTURES
Principal Investigator: Smith, Professor D
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Babcock International Group Plc (UK) British Energy Health and Safety Executive
Rolls-Royce Plc TWI Ltd
Department: Mechanical Engineering
Organisation: University of Bristol
Scheme: Standard Research (Pre-FEC)
Starts: 13 November 2000 Ends: 12 November 2003 Value (£): 201,004
EPSRC Research Topic Classifications:
Eng. Dynamics & Tribology
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine Energy
No relevance to Underpinning Sectors
Related Grants:
GR/N10752/01
Panel History:  
Summary on Grant Application Form
Prior loading such as proof loading, post weld heat treatment, material ageing and subsequent loading history can have a significant influence on material behaviour. In many structures, prior loading will also have a strong influence on both the residual stresses and fracture toughness. However, it is not known whether these effects are exclusive or additive, particularly in the context of a probabilistic analysis. Quantifying these effects of prior loading will provide improved confidence in determining the continued availability of the structure. Also the use of a probabilistic analysis provides quantitative information about the likelihood of the onset of failure taking into account uncertainties in input data. This joint project between Bristol University and TWI aims to provide a model to quantify the effects with some experimental verification. The project will also to conduct case studies in order to develop general guidelines for structural integrity assessments.
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Further Information:  
Organisation Website: http://www.bris.ac.uk