Alert: Export Control Check Required
Thank you for requesting a TWI Industrial Members Report.
To meet UK government requirements, your request will undergo an Export Control Check. This process reviews the technical content of the report, identifies the end user, and addresses any concerns.
Please submit your request to CRP@twi.co.uk including your name, member company that you work for and your location. We will contact you regarding the request within 2 working days and any additional information required to complete the necessary checks.
We look forward to receiving your request and processing it through our export control procedure.
Thank you,
TWI CRP Operations Team
This content is only available to Industrial Members, Find out how to become a Member of TWI.
TWI Industrial Member Report Summary 955b/2010
By S Smith and S Maddox
Background
The present Group Sponsored Project (GSP) has two overlapping aims. First, finite element analysis (FEA) of structures is being done to find accurate and robust schemes for calculating the structural stress (SS). Second, the analysis results are being used to redefine the weld fatigue categories of BS 7608 by plotting them in terms of the SS rather than a local nominal stress (SN). The values of SS and SN are the same for some specimen types, so it is assumed that the S-N curve of these specimens might represent the curve achieved when all specimen results are presented in terms of their SS.
The present report contains TWI's draft proposal for revision of BS 7608. Another GSP report issued together with the present report describes the background to some of the content of the draft standard (Smith and Maddox, 2008).
Objective
The objective of the current report is to present TWI proposals for a revised version of BS 7608 based on the findings to date of the GSP.