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The activities of TC5 include the exchange of expertise in all aspects of impact fracture and high-strain rate material properties, and the development of agreed test methods in these fields, leading to ESIS or International standards. TC5 members work closely on standards issues with Dymat and with the relevant ASTM E08 and E28 committees. New committee members are always welcome.
TC5 has about forty active members. It normally meets for one or two days, twice per year at varied European locations, with around 15 members normally attending, although lately numbers have been reduced. The following meetings were held recently:-
October 2006 – Fraunhofer Institute IWM, Freiburg, Germany
April 2007 - Corus Steel, Rotherham, UK
The next meeting is planned for October/November 2007, with the venue to be finalised.
It has now been agreed that our test procedure on sub-size Charpy V will be added as an annex to the instrumented Charpy method ISO14556, also developed by TC5. The recently-finished pre-cracked Charpy test method has been accepted as work item ISO WD 26843 by ISO TC164 and is making satisfactory progress towards full standard status. TC5 member Enrico Lucon of SCK/CEN Belgium has been very helpful in monitoring progress at ISO committees.
The round-robin on high-rate tensile testing of sheet materials was completed some time ago, and the programme is continuing with comparisons of data analysis techniques. TC5 members were also closely involved in developing the new German standard SEP1230 high-rate test method for sheet steels for the automotive industry, and are following this through with the ISO committee that is currently working on this topic. Hopefully some aspects of our ESIS procedure on dynamic tensile testing P7-00 can also be included.
The work on impact compression is progressing well, with a successful round-robin on aluminium alloys in 2005/06; we are now starting a new round on armco iron.
A number of new work initiatives are planned and under discussion. Several TC5 members attended the successful Dymat conference in Dijon in September 2006, and the chairman continues to serve on the Dymat Governing Board.
The current officers of TC5 are:
- chairman - Hugh MacGillivray, Imperial College London, UK [h.macgill@imperial.ac.uk]
- vice-chairs - Gyongyver Lenkey, Bay Zoltan Institute, Miskolc, Hungary [lenkey@bzlogi.hu] and Uwe Mayer, MPA Stuttgart, Germany [Uwe.Mayer@mpa.uni-stuttgart.de]
- secretary – Celia Watson, RMCS [c.h.watson@cranfield.ac.uk].
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