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More than 600 engineers, scientists, designers and medical doctors from 36 countries will be meeting on the University of Waterâ€" loo campus, June 19â€"24, at the Fourth International Conference on Fracture. Those attending are inâ€" terested in the scientific study as to why and how things break, be they nuâ€" clear pressure vessels, turâ€" bines, ships, aircraft, roof girders, _ human _ bones., welds, plastics, ceramics... or what have you. There will even be one paper dealing with how ice fractures ... as related to the forming of ice bergs in our northern waters. Still another will deal with stresses in relation to plasâ€" tic implants in the body to replace human bone (for example, hip prostheses). The main focus of the paâ€" pers is, however, on high strength alloys. ‘‘Fracture problems have become more crucial in recent years," says Dr. David Taplin, UW mechâ€" anical engineering profesâ€" sor and chairman of the organizing committee. ‘‘For example. a fracture in a pressure vessel in a nuclear _ power _ station could have very serious implications. _ The same could be said with respect to huge super tankers, northern pipelines, jumbo on the North American continent. Previous meetâ€" ings were in Japan, Engâ€" land and West Germany:; the conferences are held every four years. Altogether, 370 papers will be presented. The Proâ€" ceedings are being publishâ€" ed under the imprint of the University _ of _ Waterloo Press, the first major inâ€" ternational publication bearing this imprint. 4 The conference is being organized by the Internaâ€" tional Congress on Fracâ€" ture and it will be the first ICF conference ever held Fracture conference planned at UW June 19 â€" consumer information Ham should be cut into 1 " squares Thread on skewers alternately with quartered sweet potatoes and pineapple, both dipped in melted butter Brown on GAS barbecue on HIGH setting Turn frequently and brush on remaining butter Sprinkle on brown sugar until whole kabob takes on an appetizing glaze For additional barbecue tips and recipes. contact the Consumer Services Representative at Union Gas 2 ham steaks 3/4" thick 6 cooked sweet potatoes 1 large can pineapple chunks 1/4 cup brown sugar 1/2 cup melted butter Kabobs...for tasty appetizers or a complete meal. Line up the makings and help yourself to a treat on a skewer! WUNHION GAS toll free 1â€"800â€"265â€"8808 HAM AND SWEETS ‘"The challenge is to imâ€" prove resistance to crack propagation,"" Dr. Taplin says. Fortunately, Dr. Taplin feels, scientists do underâ€" stand how it is things break.. and how to design them so they won‘t break... better than ever before. Use of the scanning electron microscope and servoâ€"hyâ€" draulic testing machines enables them to find out more about fracture at the atomic, microscopic, maâ€" croscopic, theoretical and experimental _ levels. _ In principle, the experts say, all fracture problems are related, whether the maâ€" terial is ceramic, or a new alloy, or human bone. ‘"The fact is, virtually anything that an engineer designs may break,"" points out Dr. Taplin. ‘"Yet until now, fracture has not been a core part of the engineerâ€" ing curriculum. However, society isn‘t going to let us build things now unless they are much safer ...and so it is increasingly imporâ€" tant that fracture be better understood by all engineers and designers." Because of this the conâ€" ference will include a sesâ€" sion on "Fracture, Politics and Society," dealing with the mutual concerns of fracture experts and poliâ€" ticians. One of the distinâ€" guished speakers at this session will be Sir Alan Cottrell, viceâ€"chancellor of Cambridge University and previously an adviser on Canada‘s CANDU reactor program. aircraft, and so on. It‘s not too much to say that governments could _ rise and fall because of the soâ€" clal implications of . some fracture problems." There will also be a sesâ€" sion onâ€" ‘"Fracture Educaâ€" tion"‘ which will deal with the role of fracture studies in the education of scienâ€" tists, engineers and techâ€" nologists. *‘Fracture problems are never completely ,eliminâ€" ated," says Dr. Richard Smith, who is also involved in organizing the conferâ€" dvanced audio stantly being pushed to new limits. You are always looking for ways to make theém last longer or perâ€" form ~better, along with more realistic ways . of assessing â€" their fracture Waterioo Chronicle, Wednesday, April 20, 1977 â€" Page 19 ~â€" terials are always coming along that require new reâ€" search V NP VAMVN®