Fatigue Resistance and Structure

Abstract

Abstract-This paper comments on the eleven papers presented in the "Materials Behaviour" section of the Extension Seminar of I.C.M.3 and reported in Vol. 2, No. 1 of this Journal. It is hoped that this permanent recording of the opinions stated during the Conference will stimulate further discussion as to the directions future work in this field should take. For conciseness, points of detail and specific aspects not related to the "Microstructure-Fatigue Resistance" theme have been omitted.

Fatigue resistance and structure (30 years on)

“…Many colleagues of Keith Miller will recall his habit of landing you with ‘interesting’ challenges. My paper, Fatigue Resistance and Structure , was one of these 1 . It entailed summarizing 11 quite disparate presentations 2–12 made at the Extension Seminar of ICM 3 (Sheffield, 1979), and hopefully, producing something coherent.…”

“…Information on the role of microstructure in fatigue crack growth was available on a piecemeal basis. Evidence of crack stopping, deflecting, acceleration and deceleration existed 1,14 . A personal pipedream at the time, and one more realistic these days, considering the advances in computing and analytical facilities, was the capability of fatigue life prediction from a quantitative knowledge of microstructure and external loading.…”

“…My paper, Fatigue Resistance and Structure, was one of these. 1 It entailed summarizing 11 quite disparate presentations 2-12 made at the Extension Seminar of ICM 3 (Sheffield, 1979), and hopefully, producing something coherent. Although I rarely read my own published work, this present retrospection indicates to me that the outcome was not badothers may or may not concur.…”

“…Evidence of crack stopping, deflecting, acceleration and deceleration existed. 1,14 A personal pipedream at the time, and one more realistic these days, considering the advances in computing and analytical facilities, was the capability of fatigue life prediction from a quantitative knowledge of microstructure and external loading. My shortcomings in mathematics, computing and statistics precluded any participation on my part.…”