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Memorial Tributes Volume 24 (2022) / Chapter Skim
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JOHN F. KNOTT
Pages 222-227

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From page 223...
... RITCHIE AND JAMES R RICE J OHN FREDERICK KNOTT, a leading light in understanding of the mechanics and mechanisms of fracture, with particular application to gas turbine engines and nuclear power, died ­October 5, 2017, at the age of 78.
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From page 224...
... Smith's group was focused on failure mechanisms relevant to the power generation industry, allowing John to continue his work on notched-bar mechanics pertinent to brittle cleavage fracture in steels. In 1967 he left CERL to begin his academic career as a lecturer in the Metallurgy Department at Cambridge University and as Goldsmith's Fellow at Churchill College (he was vice master of the college in 1988–90)
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From page 225...
... His principal contributions to the field of materials engineering can be essentially summed up as bringing m ­ aterials science into continuum fracture mechanics, providing a ­metallurgical-mechanistic counterpart to the applied m ­ echanics breakthroughs of George Irwin, John Hutchinson, and others in the early development of fracture mechanics, and establishing the micromechanistic or local approach to modeling fracture. By integrating a microscopic understanding of mechanisms with a continuum mechanics description of crack-driving forces, John was a pioneer in defining how materials scien tists study fracture today, and he was a major proponent of the application of this discipline to help solve problems in the nuclear energy and aircraft gas turbine engine industries.
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From page 226...
... He was the "life and soul" of so many conferences, banquets, and after-hours discussions, yet he was always on cue early the next morning to fully engage in whatever presentations or technical discussions he was scheduled to participate in. He was an avid writer of poems and limericks, which he would gleefully deliver to honor some colleague at a formal event or just to delight whoever would listen.
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