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IV. Researches on the elastic properties and the plastic extension of metals
Author(s) -
W E DALBY
Publication year - 1921
Publication title -
philosophical transactions of the royal society of london series a containing papers of a mathematical or physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9258
pISSN - 0264-3952
DOI - 10.1098/rsta.1921.0004
Subject(s) - extension (predicate logic) , diagram , fracture (geology) , test (biology) , relation (database) , engineering drawing , structural engineering , forensic engineering , materials science , computer science , engineering , mathematics , composite material , geology , programming language , data mining , statistics , paleontology
On March 7, 1912, I described an instrument which gives photographically a load-extension diagram of a metal test piece during the process of stretching it to fracture. On February 13, 1913, I described further experiments with the instrument. A diagram was shown which was taken from a test piece broken in ten seconds. It is safe to say that up to that time no apparatus existed which would give a complete record of the load-extension relation during such a quick break.

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