The theory and practice of modern framed structures : designed for the use of schools, and for engineers in professional practice (1897)
Johnson, J. B. (John Butler), 1850-1902, Bryan, C. W. (Charles Walter), 1863-1927, Turneaure, Frederick Eugene, 1886- · New York : J. Wiley & Sons · leaf 588
rcentage value, there was a gradual change in the character of thefracture from fine silky in f material to 100 per cent granular in the | material. This gradual change isshown by the photograplis in Plate XXXVIII, which indicate how the granular structure first appears at theedge of the holes and… … Thickness of Metal Fig. 451. and medium steel which appear in Tables III and IV. The tests of iron did not, of course, show granularfractures, since the normal structure of iron is not granular, as that of steel is. But it was apparently verydead, and it would be difficult to say which of the two…
