Minutes of proceedings of the Institution of Civil Engineers Volume 104, pt. 2
Автор:Institution of Civil Engineers Год: 2012 Издание: [не указанo] Страниц: 170 ISBN: 1130840808 This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 Excerpt: ...up to between 280 to 330 and then fall. For the "Union" material (III) the minimum value of $„ is attained only at 300, and the curve afterwards rises, a maximum occurring at 400. Similar differences are also to be observed in the character of the curves for 8t. The following Table, compiled from the mean observed values, gives the ratios in per cent. of 8, to 3, for various temperatures:--In Fig. 8 the stress diagrams for material of quality II are reproduced. The limit of stretch, in each diagram, is denoted by Stress Diagrams For Quality II And Temperatures--20 To 600. S, the point of maximum stress by B, the point of fracture by Z. At 400 the material has assumed the character of the soft metals, zinc for instance. The irregularities at the points a and b occurred when the...
