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. 1911 Excerpt: ...X f" plates = 22.5 sq. ins. Four 3i"X3i"X 11-pound angles =13 "" Total =35-5 sq. ins. This is a tentative composition of section which must be tested by eq. (3) to determine whether it is as nearly accurate as it should be. In order to do this, the moments of inertia of the section, as indicated, must be taken about ...
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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. 1911 Excerpt: ...X f" plates = 22.5 sq. ins. Four 3i"X3i"X 11-pound angles =13 "" Total =35-5 sq. ins. This is a tentative composition of section which must be tested by eq. (3) to determine whether it is as nearly accurate as it should be. In order to do this, the moments of inertia of the section, as indicated, must be taken about the two axes AB and CD. Moment Op Inertia About CD: Two i8"X" plates-aXiXli'-607.50 Four 3j"X 3i"X i i-lb angles about own axis = 14.20 Four 3j"X3i"X n-lb.angles about CO=4X3-25X(7-99)J= 829.92 Moment of inertia =1451.62 Moment Of Inertia About AB: Two i8"Xj"Platesaboutownaxis 2X------.74 Two l8"XS" plates about AB 2X Ii.25x(6.o6)' = 758.70 Four 3$"X 3i"X 11-lb. angles about own axis = 14.20 Four 3i"X3l"Xii-lb.anglesaboutB=4X3-25X(7.38)'= 708.38 Moment of inertia = 1482.02 These, computations show, first, that the moment of inertia about AB is a little larger than that about CD, which is as it should be. They also show that the'radius of gyration r is 6.39 inches. The approximate rule gives r = 6.3 inches. These two values are sufficiently near to accept the former. The trial composition of section may, therefore, be considered satisfactory and final. The thickness of the side plates, .625 inch, is sufficient to insure no buckling in the unsupported width between rivets. Similarly the length of leg of the 3-inch angles is also far within safe or proper limits. All features of the cross-section are, therefore, so arranged as to meet all the requirements of suitable resistance in detail. The details of the ends of the columns where they are formed into jaws, as shown by Figs. 9 and 10, still remain to be designed. The diameter of pin will be taken at 7 in...
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Add this copy of The Elasticity and Resistance of the Materials of to cart. $52.12, good condition, Sold by BookDepart rated 4.0 out of 5 stars, ships from Shepherdstown, WV, UNITED STATES, published 1883 by John Wiley & Sons.
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Seller's Description:
Good. Hardcover; surplus library copy with the usual stampings; reference number taped to spine; fading and shelf wear to exterior; hinges cracked; otherwis e contents in good condition with clean text.
