. Carnegie Institution of Washington publication. 60 DISPLACEMENT INTERFEROMETRY BY TABLE 3.—Hard rubber. Thinner rod. 2L= cm.; 2^ = cm.; .4= ,- other data as above. Load kg. permanent. R/R' = = p Exio-10 P ANxio5 Exio-10 P AATxio8 Exio-H' kg. cm. kg. cm. kg. cw. I 0 2 725 3 1150 2 565 I 5 1. 60 4 1660 | 3 1103 2 585 5 2070 * 2 670 3 H35 4 1800 [ I -20 >i 62 4 1620 ) 5 2225 2 575 i . ^ ' *_ 5 2035 3-18* 4 2590 ** 3 1125 4 1795 J 5 22OO 4 1605 3 1335 ™ 3 1260 2 730 4 2460 1 I 15 ) 3 292O 2-53 I o 1-58 4 2555 J 2 605 * Loads 4, 5, 4
. Carnegie Institution of Washington publication. 60 DISPLACEMENT INTERFEROMETRY BY TABLE 3.—Hard rubber. Thinner rod. 2L= cm.; 2^ = cm.; .4= ,- other data as above. Load kg. permanent. R/R' = = p Exio-10 P ANxio5 Exio-10 P AATxio8 Exio-H' kg. cm. kg. cm. kg. cw. I 0 2 725 3 1150 2 565 I 5 1. 60 4 1660 | 3 1103 2 585 5 2070 * 2 670 3 H35 4 1800 [ I -20 >i 62 4 1620 ) 5 2225 2 575 i . ^ ' *_ 5 2035 3-18* 4 2590 ** 3 1125 4 1795 J 5 22OO 4 1605 3 1335 ™ 3 1260 2 730 4 2460 1 I 15 ) 3 292O 2-53 I o 1-58 4 2555 J 2 605 * Loads 4, 5, 4 kg. ** Loads 5, 4, 5 kg. The values of the modulus E were then computed from the triplets in suc- cession. One may note that the succession 5, 4, 5 kg. gives a much larger value of E than the contrasting succession of loads 4, 5, 4, kg. One can not, there-. fore, expect a smooth march of values unless this difference is systematically included, while it would be exceedingly difficult to even conjecture a rational method of quantitative interpretation. With this conceded, the mean values Were Load= 15 25 35 is l<g- io-10£ = These data are shown in figure 41. From them the mean rate R = AE/A (P/A ) = maY be deduced. This is in fact less than one-half the preceding ratio R, so that the suspicion that the rigid sheath containing the rod loosely contributes to the high E values at high loads is not removed. It is neces- sary to reduce the thickness of rods further. In figures 42 and 43 cyclic data are given for the same rod turned down further to the following dimensions: = 2^ = cm. A = Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
Size: 2150px × 1162px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
