New York [etc.] Simmons-Boardman Pub. Co. [etc.] · leaf 304
values in the formula we have: 100 X 34 X 34 33-2 X 1 _ .i,.,90 lh^. At the speed named the pisff persecond, whi, ii m,m. iii. Ibeloadof 3,590 lbs., acting on an arm of m i .i,,, , aiul removed 10 limes per second. Tie i. ter where it offers the mmmmm le^i-: „ , , ■■. For a load thus sud-… … J> = = 17,200 lbs. pr. sq. in. which shows a factor of safety of less than five, or onlyone-half of what it should be; and a stress of more th:uihalf the elastic resistance of the steel. As explained, the formula is based on the strength of thewhole section, and the maximum fiber stress must be…
Railroads · Railroad cars
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