A Practical Treatise on the Strength of Material: Including Their Elasticity and Resistance to ImpactE. & F.N. Spon, 1883 - 525 páginas |
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Página 1
... becomes very unequal . For example , Fig . 1 is a plate of very elastic material whose normal form unloaded is a , b , c , d , and when strained by the central load W it becomes e , f , g , h . Obviously the central part is more ...
... becomes very unequal . For example , Fig . 1 is a plate of very elastic material whose normal form unloaded is a , b , c , d , and when strained by the central load W it becomes e , f , g , h . Obviously the central part is more ...
Página 11
... becomes 1.36 when piled three or four times , and 1.41 when piled six times ; beyond that point , however , its strength declines , and is reduced to that of a puddled bar when piled twelve times . The same authority has shown that with ...
... becomes 1.36 when piled three or four times , and 1.41 when piled six times ; beyond that point , however , its strength declines , and is reduced to that of a puddled bar when piled twelve times . The same authority has shown that with ...
Página 28
... becomes 21841 , or 4765723 , hence 1.0 · 723 · 277 , or 27.7 per cent . of the strength , is lost . Now if instead of arranging the rivets in two rows , as in Fig . 11 , we place them in five rows , as in Fig . 15 , we have on the line ...
... becomes 21841 , or 4765723 , hence 1.0 · 723 · 277 , or 27.7 per cent . of the strength , is lost . Now if instead of arranging the rivets in two rows , as in Fig . 11 , we place them in five rows , as in Fig . 15 , we have on the line ...
Página 37
... becomes 2.969 = Ꮮ = = X 50275-48 , say 5.5 , the value of ML . - ( 49. ) Again : to find S for say 150 - lb . steam with 4 - inch plate , the rule ( 47 ) becomes S 5.5 x 43150 = 1 · 238 , or say 1 inch . For example , 5 · 5 × 64 ÷ 150 ...
... becomes 2.969 = Ꮮ = = X 50275-48 , say 5.5 , the value of ML . - ( 49. ) Again : to find S for say 150 - lb . steam with 4 - inch plate , the rule ( 47 ) becomes S 5.5 x 43150 = 1 · 238 , or say 1 inch . For example , 5 · 5 × 64 ÷ 150 ...
Página 46
... becomes necessary to use a lower one , the risk being of course proportionally increased ( 78 ) . ( 68. ) " Boilers for very high Pressures . ” — Tables 14 , 15 are strictly adapted for 50 - lb . steam only , but may be used for higher ...
... becomes necessary to use a lower one , the risk being of course proportionally increased ( 78 ) . ( 68. ) " Boilers for very high Pressures . ” — Tables 14 , 15 are strictly adapted for 50 - lb . steam only , but may be used for higher ...
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Otras ediciones - Ver todas
A Practical Treatise on the Strength of Materials: Including Their ... Thomas Box Vista completa - 1893 |
A Practical Treatise on the Strength of Materials: Including Their ... Thomas Box Vista completa - 1893 |
Términos y frases comunes
19 tons annealed Barlow Blaenavon boiler bottom flange breadth breaking weight bursting pressure calculated cast iron cent centre cols compressive strain correction for incipient crushing strain crushing strength cylinder dead load depth dimensions effect ends flat equal error experiment gave experimental Factor of Safety feet long foot long girder given by Table gives hence Hodgkinson inch diameter inch square inch thick incipient crushing increase lattice girders length limit of Elasticity material mean metal Modulus of Elasticity natural number due nearly neutral axis obtain Permanent Set pitch plate-iron practice ratio rectangular pillars reduced require resistance rivet-holes rivets safe load shearing shows solid plate square inch steel Strain per Square STRENGTH OF MATERIALS Table 34 Table 89 tensile strain tensile strength tons per square top flange torsional transverse strength tube tubular beams weight by flexure wrinkling strain wrought iron
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Página 585 - Long-Span Railway Bridges, comprising Investigations of the Comparative Theoretical and Practical Advantages of the various adopted or proposed Type Systems of Construction, with numerous Formulae and Tables giving the weight of Iron or Steel required in Bridges from 300 feet to the limiting Spans ; to which are added similar Investigations and Tables relating to Short-span Railway Bridges.
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