The Mechanical Engineer's Pocket-book: A Reference Book of Rules, Tables, Data, and Formulæ, for the Use of Engineers, Mechanics, and StudentsWiley, 1902 - 1129 páginas |
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Página 247
... axis of rotation , as the neutral axis . The radius of gyration of the section equals the square root of the quotient of the moment of inertia divided by the area of the section . If R = radius of gyration , I = moment of inertia and A ...
... axis of rotation , as the neutral axis . The radius of gyration of the section equals the square root of the quotient of the moment of inertia divided by the area of the section . If R = radius of gyration , I = moment of inertia and A ...
Página 248
... neutral axis to the fibres farthest removed from that axis ; or Section modulus Moment of inertia Distance of extreme fibre from axis I z = y Moment of resistance = section modulus X unit stress on extreme fibre . Moment of Inertia of ...
... neutral axis to the fibres farthest removed from that axis ; or Section modulus Moment of inertia Distance of extreme fibre from axis I z = y Moment of resistance = section modulus X unit stress on extreme fibre . Moment of Inertia of ...
Página 256
... neutral axis of the cross - section , thereby increasing r ; There should be no initial internal stress ; The individual portions of the column should be mutually supporting ; The individual portions of the column should be so firmly ...
... neutral axis of the cross - section , thereby increasing r ; There should be no initial internal stress ; The individual portions of the column should be mutually supporting ; The individual portions of the column should be so firmly ...
Página 267
... neutral axis on the side which first ruptures . This definition , however , is based upon a theory which is yet in ... neutral axis , c = the shortest distance from that fibre to said axis , and I = the moment of inertia of the cross ...
... neutral axis on the side which first ruptures . This definition , however , is based upon a theory which is yet in ... neutral axis , c = the shortest distance from that fibre to said axis , and I = the moment of inertia of the cross ...
Página 269
... neutral axis and extreme fibre . For breaking load of circular section , replace bd2 by 0.59d3 . For good wrought iron the value of R is about 80,000 , for steel about 120,000 , the percentage of carbon apparently having no influence ...
... neutral axis and extreme fibre . For breaking load of circular section , replace bd2 by 0.59d3 . For good wrought iron the value of R is about 80,000 , for steel about 120,000 , the percentage of carbon apparently having no influence ...
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Términos y frases comunes
alloy aluminum annealed base beam carbon cast iron cent centre of gravity chord circle circular circular mils Circum circumference coefficient column compression copper cubic cubic foot curve cylinder Diam diameter Diff differential distance divide draw ductility elastic limit elongation equal equation factor of safety feet Flange force formula frustum Gauge given half heat increase inertia length load logarithm manganese maximum metal modulus moment of inertia multiply Neutral Axis ordinate perpendicular pipe plane plate polygon pounds per square pressure proportional radius of gyration Recipro resistance right angles rivets rope shearing side silicon sine specific gravity specimen square foot square inch standard steel strain strands stress subtract surface tangent temperature tensile strength tests thickness thread tons transverse triangle velocity weight wire wrought iron zinc