The Mechanical Engineer's Pocket-book: A Reference Book of Rules, Tables, Data, and Formulæ, for the Use of Engineers, Mechanics, and StudentsJ. Wiley & sons, 1902 - 1113 σελίδες |
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Αποτελέσματα 1 - 5 από τα 65.
Σελίδα x
... Elongation .. Shapes of Test Specimens .. Compressive Strength .. .......... Columns , Pillars , or Struts Hodgkinson's Formula ... Gordon's Formula . Moment of Inertia . Radius of Gyration . .... Elements of Usual Sections . Strength ...
... Elongation .. Shapes of Test Specimens .. Compressive Strength .. .......... Columns , Pillars , or Struts Hodgkinson's Formula ... Gordon's Formula . Moment of Inertia . Radius of Gyration . .... Elements of Usual Sections . Strength ...
Σελίδα 224
... elongation was only from 0.75 to 1.1 per cent . .159 224,000 .191 201,600 WIRES OF DIFFERENT METALS AND ALLOYS . ( J. Bucknall 224 MATERIALS . Specifications for Galvanized Iron Wire Strength of Piano Wire Plough-steel Wire.
... elongation was only from 0.75 to 1.1 per cent . .159 224,000 .191 201,600 WIRES OF DIFFERENT METALS AND ALLOYS . ( J. Bucknall 224 MATERIALS . Specifications for Galvanized Iron Wire Strength of Piano Wire Plough-steel Wire.
Σελίδα 237
... elongation ) is two thirds of the maximum . For steel , with a modulus of elasticity of 30,000,000 , this is equivalent to that point at which the increase of elongation in an 8 - inch specimen for 1000 Îbs . per sq . in . increase of ...
... elongation ) is two thirds of the maximum . For steel , with a modulus of elasticity of 30,000,000 , this is equivalent to that point at which the increase of elongation in an 8 - inch specimen for 1000 Îbs . per sq . in . increase of ...
Σελίδα 241
... elongation y , or W = 1/2 Qy . Whence , neglecting the work that may be dissipated in heat , 1 / 2Qy : = Ph + Py . If e be the elongation due to the static load P , within the elastic limit y = e ; whence P Q = P ( 1 + 1/1 + 2 h ) , e ...
... elongation y , or W = 1/2 Qy . Whence , neglecting the work that may be dissipated in heat , 1 / 2Qy : = Ph + Py . If e be the elongation due to the static load P , within the elastic limit y = e ; whence P Q = P ( 1 + 1/1 + 2 h ) , e ...
Σελίδα 242
... elongation of the piece , measured between gauge - marks placed a stated distance apart before the test ; and the reduction of area at the point of fracture . The load at the elastic limit and the maximum load are recorded in pounds per ...
... elongation of the piece , measured between gauge - marks placed a stated distance apart before the test ; and the reduction of area at the point of fracture . The load at the elastic limit and the maximum load are recorded in pounds per ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
alloy aluminum angle base beam bolt brass bricks carbon cast iron cent chord circle Circular Mils Circum circumference coefficient column compression compression member copper cubic cubic foot curve cylinder decimal Diam diameter Diff difference differential distance divide draw ductility elastic limit elongation Engineering equal equation factor of safety feet fibre Flange force formula frustum Gauge given half heat increase inertia length load logarithm manganese material maximum metal modulus moment of inertia multiply Neutral Axis perpendicular pipe plane plate pounds per square pressure proportional radius of gyration Recipro resistance rivets shearing side silicon sine solid specific gravity specimen square foot square inch standard steel strain strands stress subtract surface tangent temperature tensile strength tension tests thickness thread tons transverse triangle tubes velocity wrought iron zinc
Δημοφιλή αποσπάσματα
Σελίδα 688 - Notice the general condition of the boiler and its equipment and record such facts in relation thereto as bear upon the objects in view. If the object of the trial is to ascertain the maximum economy or capacity of the boiler as a steam generator, the boiler and all its appurtenances should be put in first-class condition.
Σελίδα 482 - CL are line pressure and sonic speed of the gas at £ -» — *, and y is the ratio of specific heat at constant pressure to specific heat at constant volume for the gas.
Σελίδα 396 - For the purposes of this specification, the yield point shall be determined by the careful observation of the drop of the beam or halt in the gauge of the testing machine.
Σελίδα xxxii - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 414 - If any number of forces acting at a point can be represented in magnitude and direction by the sides of a POLYGON taken in order, they are in equilibrium.
Σελίδα 691 - The coal should be weighed and delivered to the firemen in equal portions, each sufficient for about one hour's run, and a fresh portion should not be delivered until the previous one has all been fired. The time required to consume each portion should be noted, the time being recorded at the instant of firing the first of each new portion.
Σελίδα 692 - In tests for purposes of scientific research, in which the determination of all the variables entering into the test is desired, certain observations should be made which are in general unnecessary for ordinary tests.
Σελίδα 66 - In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Σελίδα 691 - ... moisture in the steam should be determined by the use of either a throttling or a separating steam calorimeter. The sampling nozzle should be placed in the vertical steam pipe rising from the boiler. It should be made of...
Σελίδα 6 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...