DEFLECTION OF BEAMS

... point of maximum deflection neai to the mid-length. The maximum deflection is 296 Deflections of beams Figure 13.1 Longitudinal and principal Figure 13.2 Displacements of the ... (1000 - T), and this produces a deflection of (1000 - fi(2)3 v= 3(200 x 109)(0.307 x 306 Deflections of beams If this equals the stretching of the wire, then (1000...

Ngày tải lên: 08/04/2014, 11:27

... EXERCISES ON BENDING OF BEAMS 1/ A simple beam AB with span length L = 3.5m carries a unifiorm load of intensity q = 6.4 kN/m (see figure). Calculate the maximum ... uniform load of intensity q = 1.5 kN/m acts on the beam. Calculate the required side dimension b of the square cross section assuming L = 2.5 m and σ allow = 12 MPa. Include the the effect of the weight ... the eff...

Ngày tải lên: 22/12/2013, 14:16

... Portion of circular membrane. Let w = out -of- plane deflection at any radius r u = membrane tension at a radius r t = thickness of membrane I9 Lateral deflections of circular ... consideration will be made of three classes of plate problem, namely (i) small deflections ofplates, where the maximum deflection does not exceed half the plate thickness, and the d...

Ngày tải lên: 08/04/2014, 11:28

... commissioning of low energy electron beams of a medical linear accelerator for Monte Carlo dose calculation using NXEGS software (NXEGS version 1.0.10.0, NX Medical Software, LLC). A unique feature of ... limits defined on seven measures of error to assess the performance of the program, finding that, regardless of the composition of commissioning sets, mean values of the...

Ngày tải lên: 03/11/2012, 10:05

... maximum standard deviation of 0.031. 6.4.3 Effect of cable eccentricity To show the effect of cable eccentricity, the predicted results of the typical beams and the beams with large eccentricities ... capacity of the beams with large eccentricities is higher as compared with the typical beams in consideration of the same condition. 104 -104- from Fig.5.8a that t...

Ngày tải lên: 07/11/2012, 11:04

... observations of such kind of beams like composite beams or slabs are not available in the technical literature and limited - time of the course of study. Therefore, the applications of the analytical ... by initial cable profile, span-to-depth ratio, deflected shape of the beam, boundary condition of the end of beam, amount of initial prestress, etc. This makes th...

Ngày tải lên: 07/11/2012, 11:04

... bending and shearing deflections at the centre of the beam. 11 Beams of two materials 11 .I Introduction Some beams used in engineering structures are composed of two materials. A timber ... the beam of Figure 1 1.2(i) with reinforcing plates made of timber, but having thicknesses 268 Beams of two materials as shown in Figure 11.2(ii); the equivalent timber be...

Ngày tải lên: 08/04/2014, 11:27

... limit of proportionality, the distribution of stresses over the depth of the beams no longer remains linear, as in the case of elastic bending. The general problem of the plastic bending of beams ... More general case of plastic bending In the case of the rectangular and I-section beams treated so far, the neutral axis of bending coincided with an axis of...

Ngày tải lên: 08/04/2014, 11:28

... understood than that of the torsion of a non- circular section, the application of a membrane analogy to the torsion of non-circular sections considerably simplified the stress analysis of the latter. ... circular section shaft of Figure 20.1 1, and assume that, u =w=o where, u = radial deflection v = circumferential deflection w = axial deflection 508 Torsi...

Ngày tải lên: 08/04/2014, 11:29