Unsymmetrical Bending

Mount up a beam part on the vertical cantilever system and measure the cross sectional dimensions. 2. Set the place of a geometrical axis of the beam part at zero diploma. three. Begin the bending take a look at on the cantilever beam with the angular place zero equals zero.

four. Add weights onto the hanger one after the other. For L part, use loading. For Z part, loading : egg, egg, egg. Document the dial gauge readings at every stage of load. 5. Repeat the bending take a look at at completely different angular positions of the utilized load with an increment of 22.

zero. Please correctly present your calculations) Coaching on vital pondering (20 marks out of 100): 1. If two dial gauges aren’t positioned at a proper angle to one another as proven in Determine (a), justify whether or not the aims of the experiment are nonetheless achieved. (eight marks) NAS. The aims of the experiment may be nonetheless achieved, whereas it’s essential to do some substitution. Due to this fact this methodology remains to be work when positioned two dial gauges at an arbitrary angle so long as the precise angle had been measured.

Nonetheless, the dial gauge could also be not as delicate as that of detecting the deflection Of part of curiosity if the gauges aren’t positioned at a proper angle.

As a consequence, the consequence couldn’t be derived simply and straight and the corresponding error are anticipated to be bigger than former one. However, total, it nonetheless works. 2. If the load is utilized to the nook of the part as proven in Determine (b), criticize whether or not the aims of the experiment are achieved. (12 marks) NAS, the aims of this experiment can’t be achieved.Fifth load is utilized to nook of the part, the general consequence beneath this drive is equal to the drive with the identical magnitude act on the shear enter and a second couple. Due to this fact, the members shall be twisted and create bending stress in addition to shear stress on the similar time.

Moreover, a standard stress may also be created because the diploma of deformation in each two arbitrary sections is completely different. Additionally, the change of inside regular stress will create assorted shear stress.