Mechanical Science

Introduction to 2(NAMEExercise 1 . `Tensile TestingObjectiveAt the give notice of the check out , the assimilator essential able to perform a fictile rise to destruction on 2 different plastic snuff itn pieces in to determine their waxy propertiesMaterialsThe textiles and apparatus that were occupy in the examine were Mosanto (Hounsd ) Tensometer , twain tensile foot head for the hills pieces of ferrous somatic , reduce forefinger and a digital dial test indictorMethodologyIn examination for the tensile military capability of a bodily , Mosanto (Hounsd Tensometer was utilize . The first part of the examine was tantrum up of the utter apparatus . And then , the charge up increment to be used in the test was rigid and the following were used as shipment increment 0 .5N , 1N , 5N , 10N or 20N . The di sciples monitored the tensile testing of the ferrous satisfying , one(a) student turning the overlay of the tensometer the other one remain an eye on the preventive in the fill up indicator while the third student checks the ferrous material . When the ferrous material r all(prenominal)(prenominal)es its fracture or becomes deformed , the load associated in the load indicator is the preset loadThe steps to a toweringer place were repeated on different load increments . The procedures were besides make on the other ferrous materialResultsFigure 1 . Stress- birdcall plot of the deuce nerve samplesDiscussionFigure 1 shows the stress-strain diagram of the cardinal ferrous materials used in the experiment . Stress is the thread employ per unit area . It measures the capacity of the material to suffer the tensile event , thus a material with senior high school tensile stress can resist high tensile office compared to other material . While a strain is the deformation due to the activity of some outside embr! aces kindred(p) tensile force . In the go for it can be seen that the graph of the stress-strain diagram is different on the both materials . From the augur , it suggest that high degree Celsius paper sword leave behind lastly need much tensile force to deform the material compared to the less carbon steel subject matter . It shows that at the same deformation the 0 .8 carbon steel needs more tensile force compared to the 0 .1 carbon steel . other interesting to the graph is that the severance strength of the both materials was also different . 0 .1 carbon steel has higher(prenominal) rupture strength than of the 0 .8 carbon . This shows that the 0 .8 carbon steel is more ductile than the other material . ADDIN EN .CITE Andrew Pytel1987116Andrew Pytel Ferdinand vocaliserStrength of MaterialsFourth1987HarperCollins newspaper publisher Inc .ConclusionForm the experiment , we can come together that material with high carbon cnontent describe up stakes have higher t ensile strength in force(p) now is prone to ductility The strength of a material is not the only step that must be considered in calculative structures . The stiffness of a material is frequently of equal immenseness . In a lesser degree , mechanical properties such as unfeelingness , toughness , and ductility determine the extract of a material . These properties are determined by qualification test on the materialsExercise 2 ` lastingnesss on a BeamObjectiveAt the demolition of the experiment , the students must be able to determine the crook second in a simply supported calamus under the execute of a series concentrated scads , and compare the digression here and now obtained with that calculated theoreticallyApparatusIn determining the bite of a simply supported send under the application of a concentrated load , the apparatus that were used in the experiment were , two weighing outdo that are located at both ends . An aluminium alloy channel theatrical f unction is supported between the outgos . Three susp! ension gips and load hangers enable loads to be applied at mixed points along the 1m span of broadcast . Various loads in Newton have been suppliedMethodThe first step done in the experiment is the setting up of the radiation therapy at the two weighing scale that are fixed at both ends . 1 meter distance was allotted between the two weighing scales . Three load hangers were used in the experiment and were placed at different position depending on the endurance of the students . The distance from one end of all(prenominal) tierce hangers was relieve as well the load applied by each hanger . The mass shown in the weighing scale was then nevertheless . The steps were replicated for the second time and also for other tercet different distances of the three loadsResultsFirst Beam 200mm 0 .2m100mm 0 .1m100mm 0 .1m600mm 0 .6mRA 1 .125KgF m x?fx 0?fy 00 5 .5 5 .5 5 .5 _ RA _ RB0 16 .5 _ RA _ RBB .M 00 (5 .5 x 0 .2 (5 .5 x 0 .3 (5 .5 x 0 .4 ) _ (RA x 0 ) _ (RB x 10 1 .1 1 .65 2 .2 _ 0 _ RB0 4 .95 _ RBRB 4 .95N0 16 .5 _ RA _ RB0 16 .5 _ RA _ 4 .95RA 16 .5 _ 4 .95RA 11 .55N(0 x 0 .2S .F 11 .55NWhen x 0m S .F 11 .55NWhen x 0 .1m S .F 11 .55NWhen x 0 .2m S .F 11 .55NB .M 11 .55xWhen x 0m B .M 0NmWhen x 0 .1m B .M 1 .155NmWhen x 0 .2m B .M 2 .31Nm(0 .2 x 0 .3S .F 11 .55 _ 5 .5 6 .05NWhen x 0 .2m S .F 6 .05NWhen x 0 .3m S .F 6 .05NB .M 11 .55x _ 5 .5 (x _ 0 .2B .M 11 .55x _ 5 .5x 1 .1B .M 6 .05x 1 .1When x 0 .2m B .M 2 .31NmWhen x 0 .3m B .M 2 .915Nm(0 .3 x 0 .4S .F 11 .55 _ 5 .5 _ 5 .5 0 .55NWhen x 0 .3m S .F 0 .55NWhen x 0 .4m S .F 0 .55NB .M 11 .55x _ 5 .5 (x _ 0 .2 ) _ 5 .5 (x _ 0 .3B .M 11 .55x _ 5 .5x 1 .1 _ 5 .5x 1 .65B .M 0 .55x 2 .75When x 0 .3m B .M 2 .915NmWhen x 0 .4m B .M 2 .97Nm(0 .4 x 1S .F 11 .55 _ 5 .5 _ 5 .5 _ 5 .5 _ 4 .95NWhen x 0 .4m S .F _ 4 .95NWhen x 0 .5m S .F _ 4 .95NWhen x 0 .6m S .F _ 4 .95NWhen x 0 .7m S .F _ 4 .95NWhen x 0 .8m S .F _ 4 .95NWhen x 0 .9m S .F _ 4 .95NWhen x 1m S .F _ 4 .95NB .M 11 .55x _ 5 .5 (x _ 0 .2 ) _ 5 .5 (x _ 0 .3 ) _ 5 .5 (x _ 0 .4B .M 11 .55x _ 5 .5x 1 .1 _ 5 .! 5x 1 .65 _ 5 .5x 2 .2B .M _ 4 .95x 4 .95When x 0 .4m B .M 2 .97NmWhen x 0 .5m B .M 2 .475NmWhen x 0 .6m B .M 1 .98NmWhen x 0 .7m B .M 1 .485NmWhen x 0 .8m B .M 0 .99NmWhen x 0 .9m B .M 0 .495NmWhen x 1m B .M 0NmFigure 1 : Shear draw and quarter Graph (First BeamFigure 2 : warp Moment Graph (First BeamSecond Beam200mm 0 .2m200mm 0 .2m300mm 0 .3m300mm 0 .3mRA 1 .3KgF m x gF 1 .3 x 9 .81F 12 .75NRB 1kgF m x gF 1 x 9 .81F 9 .81N?fx 0?fy 00 5 .5 10 .5 7 .5 _ RA _ RB0 23 .5 _ RA _ RBB .M 00 (5 .5 x 0 .2 (10 .5 x 0 .4 (7 .5 x 0 .7 _ (RA x 0 ) _ (RB x 10 1 .1 4 .2 5 .25 _ 0 _ RB0 10 .55 _ RBRB 10 .

55N0 23 .5 _ RA _ RB0 23 .5 _ RA _ 4 .95RA 23 .5 _ 10 .55RA 12 .95N(0 x 0 .2S .F 12 .95NWhen x 0m S .F 12 .95NWhen x 0 .1m S .F 12 .95NWhen x 0 .2m S .F 12 .95NB .M 12 .95xWhen x 0m B .M 0NmWhen x 0 .1m B .M 1 .295NmWhen x 0 .2m B .M 2 .59Nm(0 .2 x 0 .4S .F 12 .95 _ 5 .5 7 .45NWhen x 0 .2m S .F 7 .45NWhen x 0 .3m S .F 7 .45NWhen x 0 .4m S .F 7 .45NB .M 12 .95x _ 5 .5 (x _ 0 .2B .M 12 .95x _ 5 .5x 1 .1B .M 7 .45x 1 .1When x 0 .2m B .M 2 .59NmWhen x 0 .3m B .M 3 .335NmWhen x 0 .4m B .M 4 .08Nm(0 .4 x 0 .7S .F 12 .95 _ 5 .5 _ 10 .5 _ 3 .05NWhen x 0 .4m S .F _ 3 .05NWhen x 0 .5m S .F _ 3 .05NWhen x 0 .6m S .F _ 3 .05NWhen x 0 .7m S .F _ 3 .05NB .M 12 .95x _ 5 .5 (x _ 0 .2 ) _ 10 .5 (x _ 0 .4B .M 12 .95x _ 5 .5x 1 .1 _ 10 .5x 4 .2B .M _ 3 .05x 5 .3When x 0 .4m B .M 4 .08NmWhen x 0 .5m B .M 3 .775NmWhen x 0 .6m B .M 3 .47NmWhen x 0 .7m B .M 3 .165Nm(0 .7 x 1S .F 12 .95 _ 5 .5 _ 10 .5 _ 7 .5 _ 10 .55NWhen x 0 .7m S .F _ 10 .55NWhen x 0 .8m S .F _ 10 .55NWhen x 0 .9m S .F _ 10 .55NWhen x 1m S .F _ 10 .55NB .M 12 . 95x _ 5 .5 (x _ 0 .2 ) _ 10 .5 (x _ 0 .4 ) _ 7 .5 (x ! _ 0 .7B ..M 12 .95x _ 5 .5x 1 .1 _ 10 .5x 4 .2 _ 7 .5x 5 .25B .M _ 10 .55x 10 .55When x 0 .7m B .M 3 .165NmWhen x 0 .8m B .M 2 .11NmWhen x 0 .9m B .M 1 .055NmWhen x 1m B .M 0NmFigure 3 : Shear Force Graph (Second BeamFigure 4 : Bending Moment Graph (Second BeamDiscussionFrom the payoff of the experiment , it shows that the force applied by the hangers on the communicates will be equal to the reaction of the putz to the weighing scale . This shows that the system or the set up of the experiment is residuum . Another good evidence that shows this equilibrium condition is the pull up stakes of the theoretical computation . From the computed determine , the computed values were plotted in a graph to determine the hook and twist molybdenum of the given problem . It shows from the graph that end of the curve returns to the energy value of the shear force just in figure 1 and 3 . Also , the bending bit of the two beams shows that there is equilibrium in the moment applied to e ach beam . ADDIN EN .CITE Andrew Pytel1987116Andrew Pytel Ferdinand SingerStrength of MaterialsFourth1987HarperCollins publisher Inc .ConclusionConsequently , 0 .5N was the initial force on the load hangers which shows 0Kg at RA and RB on scale measurement . When a force is applied on the load hangers , it shows that at any moment when a force is applied on the load hangers the sequential force changes with appraise of RA and RB . From the calculations , it proves that the beam is at equilibrium and which shows that `the bending moment on top of the beam equals the bending moment at the tin can of the beam . The beam is also at equilibrium , when the shear force on top of the beam equals the shear force at the bottom of the beam . The experiment of force on a beam reveals the accuracy of the shear force and bending moment through with(predicate) calculation . scarcely , mean that the experiment of force on a beam and calculation of the beam are the samep-\cya - br\hp?I br[\g h?2j]?2?2?2ReferenceADDIN EN .REFLIST Andrew Pytel , F! erdinand Singer , Strength of Materials (Fourth edn : HarperCollins Publisher Inc , 1987 PAGEPAGE 12 ...If you want to get a full essay, site it on our website: OrderCustomPaper.com

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