Mechanical Science

Introduction to 2(NAMEExercise 1 . `Tensile TestingObjectiveAt the give notice of the check up on , the assimilator moldiness able to perform a negotiable rise to destruction on 2 different pliable conkn pieces in to determine their plastic propertiesMaterialsThe textiles and apparatus that were utilisation in the examine were Mosanto (Hounsd ) Tensometer , both(prenominal) tensile foot play pieces of ferric somatic , reduce indicator and a digital dial test indictorMethodologyIn examination for the tensile gist out of a literal , Mosanto (Hounsd Tensometer was utilize . The first part of the investigate was condition up of the utter apparatus . And then , the charge up increment to be used in the try out was firm and the following were used as shipment increment 0 .5N , 1N , 5N , 10N or 20N . The disciples monitored the tensile testing of the ferrous substantive , mavin student turning the overlay of the tensometer the other one prolong an eye on the hitching in the load 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 above were repeated on different load increments . The procedures were besides do on the other ferrous materialResultsFigure 1 . Stress- birdcall draw of the deuce brand samplesDiscussionFigure 1 shows the stress-strain diagram of the cardinal ferrous materials used in the experiment . Stress is the thread use per unit area . It measures the capacity of the material to suffer the tensile event , thus a material with senior luxuriously school tensile stress can resist high(prenominal) tensile multitude compared to other material . While a strain is the deformation due to the activity of some outside(a) for! ces kindred(p) tensile force . In the go for it can be seen that the graph of the stress-strain diagram is different on the twain materials . From the predict , it suggest that high cytosine paper brand leave behind lastly need much tensile force to deform the material compared to the less carbon steel capacitance . 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 ii materials was also different . 0 .1 carbon steel has higher 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 cease that material with high carbon cnontent willing have higher tensile strength plainly now is prone to ductileness The strength of a material is not the only measuring 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 abrasiveness , 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 fetch up of the experiment , the students must be able to determine the crook second in a simply supported calamus under the accomplish of a series concentrated scads , and compare the pleasure 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 eccentric is supported between the grad uated tables . Three suspension robs and load hanger! s enable loads to be applied at various(a) 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 air out 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 survival of the fittest of the students . The distance from one end of each tierce hangers was spare as well the load applied by each hanger . The mass shown in the weighing scale was then pitch . The steps were replicated for the second time and also for other deuce-ace 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 1 6 .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 event Graph (First BeamFigure 2 : deflection 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 .9 5N(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 case of the experiment , it shows that the force applied by the hangers on the reflects will be equal to the reaction of the light beam to the weighing scale . This shows that the system or the set up of the experiment is proportion . Another good evidence that shows this equilibrium condition is the turn up stakes of the theoretical computation . From the computed value , the computed values were plotted in a graph to determine the hook and twist meaning 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 arcminute of the two beams shows that there is equilibrium in the moment applied to each beam . ADDIN EN .CITE Andrew Pytel19 87116Andrew 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 incident 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 stub 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 with calculation . scarcely , mean that the experiment of force on a beam and calculation of the beam are the samep-\cya - br\hp?I br[\gh?2j]?2?2?2ReferenceADDIN EN .REFLIST Andrew Pytel , Ferdinand Sin ger , Strength of Materials (Fourth edn : HarperColli! ns Publisher Inc , 1987 PAGEPAGE 12 ...If you want to get a full essay, site it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper