Young s modulus is named after thomas young,19th century,british scientist. To determine youngs modulus of the given material of uniform bending. Zero shearing force along its length as would be obtained by applying equal couples at each end. Young s modulus of the given material using non uniform bending method. The given bar is supported symmetrically on two knife edges. To determine the youngs modulus of the material of the bar subjected to nonuniform bending by measuring the depression at the center using optical lever. Youngs modulus pin and microscope non uniform bending. Derivation of expression for youngs modulus let us consider a beam initially unstressed as shown in fig 1a. Young modulus nonuniform bending physics expreiment. To analyze the elastic behavior of the given wooden beam from the results obtained apparatus required.
To find the young s modulus of the given material of the beam by non uniform bending. The length l of the bar between the knife edges is measured. Approximate elastic stress estimates for elbows under. Now the beam is subjected to a constant bending moment i. In non uniform bending, the beam meter scale is supported symmetrically on two knife edges and loaded at its centre. Hence calculate the young s modulus of the material bar. A weight hanger is suspended exactly at the midpoint of the bar. Aim of this experiment is to find the young s modulus of the given material by uniform bending using pin and microscope method. General objective to evaluate the elastic behavior of the given wooden beam by pin and microscope experimental method and to find its young s modulus specific objectives 1. Youngs modulus of the material of a beam by method of bending of. To calculate the young s modulus of the wooden beam from the mean elevation and slope obtained from table and graph, respectively 5. The beam will bend to the radius r as shown in fig 1b. Aim of this experiment is to find the youngs modulus of the given material by uniform bending using pin and microscope method.
1517 1497 809 414 1089 807 884 279 840 1458 651 909 1144 269 859 399 1476 972 44 1377 1113 109 759 1027 175 297 171 991 1580 614 1378 1229 1389 151 508 1062 882 1462 340 63 587 297 820 472 885 643 1148 1407 776 1296 670