Solid Mechanics _ Lab Manuals_ 2015

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The document contains manuals for various experiments conducted in solid mechanics.

Transcript of Solid Mechanics _ Lab Manuals_ 2015

  • Tension Test:

    EXPERIMENTAL PROCEDURE:

    1. Turn ON the main power supply. 2. Switch ON the Machine. 3. Turn the Emergency switch to ON the machine. 4. Switch ON the Computer. 5. Double click on the testing software Power Test_20 Ton_UTM. 6. Enter user name & password. (Given by Instructor). 7. Select the correct transducer and extensometer, then online. 8. Select desired testing project on parameter input window. 9. Measure the Dimensions of the given Specimen. 10. Input specimen dimension, gauge length and relative parameters. 11. Grips and specimen mounting. 12. Press Clear Tab in software one by one to set zero. 13. Start testing. The software will switch to testing interface automatically. 14. Observe the testing procedure. 15. (Move two steps away from the machine, SAFETY MEASURES!!) 16. After test is over, the testing results will shown in the result column automatically. 17. Press Build Report Tab then export the report in excel format and save file. 18. Next specimen, please repeat step 9-16. 19. After all the tests are done, turn off software, turn OFF the Emergency Stop, then the

    machine power supply and then the main power supply.

  • 3 Point Bending Test (Compression Test):

    EXPERIMENTAL PROCEDURE:

    1. Turn ON the main power supply. 2. Switch ON the Machine. 3. Turn the Emergency switch to ON the machine. 4. Switch ON the Computer. 5. Double click on the testing software Power Test_10 Ton_UTM. 6. Enter user name & password. (Given by Instructor). 7. Select the correct transducer, then online. 8. Select desired testing project on parameter input window. 9. Measure the Dimensions of the given Specimen. 10. Input specimen dimension, gauge length and relative parameters. 11. Mount the 3 Point bending test fixture and specimen. 12. Press Clear Tab in software one by one to set zero. 13. Start testing. The software will switch to testing interface automatically. 14. Observe the testing procedure. 15. (Move two steps away from the machine, SAFETY MEASURES!!) 16. After test is over, the testing results will show in the result column automatically. 17. Press Build Report Tab then export the report in excel format and save file. 18. Next specimen, please repeat step 9-16. 19. After all the tests are done, turn off software, turn OFF the Emergency Stop, then the

    machine power supply and then the main power supply.

  • Rockwell Hardness Testing:

    EXPERIMENTAL PROCEDURE:

    1. Turn ON the main power supply.

    2. Switch ON the UPS.

    3. Switch the Rockwell Hardness Testing machine ON. (Rear switch).

    4. Set the display by selecting the appropriate load and indenter w.r.t the material.

    5. Place the specimen (whose hardness needs to be tested) on the test table.

    6. Rotate the hand-wheel of the table gently so as to move the specimen towards the

    indenter and it just touches the tip of the indenter.

    7. Apply the pre-load on the specimen by further rotating the hand-wheel very gently

    and slowly until the display of correct preload as below:

    8. When the above display is seen, a bleep will be heard, at this point stop rotating the

    hand-wheel.

    9. The rest of the loading cycle is automatic (application and removal of the

    additional load) displayed by a rotation of the right-hand digit in the display.

    The full load is normally applied for two seconds, and this dwell time is

    indicated by a 'count-down' on the display

    10. At the end of the load cycle, the hardness number will be displayed resolved

    to 0.1 units.

  • Charpy Impact Test:

    EXPERIMENTAL PROCEDURE:

    Caution: Conduct the experiment in the presence on a Faculty/Staff/TA

    only.

    Measure the Dimensions of the given Specimen.

    Draw a neat sketch of the same.

    1. Turn ON the main power supply. 2. Switch ON the Machine. 3. Turn the Emergency switch to ON the machine. (Now the Display starts) 4. Place the specimen on the supports using the Notch Alignment Unit. 5. Check for Zero Display. (Press Zero, once only) (or Press F3) 6. If Pendulum is hanging freely, then Press (F1) to RAISE PENDULUM. (make sure it

    raises in anti-clockwise direction)

    7. Check in display, the Pendulum Energy is 150 J, and Angle is 0. 8. (Move two steps away from the swing of Pendulum, SAFETY MEASURES!!) 9. Press F13 (shift F5), for the pendulum to swing freely and strive the specimen, it

    automatically gets back to its initial position.

    10. Note down the absorbed energy. 11. Press F2 now to lower down the pendulum. 12. After all the tests are done, turn OFF the Emergency Stop, then the machine poser

    supply and then the main power supply.