BENDING_THINGY_REPORT

BENDING_THINGY_REPORT - LABORATORY REPORT FOR ULTI M ATE...

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Unformatted text preview: LABORATORY REPORT FOR ULTI M ATE LOAD OF A BEAM UNDER BENDI NG Figure 1: Changing from elastic profile to plastic 3 2 5 Figure 1: Hand-Pumped based Loading System Figure 2: Chart Plotter attached to load sensor and resistance chipboard Figure 3: Set up for 3-point loading Figure 4: Set up for 4-point loading Table 1: Forces and point loading for both types of shapes Aluminium 6061 (From stress-strain graph) 12.75mm 50.55 mm Neutral Axis 78.85 mm 77.15 mm 25.10 mm 0.85 mm 0.85 mm Table 2: Forces and point loading for both types of shapes Y 1 Y 4 Y 5 Y d top New NA A 3 d 2 d 56 X X F 1 = 0.75 KN F 2 = 1.10 KN Graph 1: 3-point reinforced C-Shaped beam X X F 1 = 0.75 KN F 2 = 1.31 KN Graph 2: 4-point reinforced C-Shaped beam 0.155 Gpa 0.380 Gpa 0.225 Gpa . Figure 6: Par ts where reinforcement failed ure (left) resembles an I -Beam and sleeves (centre) added to supress thin wall buckling Graph 3: Rectangular beam X F 1 = 2.40 KN X F 2 = 3.50 KN Graph 4: C-Shaped beam X X F 1 = 0.48 KN F 2 = 0.73 KN Graph 5: Rectangular beam X X F 1 = 4.00 KN F 2 = 5.40 KN X X F 1 = 0.70 KN F 2 = 1.10 KN Graph 6: C-Shaped beam NANYANG TECHNOLOGICAL UNIVERSITY SCHOOL OF MECHANICAL AND AEROSPACE ENGINEERING P3.4 – ULTIMATE LOAD OF A BEAM UNDER BENDING STRENGTH OF MATERIALS LABORATORY LOCATION: N3.2 – B2 – 01 2008/2009 Name of Student: Mohamed Tahir Bin Abdul Rahim Matriculation No: 068310K03 Laboratory Sub-Group: LA06 (d) Date: 26 th February 2009 Name of Supervisor: Professor Xiao Zhongmin NANYANG TECHNOLOGICAL UNIVERSITY ULTIMATE LOAD OF A BEAM UNDER BENDING ABSTRACT The principles constituting the bending of beams are often essential in many engineering fields. For instance in Civil engineering, the understanding on how a structural beam behaves under external loading is vital in ensuring the structure will not fail and thus causing losses to property and lives. In mechanical engineering, it is important to understand the characteristics a beam undergoes when it is subjected to different types of loading and ensure the beams work in the elastic range. In doing so, we are then able to solve problems of complex nature on different types of structures. Therefore in fields such as metal working, we are able to assess how bendable different types of material, design appropriate press machines and dies and also calculate residual stress on a sheet is formed. Due to the importance of plastic bending, numerous application of plastic bending has been devised such as cross roll straightening of circular bars and nosing of thin-walled channels. In this report I will be explaining the theory behind how a load will cause a beam to bend and also the relevant calculations. Also, some terms related to plastic bending will be explored in the theory section. Finally, I will end the report by discussing certain issues on the project....
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This note was uploaded on 10/22/2009 for the course PHY PHY taught by Professor Loh during the Spring '09 term at Nassau CC.

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BENDING_THINGY_REPORT - LABORATORY REPORT FOR ULTI M ATE...

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