Mechanical testing of metals and polymers - Assignment Example

Download file to see previous pages... L/Lo where Lo is the initial gage length and ?L is the change in the gage length (L-Lo). Procedure: Hydraulic testing machine, steel, mm/min, force and strain. Results Nr Rm N 0.2% ?break (%) E N/mm3 G Nmm2 1 8303.90 0.1 1903 64.77 24.91 2 13853.22 0.4 1903 141.15 54.29 3 17948.63 0.8 1903 208.40 80.15 4 11098.39 1.15 901 410.65 157.94 Procedure: Hydraulic testing machine, carbon steel, mm/min, stress and strain. Nr Rm 0.2% ?break (%) E N/mm3 G( N/mm2) dL (mm) 1 153 0.1 1.37 100 38.46 2 2 170 0.2 -2.41 -50 -19.23 -4 3 217 0.4 1.91 50 19.23 4 4 251 0.85 1.57 50 19.23 4 Procedure: electromechanical machine, acetal, mm/min, stress and strain. Nr Rm (kJ/m2) 0.2% ?break (%) E G (N/mm2) 1 14.43 0.2 9.39 10.71 4.28 2 11.96 0.2 7.65 13.16 5.20 3 10.63 0.2 6.93 14.42 5.77 4 10.11 0.2 6.67 15.00 6.00 5 12.60 0.2 8.27 12.10 4.84 6 15.94 0.2 10.40 9.62 3.85 Procedure: electromechanical machine, HDPE, mm/min, stress and strain. Nr Rm (kJ/m2) 0.2% ?break (%) E G (N/mm2) 1 53.16 0.2 33.79 2.90 1.16 2 55.55 0.2 36.72 2.73 1.09 3 43.34 0.2 28.49 3.50 1.40 4 45.05 0.2 29.29 3.41 1.36 5 51.60 0.2 32.86 3.05 1.22 6 25.93 0.2 16.64 6.00 2.4 Procedure: electromechanical machine, NYLON 66, mm/min, stress and strain. ...
.14 1.26 3 46.49 0.2 32.55 3.07 1.23 4 49.52 0.2 29.69 3.36 1.34 5 46.88 0.2 30.40 3.29 1.32 6 50.60 0.2 32.96 3.04 1.22 Procedure: electromechanical machine, PVC, mm/min, stress and strain. Nr Rm (kJ/m2) 0.2% ?break (%) E G (N/mm2) 1 6.29 0.2 3.96 25.00 10.00 2 7.14 0.2 4.41 22.73 9.09 3 10.09 0.2 6.54 15.31 6.12 4 6.78 0.2 4.30 23.44 9.38 5 32.98 0.2 20.62 4.84 1.94 6 9.86 0.2 6.03 16.67 6.67 Discussion................................... B2. Vickers hardness measurement of various engineering alloys Procedure: ZHV 30 micro and macro machine, Acetal. Nr Load S.A VHN 1 7.5 48.81 0.15 2 7.5 47.95 0.16 3 7.5 48.87 0.15 4 7.5 49.49 0.15 5 7.5 49.22 0.15 6 7.5 48.94 0.15 Procedure: ZHV30 micro and macro machine, 4ET002 Tehrmoplastics, Nr Load S.A VHN 1 3.32 30.5 0.11 2 3.14 31 0.10 3 1.16 29.88 0.04 4 1.83 30.25 0.06 5 1.94 29.62 0.65 6 1.79 29.38 0.06 7 2.21 30.19 0.07 8 4.33 32.66 0.13 9 4.71 32.93 0.14 10 4.37 31.67 0.14 11 6.69 29.65 0.23 12 7.10 30.3 0.23 13 9.52 32.98 0.30 14 151.69 32.22 4.71 15 113.90 32.29 3.53 16 85.14 31.91 2.67 17 - 31.91 - 18 4.43 41.25 0.11 19 7.90 41.75 0.19 Procedure: ZHV 30 micro and macro machine, HDPE. Nr Load S.A VHN 1 7.5 47.67 0.16 2 7.5 49.57 0.15 3 7.5 49.3 0.15 4 7.5 48.76 0.15 5 7.5 47.76 0.16 6 7.5 48.13 0.16 Procedure: ZHV 30 micro and macro machine, NYLON 66. Nr Load S.A VHN 1 7.5 48.97 0.15 2 7.5 51.36 0.15 3 7.5 51.68 0.15 4 7.5 51.52 0.15 5 7.5 50.88 0.15 6 7.5 51.14 0.15 The key objective in this study was to relate the mechanical properties with the microstructure that was given out by a specific treatment of heat. In measuring the mechanical properties, two methods were used. These were nanoindentation and compression tests. Compression test is a fast and simple method of identifying the elastic limit and material ...Download file to see next pagesRead More