Mechanical testing of metals and polymers - Assignment Example

2. Procedure: Test Equipment Material Tested Test Speed mm/min Secant Tensile Strength-Metal Universal Tensile Testing machine 0.1% C Steel 0.4%C Steel 0.8%C Steel 1.15%C Steel 50 Tensile Strength-Plastics Universal Tensile Testing machine HDPE,PP-PE, PVC, PC, Acetal (POM), Nylon (PA66), GRN (PA66+glass fibres) 10, 50 & 500 Pendulum Impact Tests Zwick/Roell Pendulum Impact Tester PVC, POLYCARBONATE, NYLON 66, HDPE, ACETAL 7.5J Force Vickers hardness Test Vickers Testing Machine 0.1% C Steel 0.

2%C Steel 0.4%C Steel 0.85%C Steel 20 Kg load for (2) minutes 3. Results Red 0.1% C Steel Green 0.4%C Steel Blue 0.8%C Steel Orange 1.15%C Steel Fmax Fmax dL at Fmax FBreak dL at break Nr N/mm? N mm N mm 1 414.53 8302.90 6.4 2020 10.7 2 691.64 13853.22 4.9 3930 8.1 3 896.10 17948.63 4.3 6720 5.6 4 1108.75 11098.39 2.7 4030 3.4 dL = Strain Hardness of carbon steels (load 20Kg) 1st measurement 2nd measurement 3rd measurement 0.1% Carbon 146 148 153 0.2% Carbon 166 162 170 0.4% Carbon 209 213 217 0.

85% Carbon 255 259 251 Zwick/Roell Pendulum Impact Tester. 1-Jun-15 M/c Model No 5113. Ref No A466690. . 1.55 20.62 32.98 Charpy 7.50 “ 6 15.44 2.97 45.86 0.45 6.03 9.86 Charpy 7.50 Series Specimen width b0 Specimen thickness a0 Cross-section Impact energy Impact energy Impact resistance Work contents n = 5 mm mm mm? J % kJ/m? J x 15.82 2.978 47.11 0.38 5.05 8.03 7.50 s 0.3013 0.01304 1.074 0.09 1.16 1.80 0.00 ? 1.90 0.44 2.28 22.89 22.89 22.44 0.00 Zwick/Roell Pendulum Impact Tester. 1-Jun-15 M/c Model No 5113.

Ref No A466690. Force 7.5J Material: POLYCARBONATE Specimen width b0 Specimen thickness a0 Cross-section Impact energy Impact energy Impact resistance Type of test, PIT Work contents Legends Nr mm mm mm? J % kJ/m? J “ 1 15.82 3.11 49.2 2.29 30.50 46.49 Charpy 7.50 “ 2 15.5 3.12 48.36 2.39 31.93 49.52 Charpy 7.50 “ 3 16.01 3.11 49.79 2.44 32.55 49.03 Charpy 7.50 “ 4 15.99 3.12 49.89 2.23 29.69 44.63 Charpy 7.50 “ 5 15.39 3.16 48.63 2.28 30.40 46.88 Charpy 7.50 “ 6 15.81 3.09 48.85 2.47 32.96 50.

60 Charpy 7.50 Series Specimen width b0 Specimen thickness a0 Cross-section Impact energy Impact energy Impact resistance Work contents n = 6 mm mm mm? J % kJ/m? J x 15.75 3.118 49.12 2.35 31.34 47.86 7.50 s 0.2552 0.02317 0.622 0.10 1.32 2.23 0.00 ? 1.62 0.74 1.27 4.22 4.22 4.66 0.00 Zwick/Roell Pendulum Impact Tester . 1-Jun-15 M/c Model No 5113. Ref No A466690. Force 7.5J Material: NYLON 66 Specimen width b0 Specimen thickness a0 Cross-section Impact energy Impact energy Impact resistance Type of test, PIT Work contents Legends Nr mm mm mm? J % kJ/m? J “ 1 15.35 3.19 48.97 3.61 48.18 73.80 Charpy 7.

50 “ 2 16.1 3.19 51.36 4.88 65.02 94.95 Charpy 7.50 “ 3 16.05 3.22 51.68 4.64 61.83 89.73 Charpy 7.50 “ 4 16.1 3.2 51.52 4.50 60.05 87.42 Charpy 7.50 “ 5 16 3.18 50.88 4.66 62.14 91.60 Charpy 7.50 “ 6 15.98 3.2 51.14 4.07 54.32 79.67 Charpy 7.50