Tensile Test Lab Report
Introduction
The construction materials course is an essential part of civil engineering as the strength of all structures and constructions depends on the material used. The tension test is one of the laboratories which help students develop their knowledge in this course by practice. During the laboratory a Tinius Olsen Tension Test equipment was used, and the test samples were from low and high carbon steel and timber with grains parallel and perpendicular to the load.
Test equipment and materials
The test equipment used during the laboratory is one of the Benchtop Materials Testing Machines made by Tinius Olsen. This machine can test different types of materials and it is provided with software which gives the opportunity to users to fully control the system. Machine two different types of attachments: the first is to fix the metal samples, and second is to hold timber samples. The rate of loading can be controlled by the software.
The materials used are trammel to measure the dimensions of samples, the felt pen, 4 samples of timber with grains parallel to the load and 2 samples of timber with grains perpendicular to the load, high-carbon steel, low-carbon steel and aluminium specimens.
Results
Tables | Low-carbon steel | High-carbon steel | Aluminium | Dimensions, mm | 23.2 | 26.6 | 23.0 | Cross-sectional area, mm2 | 19.7 | 20.0 | 20.0 | Load at elastic limit, kN | 14.5 | 12.5 | 5.13 | Maximum load, kN | 15.2 | 19.2 | 5.90 | Failure load, kN | 10.8 | 16.5 | 3.88 | Reduction in area, % | 0.57 | 0.123 | | Area of failure, mm2 | 8.50 | 14.7 | | Elongation at failure, % | 13.3 | 10.9 | |
Table 1 Tension Tests: Results for metals | Load parallel to grain | Load perpendicular to grain | Specimen # | 1 | 4 | 10 | 11 | j | g | Dimensions, mm | 90.9 | 91.4 | 91.1 | 91.5 | 86.1 | 86.5 | Cross-sectional area, mm2 | 168 | 135 | 121 | 109 | 170 | 157 | Load at elastic limit, kN | 0.700 | 0.400 | 0.250 | 0.300 | 0.105 | 0.200 |
The construction materials course is an essential part of civil engineering as the strength of all structures and constructions depends on the material used. The tension test is one of the laboratories which help students develop their knowledge in this course by practice. During the laboratory a Tinius Olsen Tension Test equipment was used, and the test samples were from low and high carbon steel and timber with grains parallel and perpendicular to the load.
Test equipment and materials
The test equipment used during the laboratory is one of the Benchtop Materials Testing Machines made by Tinius Olsen. This machine can test different types of materials and it is provided with software which gives the opportunity to users to fully control the system. Machine two different types of attachments: the first is to fix the metal samples, and second is to hold timber samples. The rate of loading can be controlled by the software.
The materials used are trammel to measure the dimensions of samples, the felt pen, 4 samples of timber with grains parallel to the load and 2 samples of timber with grains perpendicular to the load, high-carbon steel, low-carbon steel and aluminium specimens.
Results
Tables | Low-carbon steel | High-carbon steel | Aluminium | Dimensions, mm | 23.2 | 26.6 | 23.0 | Cross-sectional area, mm2 | 19.7 | 20.0 | 20.0 | Load at elastic limit, kN | 14.5 | 12.5 | 5.13 | Maximum load, kN | 15.2 | 19.2 | 5.90 | Failure load, kN | 10.8 | 16.5 | 3.88 | Reduction in area, % | 0.57 | 0.123 | | Area of failure, mm2 | 8.50 | 14.7 | | Elongation at failure, % | 13.3 | 10.9 | |
Table 1 Tension Tests: Results for metals | Load parallel to grain | Load perpendicular to grain | Specimen # | 1 | 4 | 10 | 11 | j | g | Dimensions, mm | 90.9 | 91.4 | 91.1 | 91.5 | 86.1 | 86.5 | Cross-sectional area, mm2 | 168 | 135 | 121 | 109 | 170 | 157 | Load at elastic limit, kN | 0.700 | 0.400 | 0.250 | 0.300 | 0.105 | 0.200 |