Compose a 750 words essay on Materials. Needs to be plagiarism free!Download file to see previous pages... In this case, a curve will display the manner in which the material reacted towards the force

Compose a 750 words essay on Materials. Needs to be plagiarism free!

In this case, a curve will display the manner in which the material reacted towards the forces being applied to it. More often than not, a point of failure is established in a material. This point is referred to as the Ultimate Strength (UTS). Considering Hooke’s law, tensile testing, one will realize that in the initial part of the test the link between the force applied and the specimen’s elongation will be linear. For the region that is linear, the Hooke’s law will be obeyed by the line and the stress to strain ration will be a constant (E= ?/?) (Bagramov, 2007). In this relation, E is the line’s slope, ? represents the strain proportion, and ? is the Young’s Modulus or the elasticity Modulus. The strain and stress levels of a material will also be determined. Stress is the measurement that is absolute in length change. It is the ration of the length change to length that was original. This is given by L-L0/L0. On the other hand, strain is considered to be the strain in the resistance that is internal of a material to the effects of an external force that are distorting. The forces that are countering appear to return atoms to the positions that are normal. This means that the total developed resistance is equal to the load that is external. The resistance is said to be stress. Young’s Modulus involves the stiffness measurement and only applies to the region that is linear (Bonjour, 2008). When the curve stops to be linear and makes a deviation from the straight like Hooke’s law fails to apply and a condition known as permanent deformation will occur. Such a point is referred to as the proportional or elastic limit. In a tensile test, after the elastic limit, a material will reacts plastically towards the increment in the stress or load. Procedure. The Zwick Z010 Universal machine for mechanical testing was se up using the EAT104 2012.zpv program. The notes on the manner in which the test was done was recorded. The appropriate test conditions included a test speed of 6mm/min, test temperature of 21oC, Load cell of 10kN, a wedge grips, and a long travel extensometer approximately 50mm. The Glass filled test of Nylon was secured symmetrically, and centrally between the grips. The program was started, and the test stop at the instant sample fracture. The second and he third steps were repeated for the unreinforced material of nylon. There was no need to advance the test over the strain in which the composite sample did fail. In this case, the fail may occur at a 5% strain. In this case, the tensile test may be stopped at a similar strain value. Data was collected in terms of tensile stress against tensile strain. Results. The data collected was recorded in a table 1. Table 1. Stress Strain X Stress Strain N/mm? N mm N mm 72.46 1451.37 5.8 145 12.6 464.03 9294.36 2.9 3100 4.1 418.88 8390.03 6.9 2060 10.2 363.02 7271.18 1.2 1020 4.0 Discussion. The graph is a representation of Hooke’s law. According to this law the extension is directly proportional to the applied force unless the elastic limit is exceeded (Blatt 2004). It is evidenced from the graph that after exceeding the elastic limit, a permanent deformation is observed. In this case, the extension of the material fails to be directly proportional to the load applied.