Civil Engineering Structural Concentration Essay

Civil Engineering Structural Concentration - screen ExampleBasically, the properties and characteristics of a polymer depend upon its structure. The strength of the plastics screw be determined from a measurement know as the Youngs modulus. Youngs modulus is the ratio of stress over strain, i.e. elasticity and is mensural in units of Pascal (Pa). Unfilled plastics usually have a Youngs modulus of less than 3.5 grade point average at room temperature (Characterization and Failure Analysis of Plastics, 53). Their strength is also temperature sensitive and can be affected by environmental factors as well. The strength can be improved by utilise fillers and fibers as reinforcements in order to enhance the mechanical properties of the plastic. The tensile strength of most plastics is less than 35 MPa. A lesser tensile stress means a lesser rigidity (MatWeb, n.pag.) but this can be increased by using resin of higher Youngs modulus so as to provide with better reinforcements. The design ing of the plastic also has a significant role in up(p) the strength of the plastic (Characterization and Failure Analysis of Plastics, 53).Lower quality or recycled plastics have a lower tensile strength and can break at a very low magnitude of stress. This is because after recycling the plastics are down cycled causing them to become less rigid and more formless thereby causing them to break at a lower stress level. The load on the supra hanger is caused by hanging vesture. In this case the force or load is caused by the weight of the clothes which depends upon the thickness of the fabric. On average clothes weigh about 2 to 5 pounds (lbs) with the weight be centered at the middle point of the hanger. Continuous weight on one point of the hanger results in breakage. The fracture shown in Figure 1 illustrates that breakage has occurred midway along the length of the hanger leaving 18.5 cm on both sides.The hanger being