Rail car brake caliper Assignment Example | Topics and Well Written Essays - 500 words

Rail car brake caliper - Assignment Example Non-Ferrous metals are costly. Yield strength refers to the minimum tension that yields plastic deformations (Somaiya, Wieffering & Blaine, 2008). Tensile strength refers to minimum stress essential for the failure of the material. Fracture resistance is significant in measuring strain degree. Describes the resistance of a material to fracture and is measured using the aggregate energy contained in the material (Somaiya, Wieffering & Blaine, 2008). In the design of the brake caliper, toughness is important since strong materials absorb more energy compared to fragile ones. Tension tests include; static tension tests, which define the infringement point of the material and compression tests that determine the material’s reaction to crushing (Somaiya, Wieffering & Blaine, 2008). In general, tensile testing determines the strength and amount of stretch in the material. The failure point is the ultimate strength. Torsion test measures the relationship between stress-strain of a material. Hardness tests, which include Brinell hardness test, which uses a steel ball with enormous force. The applied weight for harder materials like iron and steel is about 3000kg while that of softer materials like aluminium alloys and copper is about 500kg (Somaiya, Wieffering & Blaine, 2008).Vickers hardness test is obtained by dividing force by the external area. Rockwell hardness test measures the penetration depth in the material to determine the hardness. Scratch test involves scratching harder materials to rank their hardness. Harder materials scratch the softer ones. Mohs hardness scale is applicable. Rebound test utilizes changes in potential energy to determine the hardness. Indentation tests utilize the impression of force on the material to test for hardness. Aluminum oxides make calipers abrasives that boost friction because of its low density. Steel filler recommended