Question

Any material that is to be used in an industrial process has to be tested before use in order to observe the mechanical properties of that material. A ductile material is useful for the manufacture of a shaft of a turbine.”
A material engineer conducted a tensile test on a specimen of stainless steel. Its diameter is 35mm with a initial length of 100mm.The following observations were recorded after the test with final length = 120 mm, final diameter = 25mm and the yield load = 4200N. Calculate:                                      [6 Marks]
i. Percentage elongation on the rod.                                                  
ii. Percentage reduction in area.                                                        

Answer 1