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reportonms-170620111046

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  1 Report on Tensile, Impact and Hardness Testing of Mild Steel Submitted to Dr. Athar Ibrahim Submitted by Arif Ali MME-12-01   Sarmad Saeed MME-12-02   Muhammad Faisal Maqsood MME-12-20 Sania MME-12-26 Muhammad Zubair MME-12-29 Gulfam Hussain MME-12-30 Institute of Advanced Materials, BZU Multan    2 Abstract The main purpose of this report is to study the mechanical properties and failure mode of mild steel. Three types of standard tests i.e. tensile test, impact test, and hardness test were conducted on the standard specimens of mild steel. From the tests, results were obtained; Tensile strength, Impact strength, and hardness were calculated. It was observed that Tensile Strength, Impact Strength and Hardness of MS specimen were 1450.833 N/mm², 29.5 J & 59.25 HRB.  3 EXPERIMENT NO. 01 1.1. Objective To conduct a tensile test on a Mild Steel specimen 1.2. APPARATUS I.   Universal Testing Machine (UTM) II.   Mild Steel specimens III.   Scale IV.   Vernier Caliper 1.3. DIAGRAM Figure 1.1. Tensile Testing Machine  4 Figure 1.2. Tensile Specimen Dimensions Figure 1.3. Tensile Testing specimen before testing Figure 1.4. Tensile Testing specimen after testing 1.4. THEORY Tensile testing is one of the most basic tests for engineering which provides valuable information about a material and its associated mechanical properties. These properties can be used for design and analysis of engineering structures, and for developing new materials that  better suit a specified use. In this test ends of test piece are fixed into grips connected to a straining device and to a load measuring device. If the applied load is small enough, the deformation in the solid body is entirely elastic. This elastically deformed body will return to its srcinal shape when the load is removed. The initial portion of the S-S curve will show the elastic behavior. The stress below which the deformation entirely elastic is known as the yield strength of material. As the body is loaded beyond this limit i.e. yield stress, the body will deform permanently showing that the  body is plastically deformed. In some material the onset of plastic deformation is denoted by a
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