1 m m will be (Young's modulus o elasticity for copper … Stress, Strain and Young's Modulus are all factors linked to the performance of a material in a particular setting. However, nowadays fishing has become somewhat of a sport,hobby, or to some, a profession. Not the one? or The tensile modulus of copper is 17 x 10^6 psi … modulus for the copper. Strain = Change in Length / Original Length. © 2003 - 2015 Marked by Teachers. The elastic modulus of copper alloys ranges from 16 to 20 million pounds per square inch (about 110 to 138 kMpa). In order to achieve an adequate number of results from each experiment to make a fair analysis and conclusion to the investigation, I will need to take a minimum of eight readings (i.e the nylon should withstand at least 800g/7.849N). CRC Materials Science and Engineering Handbook, p.260, CRC Materials Science and Engineering Handbook, p.270-274, Handbook of the elements, S. Ruben, 2 nd printing (1987), Open Court Publishing. If the ratio of diameters, lengths and Young's modulus of steel and copper wires shown in the figure are p, q and s respectively, then the corresponding ratio of increase in their lengths would be (a) 5q/(7sp 2) (b) 7q/(5sp 2) (d) 2q/(5sp) (d) 7q/(5sp) The Young's Modulus of copper wire is 120 * 109 Pa. Young's modulus of copper wire . The reference wire and test wire are hung from the ceiling. Mechanics of Materials 23(1996), p.314: density: 8960 kg/m^3: 25 degrees C: Handbook of the elements, S. Ruben, 2 nd printing (1987), Open Court Publishing Procedure. For 20 gauge copper wire the following experimental results produced a Young's Modulus constant of 6063 MPa, or 6.063 GPa. where E is expressed in N m-2 or Pascal (Pa). Young's Modulus - Tensile Modulus, Modulus of Elasticity - E. Young's modulus can be expressed as. off individually and a pin with plasticine to attach to the end of the over hanging ruler. Cite this Simulator: Developed by Amrita Vishwa Vidyapeetham & CDAC Mumbai. The elastic modulus of steel is additionally called young's modulus usually. It looks like the force-extension graph shown earlier, but this graph will be valid for ANY sample of copper ⇒ O-P on the graph represents the range of tensile stree for which the copper obeys Hooke's law (d/2)2 = ?d2/4, Young's modulus of the copper wire is given by E = Fl/Ae = mgl/(?d2/4)e = m/e x 4gl/?d2 = slope of graph x 4gl/?d2 Procedure 1.To measure the diameter of the wire at two end and the. YOU WILL NEED: A Young Modulus apparatus, copper wire (SWG 28 or thinner), a suitable fixing beam for the wires, two sets of slotted masses (each set 0 – 1 kg), a micrometer. If there is slight deformation in steel due to contraction and expansion it will come back to its original position. Young’s Modulus: Application. Under elastic conditions, a modulus of elasticity of a wire, called the Young modulus E, is defined as the ratio of the tensile stress applied to a body to the tensile strain produced. A copper rolled wire 10 m long and 1.5 mm diameter when supporting a weight of 350 N elongates 18.6 mm. This can be expanded to test other wires or materials and helps students with their measurement techniques. Aim: To study the stress/strain behavior of copper wire and estimate the Young’s modulus of copper. Young's modulus describes tensile elasticity along a line when opposing forces are applied. Steel is preferred over copper … 0: 2. This student written piece of work is one of many that can be found in our AS and A Level Mechanics & Radioactivity section. The Young's modulus in the macroscopic mechanics was determined when the material is on elastic stage. Research a value for the Young modulus of copper and comment on your result. While this variation is quite a lot less than that for strength and conductivity, it should not be ignored. Σ＝exε. A gentle oxidising agent (usually hydrogen peroxide). In industrial constructions steel is preferred over copper. This article outlines the major alloy types and typical applications such as condensors, automotive, marine, etc. The wire is stretched by Δl = 2.25 mm = 0.00225 m. Force = 136 N. We know that Youngs Modulus = Stress / strain. Theory. Copper is tough and ductile, but is valuable due its ability to conduct electricity. 0: 0. Therefore, when a material has a larger the value of. is applied to the end of a wire with cross-sectional area, Under elastic conditions, a modulus of elasticity of a wire, called the Young modulus. E is a constant when Δl is small according to the Hooke’s Law which stated that the stress applied to any solid is proportional to the strain it produces for small strain. Historical/Social/Environmental/Economic Factors Fishing has always been a significant practice for countless years. Stage 2 : Plastic deformation In this stage, the stress is not directly proportional to the strain and and a small amount of stress can produce a large strain. 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