Tuesday, January 7, 2014

Engineer Paper

Introduction This is an experiment to determine the mechanical properties by victimization pliant and callus test. In this case we have to come the atomic adhere and structure affect the mechanical shoes of material. We strike to know contrasting crystal structure and different coordination and different bonding type will affect the properties of material. We pee to the primary(prenominal) five properties of the material, toughness, Youngs modulus, yield specialism, ductility, and ultimate pliable strength. We pick up to know the relationship between the properties of material. We also need to know how hardness relate to those properties. In this experiment, we will buckle under out relationship for for each one of material with their situation and potential flat coat why those property keep to us. Such as stronger bonding type will burden high tensile strength and high yield strength. The disruption will increase the ultimate stress of the material. Youngs modulus are metric the harshness of the material that relate to the bonding of the material. Ductility indicates the ability to tractile deformed. Procedure After the introduction, it is cartridge clip to start experiment now. There were cardinal different materials in front of us.
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They are brand, brass, copper, aluminum, polycarbonate, polyethylene, and polystyrene First part, we careful the hardness by using Rockwell Hardness Test, outperform HRE. This gist a 1/8 inch diameter steel ball indenter with ampere-second kg load.We come out material on the HRE scale and twisted the wheel until the green b utton flashes. and so apparatus starts wor! k and drilled the material. When the machine stabilized and take the can a stable add together after beep, we place down the number on the machine. We did this for each material three quantify and on different surface, and then we calculate the average hardness for each material that we test on. Second part we measured the width, thickness, and bore length of the material by use calipers. because we put material on the instron tech machine. First we hire the...If you hope to get a full essay, order it on our website: OrderCustomPaper.com

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