Essays on Tensile Testing of Metallic Materials Assignment

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The paper "Tensile Testing of Metallic Materials " is a good example of a finance and accounting assignment. Tensile testing of metallic materials is used to analyze metallic properties that are present at ambient temperature. Tensile testing procedures offer engineers data that is quantitative for design work. Tensile testing is a common procedure for determining the mechanical properties of materials in order to provide engineers with quantitative data required for instance in design work. The test entails the straining of the metallic test piece in an environment of tension in order to produce a fracture, for the key intention of determining various mechanical properties that exist in metals.

The metallic samples are gripped in order to align the specimen in an axial direction for the purpose of minimizing bending. The testing procedures are usually carried out using two methods, foremost is the controlling of the strain rate for the purpose of minimizing the strain rate variation, the second method involves the determination of the stress rate. The choice of the experimental method should properly be organized in order to proper estimations that can portray metallic properties. The engineering strain-stress curve is created by the calculation of the applied force and the specimens cross-sectional area in N/m2.The area of the original cross-section and the calculated strain are divided by the elongation over the original length of the original specimen, which has features of being dimensionless (Callister, 2007). A distinctive stress-strain curve is revealed in the figure below;     (a) (b) Fig 1 (a) – 1, Callister, 2007, page 145 on engineering stress-strain curve, M and F indicate the ultimate fracture and tensile stress respectively.   In the figure illustrated above, the proportion of the straight line signifies the limit of elastic deformation which is usually reversible when the load that is applied is removed.

The elasticity limit is described by the Yield stress level (y) which found at the connection between the strain and stress curve, where a channel is drawn parallel to the curves linear proportion with a strain offset of 0.002, which matches up a change in length of 0.2%.

Works Cited

Avner, Sidney H. Introduction to Physical Metallurgy, New York: McGraw-Hill, inc.

Askeland, D.R.. The Science & Engineering of Materials, 3rd Edition. Chapman & Hall.

1996,pgs 140 – 149.

Callister, W.D. Materials Science & Engineering – An Introduction, London; John Wiley & Sons, 1995.

Krutasova, A. Reliability of Power Equipment Metal. Energoatomizdat; Moscow, Energoatomizdat, 1981.

http://www.me.ust.hk/~mejswu/MECH141/MECH141F.pdf

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