Analysis On Bicycle Crank Arm Using Tensile Test

Shaifatul Shima, Shaari (2010) Analysis On Bicycle Crank Arm Using Tensile Test. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The mechanical properties of a material are directly related to the response of the material when it's subjected to mechanical stresses. The results of tensile tests are used in selecting materials for engineering applications. Tensile properties frequently are included in material specifications to ensure quality. Tensile properties often are measured during development of new materials and processes, so that different materials and processes can be compared. Since characteristic phenomena or behavior occur at discrete engineering stress and strain levels, the basic mechanical properties of a material are found by determining the stresses and corresponding strains for various critical occurrences. A wealth of information about a material's mechanical behavior can be determined by conducting a simple tensile test for bicycle crank arm of uniform cross-section is pulled until it ruptures or fractures into separate pieces. Finally, tensile properties often are used to predict the behavior of a material under forms of loading other than uniaxial tension. This mechanical testing was done by using Instron 8802 Dynamic Machine. Based on the initial geometry of the sample, the engineering stress-strain behavior (stress-strain curve) can be easily generated from which numerous mechanical properties, such as yield strength and elastic modulus, can be determined. The major parameters that describe the stress- strain curve obtained during the tension test are the tensile strength (UTS), yield strength or yield point (y), and elastic modulus (E). By using the X-Ray Diffractormeter, it can determine the types of material which include in the bicycle crank arm. .

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