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Lab Report example - torsion
Engineering and Construction
Pages 6 (1506 words)
EN1048 Engineering Applications Name Institution Abstract In this experiment the modulus of rigidity and yield shear stress are determined for specimens of mild steel and brass of circular cross section. In this case, the shear property was used to measure the maximum torque measured at the notional strength, rigidity and the shear strength by ?…
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Fenner and other (1984) indicated that the modulus of rigidity is given by the ratio of stress to shear strain often represented mathematically as ?/?. As widely cited, modulus of rigidity is essential in measuring the material’s shear stiffness and it is known to be analogous to Young’s modulus for any elastic behaviour in compression or tension (Benham, Crawford & Armstrong, 1996). Given that a ductile material component useful in providing shear, an individual need to note that the maximum shear stress is safety, which is less than the materials yield shear stress (?y). However, a brittle material the criterion of failure is based upon its tensile stress (Gere &Timoshenko, 1984). Research indicate that the theory of torsion often give the torque in form of rotation as (1) The equation 1 above is often derived from Hooke’s law and it is also valid for the shear stresses though somewhat lower than shearing proportional limit (Case, Chilver & Ross, 1993). ...
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