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A close-coiled helical spring has its free length as 120 mm. It absorbs 40 N-m of energy when fully compressed and the coils are in

A close-coiled helical spring has its free length as 120 mm. It absorbs 40 N-m of energy when fully compressed and the coils are in contact. The mean coil diameter is 80 mm. Find the diameter of the steel wire required and the number of coils if the maximum shear is stressed is to be 120 MPa. G=82 GPA.

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Ans U 40Nm Free length 120mm D 80mm R 40mm Ymax 120Mpa G 80Gpa 8200... blur-text-image
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