Lecture 3 pdf - Ahmed Nagib
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Introduction to Machine Design Lecture 3 Dr./ Ahmed Mohamed Nagib Elmekawy March 3, 2016 1
Transcript of Lecture 3 pdf - Ahmed Nagib
BearingStressinconnections
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• Calculate the average normal stress in the links connecting a) B and D b) C and E
Torquestresssummary
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Shear Stress𝜏 = 𝐺𝛾= %&' =
()%*,-
𝜏 : Shear Stress 𝑐: shaft radius𝐺: Modulus of rigidity 𝑑: Shaft diameter𝛾: Shear Strain𝐽 : Polar moment of inertiaFor a hollow circular shaft of inner radius c1 and outer radius c2,the polar moment of inertia is
∅: Angle of Twist