lec2 - L2 Concept of Stress and Strain cont. Last class...

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Unformatted text preview: L2 Concept of Stress and Strain cont. Last class Syllabus Definition of stress Normal stress Shearing stress Bearing stress Stress in Two Force Members Axial forces on a two force member result in only normal stresses on a plane cut perpendicular to the member axis. Transverse forces on bolts and pins -> only shear stresses on the plane perpendicular to bolt or pin axis. either axial or transverse forces may produce both normal and shear stresses with respect to a plane other than one cut perpendicular to the member axis. Stress on an Oblique Plane Normal component: Tangential component: sin P V = cos P F = At equilibrium: distributed forces (P) on any plane = force ( P). cos sin cos sin cos cos cos 2 A P A P A V A P A P A F = = = = = = Stress on an Oblique Plane (cont.) average normal and shear stresses on the oblique plane are: Which plane produces maximum normal stress ?...
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lec2 - L2 Concept of Stress and Strain cont. Last class...

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