Determine the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 1.9 x 10-4 mm and a crack length of 3.8 x 10-2 mm when a tensile stress of 140 MPa is applied?

Determine the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 1.9 x 10-4 mm and a crack length of 3.8 x 10-2 mm when a tensile stress of 140 MPa is applied?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.7.5P: Determine the strain energy per unit volume (units of psi) and the strain energy per unit weight...

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Question

(a.) Determine the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 1.9 x 10^-4 mm and a crack length of 3.8 x 10^-2 mm when a tensile stress of 140 MPa is applied?

(b.) By what factor (e.g., 3X) has the remote stress been amplified at the crack tip?

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