196_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 196_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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190 CHAPTER 2 Axially Loaded Members Problem 2.6-15 Acting on the sides of a stress element cut from a bar in uniaxial stress are tensile stresses of 10,000 psi and 5,000 psi, as shown in the figure. (a) Determine the angle and the shear stress and show all stresses on a sketch of the element. (b) Determine the maximum normal stress max and the maximum shear stress max in the material. | | 2.25 MPa. (c) WHAT IS if 2 ? Numerical values only: | | x sin cos | | x cos 2 x sin cos 2 x cos 2 sin 2 cos or tan 2 63.43° 90° 26.6° NOTE: For 26.6° and 63.4°, we find 0.98 MPa and 1.96 MPa. Thus, ` t 0 s 0 ` 2 as required. ; ` t 0 s 0 ` 2 The shear stress on the joint has a negative sign. Its

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