CA3 - J. Awerbuch Chapter I. Internal Forces, Stresses, and...

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Chapter I. Internal Forces, Stresses, and StrainsO MEM 230 J. Awerbuch Example R.2: Resultant Internal Forces and Moments: Beams are often subjected simultaneously to inclined loading and axial loading. Such a case is known as 'combined loading' of beams. In that case, the stress distribution across the cross-section of the beam varies linearly along the y., and z- axes of the beam as shown in Figure R.2. Under such loading, the cross-section is subjected to normal stress, ax' only. Let's assume that the normal stress has the form: a v = a + by + cz and it is given that the stresses at the comers A, B, and Care: cTxA = 12ksi; axB = 8ksi; a..c = 12ksi; Determine: a. The stress, a xD' at the comer D; b. The resultant internal axial force, Fx; The resultant internal bending moment about the y- axis, M v; The resultant internal bending moment about the y- axis, M z; d. y y B c a A - axD '"'_. I~ 4in. ~ Figure R.2. Bending stress distribution in a beam subjected to 'combined loading' rA
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CA3 - J. Awerbuch Chapter I. Internal Forces, Stresses, and...

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