556. AT beam supports the three concentrated loads shown in Fig. P-556. Show that the NA is 70 mm from the top and that INA = 15.52 x 10 mm. Then use these values to determine the maxí- mum value of P so that o, < 30 MPa and o, < 70 MPa. %3D Ans. P = 1.41 kN 80 mm 20 mm 4P 2 m 2 m 1 m 1 m 160 mm R2

556. AT beam supports the three concentrated loads shown in Fig. P-556. Show that the NA is 70 mm from the top and that INA = 15.52 x 10 mm. Then use these values to determine the maxí- mum value of P so that o, < 30 MPa and o, < 70 MPa. %3D Ans. P = 1.41 kN 80 mm 20 mm 4P 2 m 2 m 1 m 1 m 160 mm R2

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.9.30P

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