4. The composite bar is initially stress-free. Calculate the stress in each material and indicate tension or compression if the temperature has increased to 25°C. Consider that the walls are unyielding and suitably braced to prevent buckling. Use 2 decimal places. 400 mm 800 mm 500 mm Aluminum A = 1400 mm? E = 75 GPa a = 23 x 10-6/°C Steel Bronze A = 800 mm² E = 200 GPa a = 10.7 x 10-6/°C A = 2500 mm? E = 85 GPa a = 19 x 10-6/°C 2

4. The composite bar is initially stress-free. Calculate the stress in each material and indicate tension or compression if the temperature has increased to 25°C. Consider that the walls are unyielding and suitably braced to prevent buckling. Use 2 decimal places. 400 mm 800 mm 500 mm Aluminum A = 1400 mm? E = 75 GPa a = 23 x 10-6/°C Steel Bronze A = 800 mm² E = 200 GPa a = 10.7 x 10-6/°C A = 2500 mm? E = 85 GPa a = 19 x 10-6/°C 2

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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