Please send the answers within 1 hour. Thanks.
Posted: Thu May 05, 2022 5:57 pm
Please send the answers within 1 hour. Thanks.
Members AB and CD are elastic. Member BD is rigid and can rotate around pivot point E. The cross-section area of AB and CD is 100 mm² and 200 mm², respectively. Young's modulus of AB and CD is 200 GPa and 100 GPa, respectively. Thermal expansion coefficient of AB and CD is 12.5 x 10-6/°C and 16.5 x 10-6/°C. respectively. If there is a temperature increase of 36°C. What is the average normal stress in rods AB and CD. respectively?
330 mm A E B k - 240mm ★ 150mm C D 210 mm
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330 mm A E B k - 240mm ★ 150mm C D 210 mm