【Daily Question】Theoretical Foundation 2020.04.20

2020-04-20View Original

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Multiple-choice question: The stress state of the element is shown in Figure (a); the direction of α1 is ( ). A. In the first and third quadrants, with an angle of less than 45° to the x-axis. B. In the first and third quadrants, with an angle of less than 45° to the y-axis. C. In the second and fourth quadrants, with an angle of less than 45° to the x-axis. D. In the second and fourth quadrants, with an angle of less than 45° to the y-axis. Answer: A. Hint: Extra rewards will be given to those who can explain the solution process; the answer can be found in the response!

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【Daily Question】Theoretical Foundation 2020.04.20

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