Question: In the square structure of Exercise 6.3.5, the diagonal struts simply cross each other. We could also try joining them at an additional central node.

In the square structure of Exercise 6.3.5, the diagonal struts simply cross each other. We could also try joining them at an additional central node. Compare the stresses in the two structures under a uniform horizontal and a uniform vertical force at the two upper nodes, and discuss what you observe.

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