10.1.1.2 - Force-displacement (or stress-strain) relations
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Practice Questions
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What is a statically indeterminate structure?
💡 Hint: Think about how many equations you can write for forces versus how many forces there are.
Why is equilibrium important?
💡 Hint: Consider what happens if these forces are not balanced.
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Interactive Quizzes
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What is the defining characteristic of a statically indeterminate structure?
💡 Hint: Think about the balance of forces.
True or False: Compatibility of displacements means members in a structure can have gaps.
💡 Hint: Trust your understanding of connected structural components.
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Challenge Problems
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A two-span beam is subjected to a central load. Derive the internal force distribution and plot the stress-strain relations.
💡 Hint: Balance the forces and consider the moments at the supports.
Analyze a frame structure under asymmetric loads and assess how redundancy aids stability.
💡 Hint: Use virtual methods to visualize how the frame reacts to loads.
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