9.1 - Introduction
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What does the first law of thermodynamics state?
💡 Hint: Think about energy conservation.
Define strain energy.
💡 Hint: Connect it with deformation processes.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the essence of the first law of thermodynamics in structural analysis?
💡 Hint: It deals with energy changes.
Virtual work can be defined as what?
💡 Hint: Think about the definitions of virtual forces.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A structural beam supports a load of 10 kN. Calculate the strain energy stored in the beam if its length is 3 m, area is 40 cm², and E is 200 GPa.
💡 Hint: Use U = (P^2 L) / (2AE) directly in your calculations.
Explain how you would apply the Virtual Work method to assess bending in a simply supported beam with a central load.
💡 Hint: Ensure that you maintain equilibrium for both real and virtual loads.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.