2 - Physical significance of strain components
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
Define radial longitudinal strain (ϵ_rr).
💡 Hint: Think about how the radial lines in a cylinder change during inflation.
What does hoop strain (ϵ_θθ) measure?
💡 Hint: Consider the circular direction around the cylinder.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does ϵ_rr represent in a cylindrical object?
💡 Hint: Focus on the radial aspect of deformation.
True or False: Hoop strain (ϵ_θθ) can exist even when no radial displacement occurs.
💡 Hint: Think about pressure systems.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A cylindrical concrete column is subjected to an axial force along its length and a lateral pressure from the environment. Calculate the radial and hoop strains, assuming the column radius increases with deformation.
💡 Hint: Remember Poisson’s ratio can link radial and hoop strains.
Design a thin-walled pressure vessel and present the critical factors affecting the strain in both radial and circumferential directions as internal pressure increases.
💡 Hint: Look into classical thin-walled approximations for your approach.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.