1 - Concept of Stress and Strain
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Practice Questions
Test your understanding with targeted questions
What is the formula for stress?
💡 Hint: Look for how the force is dealt with in relation to area.
Define strain.
💡 Hint: Think about how length changes in relation to its starting point.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does Hooke’s Law state about stress and strain?
💡 Hint: Recall the definition of Hooke's Law.
True or False: Poisson's ratio is the ratio of lateral strain to longitudinal strain.
💡 Hint: Think about how materials deform under stress.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A tensile tester pulls a sample of aluminum with an original length of 50 cm and a cross-sectional area of 0.002 m². If a load of 3000 N is applied, calculate the elongation of the sample if Young's modulus is 70 GPa.
💡 Hint: Ensure to convert GPa to Pa for the calculation.
A concrete beam subjected to a compressive load shows a maximum normal stress of 18 MPa and a minimum normal stress of 6 MPa. Calculate the average stress and the radius of Mohr's Circle.
💡 Hint: Utilize the formulas for average stress and radius effectively.
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