Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is Mean Stress?
💡 Hint: Think about the average in a simple sense.
Question 2
Easy
Define Alternating Stress.
💡 Hint: Consider how much the stress varies.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the process of calculating Mean Stress?
💡 Hint: Consider the average in terms of stress values.
Question 2
The Goodman Line helps in predicting fatigue failure using which material strength?
- Yield Strength
- Ultimate Strength
- Proportional Limit
💡 Hint: Relate this to the highest strength a material can support.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A rotating shaft experiences an alternating stress of 75 MPa and a mean stress of 120 MPa. Given its yield strength is 300 MPa and ultimate strength is 600 MPa, determine if the shaft meets safety regulations using the Goodman and Soderberg criteria.
💡 Hint: Use the right equations for both criteria.
Question 2
A bicycle frame is subjected to cyclical loading. With a maximum load of 3000 N and minimum load of 100 N, determine the mean and alternating stresses, then evaluate whether the frame design uses the Soderberg Line effectively.
💡 Hint: Do not forget to use the definitions for mean and alternating stresses properly.
Challenge and get performance evaluation