Explain how fatigue failure occurs even if the material does not see overall stress levels higher than the yield strength. What is the difference between failure of a material by creep and that by stress rupture?
【简答题】用所给单词的适当形式填空。 1. December is the ________ (twelve) month of a year. 2. As we all know, the silk dress feels ________ (soft). 3. She said to the twins, 'Help ________ (you) to some fruit.' 4. You shoul...