14. What effects does the Johnson Cook constitutive material model take into account? a) Hardening, temperature and stif

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14 What Effects Does The Johnson Cook Constitutive Material Model Take Into Account A Hardening Temperature And Stif 1 (32.26 KiB) Viewed 52 times

14. What effects does the Johnson Cook constitutive material model take into account? a) Hardening, temperature and stiffness b) Hardening, strain rate and temperature c) Temperature, strain rate and stiffness d) Strain rate, temperature and point of failure (1 mark) 15. Which of the following statements is correct? a) Wear rate decreases by increasing the material hardness b) Wear rate increases by increasing the material hardness c) Wear rate is not dependant on the material hardness d) None of the above (1 mark) 16. What type of load causes a fatigue crack initiation? a) Impact load b) Static permanent load c) Dynamic cyclic load d) Sudden compressive load