(a) Calculate the load and resistance factors for a reliability of 99% when the strength has a mean value of 65.4 MPa and COV 22%; the stress has a mean value 32.7 MPA and COV 11%.
(b) Calculate the resulting safety factor and compare it to the safety factor in Exercise 1.6 and comment on your finding.
Exercise 1.6
(a) Calculate the load and resistance factors using the data of Exercise 1.4 and a reliability of 99%.
(b) Calculate the resulting safety factor.
Exercise 1.4
Consider a material with measured strength values F given in Table 1.2. Assume the expected stress values to be one-half of the values in Table 1.2. Calculate the safety factor and the reliability of the system.
