(i) Using analytical method of transformation equations; (a) The orientation of principal planes and the values of max. and min. principal stresses. Also sketch the principal planes on a rotated...

(i) Using analytical method of transformation equations; (a) The orientation of principal planes and the values of max. and min. principal stresses. Also sketch the principal planes on a rotated stress element along-with the max. and min. principal stresses on the respective planes Note:Use R=78

Extracted text: R MPa YA 25° • (2R) MPa (0.5R)MPa →X