PROBLEM 9.95 Using Mohr’s circle, determine the moments of inertia and the product of inertia of the L76 ×51 ×6.4-mm angle cross section of Problem 9.74 with respect to new centroidal axes obtained by rotating the xand y axes through o45 clockwise. SOLUTION From Problems 9.74 and 9.83 640.16610 mmxI=×0.453yI0.1596xyI=−×Now ()ave10.30952xyIII=+=×and 222xyRI−0.21463Then ( )120.15962tan48.040.1660.453mθ−−−=°−and 90290 ; 2m+°− =° =αθαThen ( )
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.