1. a steel bar of circular section is subjected to uniaxial tension of load p. the original dimensions are given as diameter d0 and length 0 l . the reduction in diameter as a function of the loading p is approximated as 1 3 0 0 1 p d d p   = −     , and the extension of the bar is given as 1 3 0 0 1 p l l p   = +     when 0 p p = 0.05 , compute the ratio of true stress vs. engineering stress, i. e., true eng   and the true strain ( ) true  2. textbook problem 2.6a, b,c (see scanned copy)