AND DEFORMATION OF A TI1IN ELASTIC SHKI.L. 517 



Using (22), we find for the line-integral part, 



n . \ ., /_, m n \ m + n 





28*, 



+J **%,[- 



where, by integration by parts, the second terra becomes 



Again, 



f(8W,dS=ff2( ^ 

 JJ JJ \m-(-n 



ff / 2"t . - \ s Aerf/9 ff 



-f 2 - <r 2 + o"i do'a , , + 



JJ \m + n m + n 7 /^A, JJ 



' 



a /i\/ 2m 



a /i 



ffjjotT/ 2 " 1 . m n, \ 2 ,/2m ,m-n \2 "I 



\\dadp6w (- -o-j+ - <r 2 r-r --- M- - cr g + - o-j J-r-: 



JJ |_\wi4n ' T +*/%*, ft ' \ -f 'TO + nV^A,/)^ 



2 / 2m .m n \ . 7C> 2/2wi 



(28) 



