Beer, Ferdinand Pierre, 4 0 1915-

Mechanics of materials / 6 6 Ferdinand P. Beer, E. Russell Johnston, Jr., John T. Dewolf. - Fourth edition in SI units. - - xix, 779 pages : illustrations 26 cm. - - - - - . - . - 0 . - . - 0 .







5

















5





71249990

2 = =









2




2 --0------


6 --0-- 2 --------



0 2 --


--20------





Strength of materials. ----------


--------20--


----2

/ 2

/ 2

/

/