GOST R 55071-2012 Fiberglass reinforced thermosetting plastic pipes and parts of pipelines Methods for determination of initial specific ring stiffness《玻璃纤维增强热固性塑料管和管道部分 特定初期环状物硬度的.pdf

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5、(3,0 0,5) % (60 10) . 2 2 , . 7.5.3 3 . 7.5.4 7.4.4. 8 8.1 L, , . 8.2 , , . 8.3 d, , (1) (2). 550712012 5 3 8.4 S0, /2, : yL FfS 0, (4) f ; F , ; L , ; y , , . 5 1025001860 d yf , (5) d , y = d0 d1, (6) d0 , ; d1 , . 9 , : - , ; - ; - ; - ; - , ; - , . ; - ; - ; - , ; - ; - , , , , ; - . 550712012 678.742-462:006.354 23.040.20 23.040.45 29 2201 : , , , , 01.08.2014. 60x841/8. . . 0,93. 70 . . 2804. , 123995 , ., 4. www.gostinfo.ru infogostinfo.ru