GOST 32281 2-2013 Glass and glass products Determination of the bending strength Coaxial double ring test on flat specimens with large test surface areas《玻璃和玻璃制品 抗弯强度的测定 有大试验表面的平试样.pdf

1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) 32281.2 2013 (N 1288-2: 2000) (EN 1288-2:2000, MOD) 2014 32281.2-2013 II , - 1.092 . 1.22009 . , . , , , 1 c - , 5 2 41 3 , ( 5 2013 . 61-) : ( 3166) 00497 ( 3166) 00497 AM BY KG MD - RU TJ UZ 4 22 - 2013 . 1989- 32281.2

2、-2013 (EN 1288-2:2000) 1 2015 . 5 - EN 1288-2:2000 Glass in building Determination of the bending strength of glass Part 2: Coaxial double ring test on flat specimens with large test surface areas ( . - . 2. ) , , . , -, - . . (CEN) 129 . , , - (89/106/) . (en). (MOD) 6 32281.2-2013 III - , . () - -

3、 . , , 2014 -, - 32281.2-2013 1 Glass and glass products. Determination of the bending strength. Coaxial double ring test on flat specimens with large test surface areas 20150101 1 . 32281.1. 32281.1 . 2 -: 11120011 . 2040375 . ( 30 IRHD 100 IRHD) 32281.12013 (EN 1288-2:2000) . . - , 1 , , . (), -,

4、() . , , , , - .3 3.1 (bending stress): , - . . 3.2 (effective bending stress): , . 3.3 (bending strength): - , . 1 541702010. _ 32281.2-2013 2 3.4 (equivalent bending strength): - , . 4 : ; ( ) ; - (. 111) 3270 10 ; F ; Fmax , ; Fring , , ; h ; L ; m ; - (. 111) - 0,23. , ; p(F) ; pmax(Fmax) ; r ;

5、r1 ; r2 ; r3m ( ); s ; sbB ; sbeqB ; t ; DF/Dt , ; F*, p*, s* , F, p s (. 1 - 5). 5 L, -, ( r2). - Fring c ( r1), - . , , 0rr1, , , , Fring (. - 1). , r1, r2, L h, , , , - (. 1, 2, 3 ). - (r=0), r. - ; , . , - - - . -, , (. 32281.1). , F, , , - (. 6.1) : -, , . 32281.2-2013 3 , 1, , , , F, , . , , F

6、ring = F pA. , . , sbB, , sbeqB, - , Fmax, , , , h, , . , , , , F, , p(F) (. 3). 6 6.1 , - : ) , - ; ) ; ) 2% . 1 1 ; 2 ; 3 32281.2-2013 4 2 1 ; 2 , , - ( r2)(1); 3 , , 3 , (40 10) IRHD ( 20403); 4 (- r1), (1); 5 , , - ; 6 , - , 3 (40 10) IRHD ( 20403)(2); 7 (3); 8 - ; 9 1 5 . 2 , 5 -. 3 , -. 6.2 6.

7、2.1 , 2. 1. 1 r1 , r2 , - , 2 300 1 400 1 240 000 6.2.2 2. , p(F), 3 3 (. ). 6.3 : - , -; - , 0,01 . 32281.2-2013 5 7 7.1 , 2. , . 2 , L, , ( ), r3m, 1000 4 3 600 : : - 0,3 ; - 2% . : - (. 8.3) 4% (- ) 30% 2 , . 7.2 7.2.1 , - , , . ., . 1 , , - () - . 2 , . 7.2.2 24 (. 32281.1). - (. 8.1 8.2) 4 . 7.2.3 ,