1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 179 2 2: KS M ISO 179 2:2012 2012 12 22 http:/www.kats.go.krKS M ISO 179 2:2012 : ( ) ( ) SREAP ( ) : (http:/www.standard.go.kr) : :2007 10 30 :2012 12 22 2012-0746 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS M ISO 179 2:2012 i ii 1 1 2 2
2、 3 .2 4 6 5 7 5.1 .7 5.2 9 5.3 10 6 10 7 10 8 .11 8.1 .11 8.2 11 8.3 11 8.4 .12 8.5 .13 8.6 13 9 13 10 .13 A( ) .14 B( ) .17 C( ) .18 20 KS M ISO 179 2:2012 ii 1997 1 ISO 179 2, Plastics Determination of Charpy impact properties Part 2: Instrumented impact test 2011 Amendment 1 , . KS M ISO 179 2:20
3、12 2: Plastics Determination of Charpy impact properties Part 2: Instrumented impact test 1 1.1 - . , , KS M ISO 179 1 . / , / ( 1 b A ). 1.2 (Charpy) (Izod) KS M ISO 179 1 1. . KS M ISO 179 1 , (KS M ISO 13802 C ). - - . 1.3 KS M ISO 179 1 1. . 1.4 KS M ISO 179 1 1. . 1.5 . , . , / . - . . 1.6 . .
4、, . KS M ISO 179 2:2012 2 1.7 , KS M ISO 179 1 . 2 . . ( ) . KS M ISO 179 1, 1: KS M ISO 13802, , 3 KS M ISO 179 1 . 3.1 0 m/s . 3.2 - - . ( 1 b A ). 3.3 F N . 3.4 s , mm . 3.5 W s , , J . KS M ISO 179 2:2012 3 s - . 3.6 FM- - ( 1 ). N . 3.7 sM FM ( 1 ). mm . 3.8 WM J . 3.9 sB FM 5 % ( 1 ). mm . l b
5、, L - ( 1 N ) , sB sL . 1 , sL (32 34) mm . 1 , . , 0 ( 20 mm ) , . , - . . . , . (guide element) , . 3.10 WB sB KS M ISO 179 2:2012 4 J . 3.11 ( ) acU(acN) ( ) A(AN) (8.4 KS M ISO 179 1 3.1, 3.2 ). kJ/m2 . 3.12 ( 2 ). (N) (P), (t), (b) (s) . t, b s KS M ISO 179 1 C(complete break C) H(hinge break H
6、) . . P(partical break P) KS M ISO 179 1 7.6 . KS M ISO 179 1 7.7 . 2 , ( s ) ( b ) . KS M ISO 179 2:2012 5 1 - (N t) - (b) ( 2 ) (N) (N) (ms) (mm)KS M ISO 179 2:2012 6 N : sL P : sL 5 % t : sL 5 % b : s : sL :- (pull-through) , - KS M ISO 6603 21 . , ( ) , . 3 . ( A ). 2 1 - 4 (beam) ( ) , . KS M I
7、SO 13802 5. . . (N) (mm)(N) (mm)KS M ISO 179 2:2012 7 . - - . 5 5.1 5.1.1 , . ( , ) . , . , . 5.1.2 KS M ISO 179 1 (KS M ISO 13802 5.2.3 ) (0) (2.900.15) m/s , (3.80.2) m/s . 0 (3.80.2) m/s , KS M ISO 179 1 (2.900.15) m/s ( 1 2 ). , 10 % ( 3 ). . , - . , (435) cm (747) cm , , (E) 1.54 . 10 % J E . E
8、/W 5(1) W: J (KS M ISO 13802 C 2 ). , kg mC (2) (3) . mC 10 W/02(2) KS M ISO 179 2:2012 8 mC 1.2 W(0 2.9 m/s )(3) mC 12 kg(W 10 J ) 1 Fl ( 1 b ) . A C 1, 2 . A . 2 , , 1 , (10.05) m/s . 3 KS M ISO 179 1 7.3(KS M ISO 13802 C ) . , . - - . 5.1.3 KS M ISO 13802 5.8.1 3 . , . . , - . 5.1.4 KS M ISO 1380
9、2 5.2 3 . 5.1.5 KS M ISO 13802 5.7.1 . 5.1.6 5.1.3 5.1.5 . mF/mC 10 ( B 1, 2 ). . . . 1 KS M ISO 13802 5.3.3 40: 1 . . KS M ISO 179 2:2012 9 2 mF/mC 10 , 1 % ( B ). 5.1.7 , 1 % . , Wf 1/4 E 2 % , 8 % (KS M ISO 13802 5.6 ). , , . 5.2 5.2.1 , (piezoelectric transducer) . . 1 % . - . ( , .) ( , 4 ) . 2
10、 % . - fn fs 3 ( 1 ). - . ( 2 3 ). - 20 % ( A.2 ). ( - ) . - (post-impact filtering) , 10. m) . 1 , fS 2 kHz 10 kHz . - fn 30 kHz , . fn fS . , ( 1 b, tB ) - (tB ) . 2 . 2 - . . , - “ (pulls)” KS M ISO 179 2:2012 10 , . . 3 ( 1 b ) . , 0.1 ms tl( 1 b ) 2 kHz 10 kHz , - ( ) 100 kHz ( 4 ). (100 kHz) t
11、B(13 ms) . 4 2.9 m/s 13 ms . . 50 % . , tB . 5.2.2 - (8.2 ) . , . . , - - . . - . 5.3 KS M ISO 179 1 5.2 . 6 KS M ISO 179 1 6. . 7 7.1 . , 10 . . , 30 . 7.2 KS M ISO 179 1 7.1 . 7.3 (5.1.2 ) , - KS M ISO 179 2:2012 11 (5.1.2 ) . 1 % . 7.4 . . (KS M ISO 179 1 1 ) . 7.5 . , . 8 8.1 - - . . , ( 1 ). 8.
12、2 , - , (4) (5) - ( 1 ). : =tttttFMgLtts0101HP0dd)()( (4) : +=ttgttttFmtts01021C021dd)(1)( (5) 0: (m/s) t : , (s) LP: ( ) (m)(KS M ISO 13802 5.2.1 ) MH: (Nm)(KS M ISO 13802 5.2.3 ) F(t) : t (N) s(t) : t (m) mC: (kg) g : (m/s2) 1 WB/E ( ) 0.2 , (4) (5) 0t 5 % . 2 (5) . 8.3 KS M ISO 179 2:2012 12 t - , (6)( ) J , W . =jsjssFW0d)( (6) j : - . (B) (M) s : (m) F : (N) , s(t) . Wj Wja(1 Wja/4E)(7) Wja: =jtjttFW00ad)( W/E 0.2 , (7) 5 % . 8.4 8.4.1 , acU(kJ/m2) . 3BcU10=bhWa (8) h : (mm) b : (mm) WB: (J) 8.4.2 , acN(kJ/m2) . 3NBNc10=hbWa (9) WB: (J) h : (mm) bN: (mm) N :