1、 KS M ISO 458 1KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS 1: KS M ISO 458 1 : 2007 2007 9 20 http:/www.kats.go.krKS M ISO 458 1: 2007 : () ( ) () ()SK () ( ) : (http:/www.standard.go.kr) : :2002 6 29 :2007 9 20 2007-0686 : : ( 02-509-7301) (http:/www.kats.go.kr ). 7 5 , . KS M ISO 458 1 : 2007 1: Plas
2、ticsDetermination of stiffness in torsion of flexible materialsPart 1:General method 1985 1 ISO 458 1, Plastics Determination of stiffness in torsion of flexible materials Part 1: General method , . 1 0 . 2 . . ( ) . KS M ISO 291, KS M ISO 458 2: 2003, 2: 3 . . 1 . 2 , . 4 KS M ISO 458 1: 2007 2 4.1
3、 35 55 mm . 1 . 4.2 , . . 4.3 . 4.4 1 . 4.5 0.1 . 4.6 . ( 1 ). . 1 , , , n , 87: 13 . 70 50, 30, 20 . . 2 . . 4.7 0.01 mm , . 10 30 kPa . 0.1 mm . KS M ISO 458 1: 2007 3 1 5 5.1 (7010) mm, 6 6.4 mm , 2 . . 2 . 10 360 KS M ISO 458 1: 2007 4 1 5 mm . . 13 mm . 5.2 2 . 5.3 KS M ISO 291 . 6 6.1 . 3 . 0.
4、1 mm . . 6.2 (4.1) . . . . 6.3 (4.4) . 6.4 (4.6) (4.3) , . . 6.5 . 6.7 . 6.6 . 6.7 180 . M , . M RW 221DDR+= D1 : (mm) D2 : (mm) W : (N) 5 , . . . . 015+KS M ISO 458 1: 2007 5 . A: 10 100 B: 50 60 . . A B . 7 7.1 T(MPa) . 3917dbLMT = MkT = , 3917dbLk = L : (mm) M : (N mm) b : ( )(mm) d : ( )(mm) : b
5、 d ( ). : () 917 : , k : (/mm3) . 7.2 . KS M ISO 458 1: 2007 6 1 b /d b/d b/d 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.25 2.64 2.82 2.98 3.13 3.26 3.37 3.48 3.57 3.66 3.84 2.50 2.75 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 3.99 4.11 4.21 4.37 4.49 4.58 4.66 4.72 4.77 4.81 . =4412136.333.5bdbd 8
6、 . a) KS M ISO 458 1 (A B ) b) , , , c) ( , , ) d) e) f) ( , , ) g) 1: 135513 7017 (02)60094114 (02)600948878 http:/ KS M ISO 458 1: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS PlasticsDetermination of stiffness in torsion of flexible materials Part 1:General method ICS 83.080.01 Korean Agency for Technology and Standards http:/www.kats.go.kr