1、ASTM D790-03 1. 1.1 5.0% D 6272 1.1.1 A 1.1.2 B 1.1.3 A B A B 1.2 1.3 1.4 1 ISO 178 2. 2.1 ASTM D 618 D 638 D 883 D 4000 D 5947 D 6272 E 4 E 691 3. 3.1 D 883 D 638 A1 4. 4.1 1 16:1 7 8 4.2 5.0% 12.7 4.3 A 0.01mm/mm/min 0.01in.in./min B 0.10mm/mm/min 0.01in.in./min A B a =3.2mm 1/8in. b 1.6 = 4 1 5.
2、5.1 5.2 5.3 A B 8 5.4 D 4000 1 ASTM 10 3 psi 10 3 psi V r A V R B r C R D - - (ABS) 9.99 1.59 6.05 4.44 17.2 (DAP thermoset) 14.3 6.58 6.58 18.6 18.6 (Cast acrylic) 16.3 1.67 11.3 4.73 32.0 GR polyester 19.5 1.43 2.14 4.05 6.08 GR polycarbonate 21.0 5.16 6.05 14.6 17.1 SMC 26.0 4.76 7.19 13.5 20.4 A
3、 V r = S r =(S 1 ) 2 +(S 2 ) 2 +(S n ) 2 /n 1/2 V r = S r 100. B V r = S R =S r 2 +S L 2 1/2 , S L V R = S R 100. C r = 2.8V r D R= =2.8V R . 6. 6.1 1% 1% E 4 6.2 5.0 0.1mm 0.197 0.004in. 3.2mm 1/8in. 3.2mm 1.6 1 4 2 6.3 0.025mm 0.001in. 25 2.5kPa 3.6 0.36psi 6.35 0.025mm 0.250 0.001in. 0.005mm in.
4、D 5947 7. 7.1 4.2 D 5947 3 7.2 7.2.1 1.6mm 1/6in. 4 5 16 3.2mm 1/8in. 1/4 3.2mm 12.7mm 1/2in. 10% 6.4mm 1/4in. 4 5 7.2.2 1.6mm 1/16in. 50.8mm 2in. 12.7mm 1/2in. 25.4-mm 1-in. 6 7 14 1 7.3 25.4mm 1 in. 25.4mm 12.7mm 1/2 in. 12.7mm 8 16 1 32 1 40 1 4 7.4 127 12.7 3.2mm 16 1 7.5 8 16 1 32 1 40 1 40 1 6
5、0 1 8 8 1 16 1 8. 8.1 5 8.2 5 90 9. 9.1 ASTM D 618 A 23 73.4 3.6 50 5% 40 1 1.8 2% 9.2 ASTM 23 73.4 3.6 50 5% 1 1.8 2% 10. 10.1 A 10.1.1 0.03mm 0.001in. 2.54mm 0.100in. 0.003mm 0.0005in. D 5947 10.1.2 7 1% 10.1.3 63mm 2.5in. 0.1mm 0.004in. 63mm 2.5in. 0.3mm 0.012in. A2 10.1.4 1 R=ZL 2 /6d 1 R mm in.
6、/min L mm in. d mm in. Z mm/mm/min in./in./min Z 0.01 1 10% 10.1.5 A2.3 10.1.6 - - 10.1.7 0.05mm/mm in./in. 9 10 2 r=0.05mm/mm in./in. D = rL 2 /6d 2 D = mm in. r = mm/mm in./in. L = mm in. d = mm in. 9 A 5% B 10.2 5% 10 5% A B 5% 10.2 B 10.2.1 10.2.2 0.10mm/mm in./in./min 10.1 10.2.3 0.05mm/mm in.
7、10 11. 11.1 12. 12.1 A 12.2 f - 11-13 f = 3PL/2bd 2 3 MPa psi P N lbf mm in. mm in. mm in. 11 3 3 5% 12 3 13 12.3 f 16 1 10% 14 f = 3PL/2bd 2 1+6(D/L) 2 - 4(d/L)(D/L) 4 f P L b d 3 D = mm in. 14 4 12.4 fM 12 3 4 5% - Y 2 B P 3 4 Y 12.5 15 12.4 D 638 12.6 fB 3 4 - B Y 2 a fB = fM B 2 b P 3 4 B a b 5% c 5% 2 f f 12.7
