A.5 TYPICAL MECHANICAL PROPERTIES OF UNIDIRECTIONAL CONTINUOUS FIBER COMPOSITES Boron- AS Carbon- T-300- HMS Carbon- GY-70- Kevlar 49- E-Glass- S-Glass- Property Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Epoxy Density.g/cm3 1.99 1.54 1.55 1.63 1.69 138 1.80 1.82 Tensile properties Strength,MPa(ksi)0 1585(230) 1447.5(210) 1447.5(210) 827(120) 586(85) 1379(200 1103(160) 1214(176) 90° 62.7(9.1) 62.0(9) 44.8(6.5) 86.2(12.5) 41.3(6.0) 28.3(4.1) 96.5(14) Modulus GPa(Msi0° 207(30) 127.518.5) 138(20) 207(30) 276(40) 76(11) 39(5.7) 43(6.3) 90° 19(2.7) 9(1.3) 10(1.5) 13.8(2.0) 8.3(1.2) 5.5(0.8) 4.80.7) Major Poisson's ratio 0.21 0.25 0.21 0.20 0.25 0.34 0.30 Compressive properties Strength,MPa(ksi).0 2481.5(360) 1172(170) 1447.5(210) 620(90) 517(75) 276(40) 620(90) 758(110) Modulus..GPa(Msi.0° 221(32) 110(16) 138(20) 171(25) 262(38) 76(11) 32(4.6) 41(6) Flexural properties Strength,MPa (ksi).0 1551(225) 1792(260) 1034(150) 930(135) 621(90) 1137(165) 1172(170) Modulus,GPa (Msi), 117(17) 138(20) 193(28) 262(38) 76(11) 36.5(5.3) 41.4(6) In-plane shear properties Strength,MPa(ksi) 131(19 60(8.7) 62(9) 72(10.4) 96.5(14) 60(8.7) 83(12) 83(12) Modulus.GPa(Msi) 6.4(0.93) 5.7(0.83) 6.5(0.95) 5.9(0.85) 4.1(0.60) 2.1(0.30) 4.8(0.70) Interlaminar shear strength. 110(16) 96.5(14) 96.5(14) 72(10.5) 52(7.5) 48(7) 69(10) 72(10.5) MPa(ksi)o° Source:From Chamis,C.C.,Hybrid and Metal Matrix Composites,American Institute of Aeronautics and Astronautics,New York,1977.With permission.A.5 TYPICAL MECHANICAL PROPERTIES OF UNIDIRECTIONAL CONTINUOUS FIBER COMPOSITES Property Boron– Epoxy AS Carbon– Epoxy T-300– Epoxy HMS Carbon– Epoxy GY-70– Epoxy Kevlar 49– Epoxy E-Glass– Epoxy S-Glass– Epoxy Density, g=cm3 1.99 1.54 1.55 1.63 1.69 1.38 1.80 1.82 Tensile properties Strength, MPa (ksi) 08 1585 (230) 1447.5 (210) 1447.5 (210) 827 (120) 586 (85) 1379 (200) 1103 (160) 1214 (176) 908 62.7 (9.1) 62.0 (9) 44.8 (6.5) 86.2 (12.5) 41.3 (6.0) 28.3 (4.1) 96.5 (14) — Modulus GPa (Msi) 08 207 (30) 127.5 (18.5) 138 (20) 207 (30) 276 (40) 76 (11) 39 (5.7) 43 (6.3) 908 19 (2.7) 9 (1.3) 10 (1.5) 13.8 (2.0) 8.3 (1.2) 5.5 (0.8) 4.8 (0.7) — Major Poisson’s ratio 0.21 0.25 0.21 0.20 0.25 0.34 0.30 — Compressive properties Strength, MPa (ksi), 08 2481.5 (360) 1172 (170) 1447.5 (210) 620 (90) 517 (75) 276 (40) 620 (90) 758 (110) Modulus, GPa (Msi), 08 221 (32) 110 (16) 138 (20) 171 (25) 262 (38) 76 (11) 32 (4.6) 41 (6) Flexural properties Strength, MPa (ksi), 08 — 1551 (225) 1792 (260) 1034 (150) 930 (135) 621 (90) 1137 (165) 1172 (170) Modulus, GPa (Msi), 08 — 117 (17) 138 (20) 193 (28) 262 (38) 76 (11) 36.5 (5.3) 41.4 (6) In-plane shear properties Strength, MPa (ksi) 131 (19) 60 (8.7) 62 (9) 72 (10.4) 96.5 (14) 60 (8.7) 83 (12) 83 (12) Modulus, GPa (Msi) 6.4 (0.93) 5.7 (0.83) 6.5 (0.95) 5.9 (0.85) 4.1 (0.60) 2.1 (0.30) 4.8 (0.70) — Interlaminar shear strength, MPa (ksi) 08 110 (16) 96.5 (14) 96.5 (14) 72 (10.5) 52 (7.5) 48 (7) 69 (10) 72 (10.5) Source: From Chamis, C.C., Hybrid and Metal Matrix Composites, American Institute of Aeronautics and Astronautics, New York, 1977. With permission.
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