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Materials Data Book EditionCambridge University Engineering Department

Tham khảo sách 'materials data book editioncambridge university engineering department', công nghệ thông tin, đồ họa - thiết kế - flash phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Materials Data Book 2003 Edition Cambridge University Engineering Department PHYSICAL CONSTANTS IN SI UNITS Absolute zero of temperature Acceleration due to gravity g Avogadro s number NA Base of natural logarithms e Boltzmann s constant k Faraday s constant F Universal Gas constant R Permeability of vacuum Po Permittivity of vacuum e0 Planck s constant h Velocity of light in vacuum c Volume of perfect gas at STP - 273.15 C 9. 807 m s2 6.022x1026 kmol 2.718 1.381 x 10-26 kJ K 9.648 x 107 C kmol 8.3143 kJ kmol K 1.257 x 10-6 H m 8.854 x 10-12 F m 6.626 x 10-37 kJ s 2.998 x 108 m s 22.41 m3 kmol CONVERSION OF UNITS Angle 0 1 rad 57.30 Energy U See inside back cover Force F 1 kgf 1 lbf 9.807 N 4.448 N Length l 1 ft 1 inch 1 A 304.8 mm 25.40 mm 0.1 nm Mass M 1 tonne 1 lb 1000 kg 0.454 kg Power P See inside back cover Stress Ơ See inside back cover Specific Heat Cp 1 cal g. C 4.188 kJ kg.K Stress Intensity K 1 ksiVin 1.10 MPa-ỹm Temperature T 1 F 0.556 K Thermal Conductivity À 1 cal s.cm.oC 4.18 W m.K Volume V 1 Imperial gall 1 US gall 4.546 x 10-3 m3 3.785 x 10-3 m3 Viscosity n 1 poise 1 lb ft.s 0.1 N.s m2 0.1517 N.s m2 1 CONTENTS Page Number Introduction 3 Sources 3 I. FORMULAE AND DEFINITIONS Stress and strain 4 Elastic moduli 4 Stiffness and strength of unidirectional composites 5 Dislocations and plastic flow 5 Fast fracture 6 Statistics of fracture 6 Fatigue 7 Creep 7 Diffusion 8 Heat flow 8 II. PHYSICAL AND MECHANICAL PROPERTIES OF MATERIALS Melting temperature 9 Density 10 Young s modulus 11 Yield stress and tensile strength 12 Fracture toughness 13 Environmental resistance 14 Uniaxial tensile response of selected metals and polymers 15 III. MATERIAL PROPERTY CHARTS Young s modulus versus density 16 Strength versus density 17 Young s modulus versus strength 18 Fracture toughness versus strength 19 Maximum service temperature 20 Material price per kg 21 IV. PROCESS ATTRIBUTE CHARTS Material-process compatibility matrix shaping 22 Mass 23 Section thickness 23 .