Introduction to Engineering Materials |
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Page 73
... stress . The stress acting upon a material is defined as the force exerted per unit area . For a force of 10 newton acting on a surface of 10 mm square the stress is force area 10 10 x 10 x 10-6 = 105 newton / metre2 ( N / m2 ) The ...
... stress . The stress acting upon a material is defined as the force exerted per unit area . For a force of 10 newton acting on a surface of 10 mm square the stress is force area 10 10 x 10 x 10-6 = 105 newton / metre2 ( N / m2 ) The ...
Page 79
... stress ; slip and plastic deforma- tion caused by shear force acting on slip planes Applied tensile stress necessary to initiate slip σ 45 ° Orientation of basal planes relative to stress axis 90 ° FIGURE 5.7 Variation of tensile yield ...
... stress ; slip and plastic deforma- tion caused by shear force acting on slip planes Applied tensile stress necessary to initiate slip σ 45 ° Orientation of basal planes relative to stress axis 90 ° FIGURE 5.7 Variation of tensile yield ...
Page 279
... Stress ( a ) Stress Mean stress M = АА Mean stress ( b ) ( c ) FIGURE 15.6 Types of stress cycle : ( a ) alternating , ( b ) repeating , ( c ) fluctuating stress cycle the value of the mean stress is zero . A repeating stress cycle is ...
... Stress ( a ) Stress Mean stress M = АА Mean stress ( b ) ( c ) FIGURE 15.6 Types of stress cycle : ( a ) alternating , ( b ) repeating , ( c ) fluctuating stress cycle the value of the mean stress is zero . A repeating stress cycle is ...
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Atomic structure | 3 |
Constitution | 6 |
Bonding between atoms | 20 |
Copyright | |
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alloys aluminium annealing anode applied austenite body centred cubic brittle carbide carbon steel casting cathode cent ceramics chemical chromium combustion component composition compounds compression containing cooling copper corrosion covalent bond crack creep crystal crystalline curve defects density diagram dislocation ductile elastic electrical electrolyte electrons elements energy example face centred cubic fatigue ferrite fibre Figure filler fracture furnace galvanic cell gauge length give grain hard hardening heat treatment hydrogen increase ingot ions iron kg/m³ lattice layer liquid metal load machining martensite material mild steel MN/m² modulus molecules mould nickel nitride occur oxide oxygen particles pearlite phase planes plastic deformation polymer polymerisation possess powder produced properties radiation reaction resin resistance rolling Section shape shell silica silicon slag solder solid solution strain stress structure surface Table tensile strength termed test-piece thermoplastic Thorium unit cell valency welding work-piece Young's modulus zinc