the mystery of life is not a problem to be solved, but a reality to be experienced
DESCRIPTION
The mystery of life is not a problem to be solved, but a reality to be experienced - Meditations from Buddislamic Text. Mechanical properties. Tensile test Hardness Toughness Fracture toughness Fatigue test Creep resistance. Tensile test. Yield strength Tensile strength Ductility . - PowerPoint PPT PresentationTRANSCRIPT
The mystery of life is not a problem to be solved, but a reality to be experienced
- Meditations from Buddislamic Text
Mechanical properties
Tensile testHardnessToughness Fracture toughnessFatigue testCreep resistance
Tensile test
Yield strengthTensile strengthDuctility
Tensile test
Yield strengthTensile strengthDuctility
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Tensile test
Yield strengthTensile strengthDuctility
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Tensile test
Yield strengthTensile strengthDuctility
Tensile test
Yield strengthTensile strengthDuctility
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
For metals:
in general, increase strength, decrease ductility
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
Al alloys 5-80 13-90 45-4
Ni alloys 15-170 50-210 60-5
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
Al alloys 5-80 13-90 45-4
Ni alloys 15-170 50-210 60-5
Ceramics - 20-380 0
Ceramics are..........?
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
Al alloys 5-80 13-90 45-4
Ni alloys 15-170 50-210 60-5
Ceramics - 20-380 0
Brittle does not mean weak
Yield (ksi) Tensile (ksi) Elongation
Steels 30-250 60-250 65-2 %
Al alloys 5-80 13-90 45-4
Ni alloys 15-170 50-210 60-5
Ceramics - 20-380 0
Thermoplastics - 1-12 5-1000
Thermosetting - 5-25 0
Hardness
Resistance to indentation
Hardness
Resistance to indentation
Greater hardnessgives higherhardness nos.
Example - quenched plain carbon steels
Correlation betwn strength & hardnessHarder means stronger for metals &
alloys
Toughness
Resistance to being clobbered
Toughness
Resistance to being clobbered
Impact test measures energy absorbed upon fracture
measure of toughness
Toughness
Resistance to being clobbered
QuickTime™ and aCinepak decompressor
are needed to see this picture.
Impact test
measure impact energy at differenttemperatures
Impact test
measure impact energy at differenttemperatures
Impact test
measure impact energy at differenttemperatures
Assignments for next class:
1. review today's classnotes; know tensile test & what data obtained, hardness test, impact test
2. Do problems previously assigned on ANGEL (use Matweb for data)