Do not read so much, look about you and think of what you see there
– Feyman
Do not read so much, look about you and think of what you see there
– Feyman
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Fibers:mainly - glass (GFRPs), carbon (CFRPs),
aramid,others - B, SiC, Al2O3
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Carbon fibers frequently used as woven fabrics impregnated with an epoxyCarbon fibers frequently used as woven fabrics impregnated with an epoxy
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Woven carbon fiber fabrics in auto industry -Woven carbon fiber fabrics in auto industry -
2006 BMW M6 - roof (unpainted)2006 BMW M6 - roof (unpainted)
'vette Z06 - front fenders, wheel wells, floor'vette Z06 - front fenders, wheel wells, floorPorsche Carrera GT ($440,000) - framePorsche Carrera GT ($440,000) - frame
Scion accessories - gear shift knob ($49), fuel-filler door ($39), roof pillar appliqués ($75-189), etc.
Scion accessories - gear shift knob ($49), fuel-filler door ($39), roof pillar appliqués ($75-189), etc.
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs) MatrixMatrix
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Very common - polyesters, vinyl estersVery common - polyesters, vinyl esters
CompositesComposites
Role of matrix in FR composites:a. transfer stresses betwn fibersb. provide barrier to environmentc. protect fibers
Role of matrix in FR composites:a. transfer stresses betwn fibersb. provide barrier to environmentc. protect fibers
Matrix/fiber bond:matrix must wet fiber physical & chemical bond desirablemechanical interlocking
Matrix/fiber bond:matrix must wet fiber physical & chemical bond desirablemechanical interlocking
Fibers frequently coated w/ coupling agentFibers frequently coated w/ coupling agent
CompositesComposites
Fibers - variablesamountfiber lengthdistributionorientation
Fibers - variablesamountfiber lengthdistributionorientation
CompositesComposites
Fibers - variablesamountfiber lengthdistributionorientation
Fibers - variablesamountfiber lengthdistributionorientation
Fiber orientation can berandom aligned intermediate
Fiber orientation can berandom aligned intermediate
Assignment:
Review today's classnotes
a. PMCs - fibersb. vinyl estersc. matrix/fiber bondd. fiber characteristics &
behavior
Read pp. 538-563
Assignment:
Review today's classnotes
a. PMCs - fibersb. vinyl estersc. matrix/fiber bondd. fiber characteristics &
behavior
Read pp. 538-563
Composites - polymer matrix composites (PMCs) Composites - polymer matrix composites (PMCs)
Role of matrix in FR composites:a. transfer stresses betwn fibersb. provide barrier to environmentc. protect fibers
Role of matrix in FR composites:a. transfer stresses betwn fibersb. provide barrier to environmentc. protect fibers
Slow crack growthdeflect crack tipsredistribute stresses around crack
tipsbridge crack tips
Slow crack growthdeflect crack tipsredistribute stresses around crack
tipsbridge crack tips