Spänning i en punkt. Normaltöjning - deformation och värme Flashcards

1
Q

Infinitesimalt

A

Normalspänning i en punkt (betrakta ett oändligt litet element)

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2
Q

Spänningskoncentrationsfaktor

A

K_t

=> σ_max = K_t * σ_nom

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3
Q

σ_0

A

Spänningen i opåverkat material

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4
Q

σ_nom

A

Medelspänning i påverkat material

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5
Q

σ_max

A

Max spänningen i en punkt

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6
Q

Saint-Venants princip

A

Spänningstillståndet i de delar av en kropp som ligger långt från belastningsområdet beror enbart av belastningens resultant och inte av belastningens fördelning inom det belastade området.

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7
Q

ν

A

Tvärkontraktionstalet - Poissons tal

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8
Q

α

A

Temperaturutvidgningskoefficient

Längdutvidgningskoefficienten

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9
Q

δ

A

Förlängning

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10
Q

ε

A

Töjning

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11
Q

u

A

Förskjutning

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12
Q

L_0

A

Ursprungslängd

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13
Q

E

A

Elastisitetsmodulen

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14
Q

Rm

A

Brottgräns

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15
Q

ReH

A

Övre Sträckgräns

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16
Q

ReL

A

Undre sträckgräns