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Samenvatting constructieleer periode 7

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Samenvatting van de toets constructieleer periode 7

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  • January 8, 2022
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  • 2020/2021
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Spanning heeft twee tekens
σ of τ
eenheid is N/mm2
F F
σ= of τ =
A A



σ of τ spanning in N/mm2
F kracht in Newton
A oppervlakte in mm2


σ per materiaal een maximaal toelaatbare spanning


σ een spanning veroorzaakt door een normaalkracht, de spanning staat loodrecht op de
doorsneden.


τ is een spanning die veroorzaakt wordt door een dwarskracht. Spanning staat evenwijdig
met de doorsneden.


5 soorten spanning:
 Stuikspanning σ
 Drukspanning σ
 Afschuifspanning τ
 Trekspanning σ
 Vlakspanning σ
Wet van hoek= verlening van materiaal als gevolg van kracht.
Δ= (F * Lo) / (E * A)
F = kracht in newton
E = elasticiteitsmodules (hoe moeilijk het is om materiaal uit te rekken, hoe groter dit getal
hoe lastiger het uit elkaar trekken is)
A = oppervlakte van de doorsnede mm2
Lo = oorspronkelijke lengte in mm
Wet van hoek= verlening van materiaal als gevolg van temperatuur.

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