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ID number:276631
 
Author:
Evaluation:
Published: 26.11.2012.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Extract

Noturību aprēķināsim sija 5-9, kura ir spiesta sija ar pieliktu spēku galā (skat. 1.att.)
Dots: materiāls – koks; šķērsgriezums – kvadrāts; b = 2.5 cm; P = 10 kN; N = 26.3 kN; l = 4 m; E = 10∙105 kN/m2; μ = 1 (jo stieņa abos galos ir locīkla); [σsp] = 10000 kN/m2 = 10 MPa
3. attēlā var redzēt sijas šķērsgriezumu, aprēķināsim šķērsgriezuma laukumu:
A = b2 = (2.5 cm)2 = 6.25 cm2

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