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style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">> a jak si overit, ze takova trubka ohnuta do U vydrzi
zatizeni rekneme 100kg (= >neohne se). </FONT></DIV></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT face="Courier New">a ako je zatazene ta ohnuta trubka? Ako lezate U a
stlaca sa?</FONT></DIV>
<DIV><FONT face="Courier New">tak potom takto: </FONT></DIV>
<DIV><FONT face="Courier New">moment v mieste ohybu: M=F*L F=1000N,
L je vzdialenost sily od ohybu (najvzdial)</FONT></DIV>
<DIV><FONT face="Courier New"></FONT> </DIV>
<DIV><FONT face="Courier New">|F</FONT></DIV>
<DIV><FONT face="Courier New">|</FONT></DIV>
<DIV><FONT face="Courier New">\|/</FONT></DIV>
<DIV><FONT face="Courier New">-----------</FONT></DIV>
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face="Courier New">
\
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| </FONT></DIV>
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style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">
/</FONT></DIV></DIV>
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<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">----------- |</FONT></DIV></DIV>
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<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">|
|</FONT></DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">|<-----L --->|</FONT></DIV></DIV>
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<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New"></FONT> </DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">Potom napatie v mieste ohybu p = (NapOdOhybu) + (NapOdTlaku)
= M/Wo + F/St </FONT></DIV></DIV>
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<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">Wo je modul prierezu v ohybe = pi*(D^4-d^4)/(32*D) a St
je plocha prierezu trubky (materialu), D a d su velky a maly priemer
trubky.</FONT></DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">a to p by malo byt mensie ako dovolene pre dany mat. dajme
tomu okolo 100MPa pre bezny mat.</FONT></DIV></DIV>
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<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New"></FONT> </DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">mozno by ale stalo zato spocitat ze ked sa to sice plasticky
nedeformuje ci to nebude moc pruzne a ohne sa to len
pruzne...</FONT></DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New"></FONT> </DIV></DIV>
<DIV style="FONT: 10pt tahoma">
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none"><FONT
face="Courier New">m.</FONT></DIV></DIV></DIV></DIV></BODY></HTML>