Why section modulus is important
Why section modulus is important
(OP)
Hi,
I would like know why section modulus is important while designing sheet metal component like cross member used in frame of commercial vehicle,why not consider all area
Thanks in advance
I would like know why section modulus is important while designing sheet metal component like cross member used in frame of commercial vehicle,why not consider all area
Thanks in advance
Nitin
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RE: Why section modulus is important
if the cross member is in tension, then A is more relevent.
Quando Omni Flunkus Moritati
RE: Why section modulus is important
RE: Why section modulus is important
i am little bit appreciate your answer,but can you explain me how it will affect with some suitable example
Nitin
Nx -7.5
Teamcenter-8.0
iHungry Always
RE: Why section modulus is important
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Why section modulus is important
Here is a good example, get a 12" rule and hold it flat at each end in your hands, now see how easy it bends, turn the rule through ninety degrees so that the width of the rule is vertical, then try bending that in your hands, I am sure you will see the difference even though the rule hasn't changed in area.
RE: Why section modulus is important
Regards,
Mike
RE: Why section modulus is important
The difference comes in two terms: neutral axis and outer surface. In bending, the particles on one surface are in tension while those on the opposite surface are in compression. The particles near the center of the beam see near zero stress, thus "neutral axis". The strength of the beam is related to the distance from the neutral axis to the far outer surfaces of the beam where the material particles see the maximum tension and compression.
RE: Why section modulus is important
Stress= MC/I
http://www-classes.usc.edu/architecture/structures...
Deflection is strongly related to I also.
http://ruina.tam.cornell.edu/Courses/ME4730/Rand47...
RE: Why section modulus is important
Mike McCann
MMC Engineering
RE: Why section modulus is important
stress (due to force) = F/A
as noted above, two sections can have the same area both different modulus (= I/c)
take a rectangle, A = bh, I = bh^3/12, Z = bh^2/6
1) a square b = B, h = B, Z = B^3/6
2) a rectangle, b = B/2, h = 2B (same area as 1), Z = 2B^3/6
Quando Omni Flunkus Moritati
RE: Why section modulus is important
RE: Why section modulus is important
And that`s best described by the modulus I.
Andy
RE: Why section modulus is important
Nitin
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Teamcenter-8.0
iHungry Always