Design and Engineering Forum

Home
Engineering Forum Home
Engineering Design Data
Engineers Store


Forum Moderators: randykimball, Administrator | POSTING POLICY / RULES

Beam stiffness
Post Reply   Forum
Posted by: benNZ ®

09/04/2006, 04:03:08

Author Profile
eMail author
Edit

Does anyone know how to calculate a value for k (the stiffness of the steel beam) by knowing the 2nd moment of area and youngs modulus for steel
Thanks







Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
View All   | Next |

Replies to this message

Re: Beam stiffness
Re: Beam stiffness -- benNZ Post Reply Top of thread Forum
Posted by: zekeman ®

09/06/2006, 09:13:09

Author Profile
eMail author
Edit

The curvature of a beam( 2nd derivtive of the deflection) is equal to
M/EI or
d(dy/dx)/dx=M/EI
M= moment applied to beam at x
E= modulus of elasticity
I= 2nd moment of area or moment of inertia
From this you can get the information you need.






Modified by Administrator at Sat, Sep 09, 2006, 08:30:43


Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread
Re: Beam stiffness
Re: Beam stiffness -- benNZ Post Reply Top of thread Forum
Posted by: Kelly Bramble ®

09/04/2006, 08:33:04

Author Profile
eMail author
Edit

Stiffness is equal to force divided by deflection. Stiffness is an "intensive property". Meaning that is does not depend on the size or amount of material in the section.






Modified by Administrator at Fri, Sep 08, 2006, 19:50:13


Post Reply
Tell a Friend (must be logged in)
Alert Admin About Post
Where am I? Original Top of thread | |

Powered by Engineers Edge

© Copyright 2000 - 2024, by Engineers Edge, LLC All rights reserved.  Disclaimer