Hi

Would anyone have advice on how the bending stiffness of a fiber-matrix
composite depends on the angle of the fibers? Should be a pretty basic
problem, but I could only find information for the stiffness in tension,
not bending. I would need this to discuss the influence of changes in
the cellulose microfibril angle in wood cell walls on the bending
stiffness of the wood.

Thanks a lot!

Lothar Koehler

Michigan State University

"koehlerl" schreef
Hi

Would anyone have advice on how the bending stiffness of a fiber-matrix
composite depends on the angle of the fibers? Should be a pretty basic
problem, but I could only find information for the stiffness in tension,
not bending. I would need this to discuss the influence of changes in
the cellulose microfibril angle in wood cell walls on the bending
stiffness of the wood.

Thanks a lot!

Lothar Koehler

Michigan State University

You mention:
* bending stiffness of a fiber-matrix composite
* the angle of the fibers in it
* microfibril angle in cell walls
* bending stiffness of the wood
This covers quite a few levels. Hardly looks basic!
PvR

P van Rijckevorsel wrote:
"koehlerl" schreef

Hi

Would anyone have advice on how the bending stiffness of a fiber-matrix
composite depends on the angle of the fibers? Should be a pretty basic
problem, but I could only find information for the stiffness in tension,
not bending. I would need this to discuss the influence of changes in
the cellulose microfibril angle in wood cell walls on the bending
stiffness of the wood.

Thanks a lot!

Lothar Koehler

Michigan State University


You mention:
* bending stiffness of a fiber-matrix composite
* the angle of the fibers in it
* microfibril angle in cell walls
* bending stiffness of the wood
This covers quite a few levels. Hardly looks basic!
PvR

Thanks for breaking it down!! I can see the whole issue much clearer now!

However, my question still remains quite simple: the mathematical
relation between fiber angle and bending stiffness of a fiber matrix
composite.

"koehlerl" schreef
However, my question still remains quite simple: the mathematical
relation between fiber angle and bending stiffness of a fiber matrix
composite.

***
Well, the only thing mildly interesting from a botanical point of view is
"microfibril angle in cell walls". However, this is not all that likely to
affect the properties of a "fiber matrix composite", unless perhaps the
latter is a sheet of paper. So you are asking the wrong group.
PvR