The Six Engineering Characteristics of Wood
The Big E and the Five Little f ’s
Engineering Term | Meaning | |
---|---|---|
E (Modulus of Elasticity) |
![]() | How much this sample will deflect under a given load. |
Fb (Extreme fiber stress before failure occurs) |
![]() | How much we can stress a member in bending before permanently rupturing fibers. |
fcii (Compressive strength when loaded parallel to grain) |
![]() | How much load we can put on the member when loaded like this before rupturing fibers. |
fv (Horizontal shear) |
![]() | How much load we can apply as shown before material will fail along the indicated failure plane. |
Ft (Tensile strength parallel to grain) |
![]() | How much tension we can put this member under before failure. |
Fc⊥ (Compressive strength loaded perpendicular to grain) |
![]() | How much load we can apply in this manner before actual crushing. |