Jl. Zhang et Ca. Eckelman, THE BENDING MOMENT RESISTANCE OF SINGLE-DOWEL CORNER JOINTS IN CASE CONSTRUCTION, Forest products journal, 43(6), 1993, pp. 19-24
This study was carried out to obtain background information concerning
the bending moment resistance of single-pin dowel joints in particleb
oard and also to provide the background information needed to formulat
e expressions for predicting the bending moment resistance of single-d
owel, L-type, corner joints in particleboard. Test results indicated t
hat the bending moment resistance of the single-dowel corner joints in
creased significantly as dowel diameter increased from 1/4 to 3/8 inch
and as the depth of dowel embedment in the face member increased from
1/4 to 5/8 inch. Changes in depth of embedment in the edge member fro
m 3/4 to 1-1/2 inches, however, had no effect on bending moment resist
ance. Single-dowel comer joints loaded in tension had slightly higher
ultimate bending moment resistances than the joints loaded in compress
ion. In the compression tests, the dowel withdrew from the edge member
in a few cases when the depth of dowels in the edge member was 3/4 in
ch. In the tension tests, the edge member split when the depth was 3/4
inch. In order to obtain the maximum bending moment resistance, there
fore, a conservative embedment depth of 1 inch is suggested as an opti
mal value for dowel embedment in the edge member. In general, the bend
ing moment resistance of the joints in compression could be predicted
by means of the expression: Y(c) = 460.4 x (D)0.452 x (E)1.140 and in
tension by means of the expression: Y(t) = 614.6 x (D)0.591 X (E)1.180
where: Y = the bending moment resistance of the single-dowel joint in
particleboard (lb.-in.) D = the dowel diameter (in.) E = the depth of
dowel embedment in the face member (in.)