EurekaMag
+ Translate
+ Most Popular
Advantages and disadvantages of bordeaux mixture and of lime-sulphur used on apples in the growing season
Observations on the Umaria marine bed
10 years of hearing conservation in the Royal Air Force
Chocolate crumb - dairy ingredient for milk chocolate
Effect of daily gelatin ingestion on human scalp hair
Comparison of rice bran and maize bran as feeds for growing and fattening pigs
The composition of pampas-grass (Cortaderia argentea.)
The Accraian Series:
The mechanism of the Liebermann-Burchard reaction of sterols and triterpenes and their esters
Cerebrovascular Doppler ultrasound studies (cv-Doppler)
Toria: PT-303 - first national variety
Hair growth promoting activity of tridax procumbens
Productivity of Pekin x Khaki Campbell ducks
A stable cytosolic expression of VH antibody fragment directed against PVY NIa protein in transgenic potato plant confers partial protection against the virus
Solar treatment of wheat loose smut
Swimmers itch in the Lake of Garda
Bactofugation and the Bactotherm process
The effects of prefrontal lobotomy on aggressive behavior in dogs
Visual rating scales for screening whorl-stage corn for resistance to fall armyworm
Breakdown of seamounts at the trench axis, viewed from gravity anomaly
Kooken; pennsylvania's toughest cave
Recovery of new dinosaur and other fossils from the Early Cretaceous Arundel Clay facies (Potomac Group) of central Maryland, U.S.A
Zubor horny (Bison bonasus) v prirodnych podmienkach Slovensku
The extended Widal test in the diagnosis of fevers due to Salmonella infection
Hair of the american mastodon indicates an adaptation to a semi aquatic habitat

Effect of drilled holes on the bending strength of large dimension Douglas-fir lumber


Effect of drilled holes on the bending strength of large dimension Douglas-fir lumber



Forest products journal 53(5): 55-60



ISSN/ISBN: 0015-7473

In this study, experimental bending tests were performed on nominal 4- by 8-inch (actual 89-mm by 191-mm) lumber members to determine how a notch and holes drilled in the wide face affect edgewise bending strength. Holes were drilled at the midspan in three locations relative to the edge. The results appear to justify an allowable hole one-half the allowable knot size that is currently permitted for cedar in No. 1 Beams & Stringer grade. Furthermore, the data indicate that hole location may be as important as hole size. A 1-inch (25.4-mm) hole had about the same effect on strength as a 1-3/4-inch (44-mm) hole when the holes were 1 inch (25.4 mm) from the tension edge.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 003727492

Download citation: RISBibTeXText

Related references

Bending strength and stiffness of second-growth Douglas-fir dimension lumber. Forest products journal 41(10): 35-43, 1991

Effect of size on tensile strength of clear Douglas-Fir and Hem-Fir dimension lumber. Forest Products Journal 24(8): 32-36, 1974

Effect of single knots on tensile strength of 2- by 8-inch Douglas Fir dimension lumber. For. Prod. J 22(1): 32-6, 1972

Experimental and Statistical Evaluation of the Size Effect on the Bending Strength of Dimension Lumber of Northeast China Larch. Materials 9(2), 2016

Sampling error in the bending strength distribution of dimension lumber. Wood Science and Technology 15(3): 211-225, 1981

Bending strength and stiffness of in-grade Douglas-fir and southern pine No. 2 2 4 lumber. Canadian Journal of Forest Research 42(5): 858-867, 2012

Tensile strength of special Douglas-Fir and Hem-Fir 2-inch dimension lumber. Wood and Fiber 6(4): 305-318, 1975

Moisture content and tensile strength of Douglas fir dimension lumber. Research Paper Forest Products Laboratory, USDA Forest Service ( FPL-RP-497): ii + 33 pp., 1990

Bending strength and stiffness of metal plate splices in dimension lumber. Paper er 1992 (924067), 1992

Bending strength and stiffness of wide dimension southern pine No. 2 lumber. European Journal of Wood and Wood Products 72(6): 759-768, 2014

Rate of loading effect in bending for Douglas-fir lumber. Canada, Forintek Canada Corp : Proceedings of the first international conference on wood fracture, August 14-16, 1978 Banff, Alberta, Canada: 259-279, 1979

Effect of grade on load duration of Douglas-fir lumber in bending. Wood and Fiber Science 20(1): 146-161, 1988

Effect of incising on bending properties of Redwood dimension lumber. USDA Forest Service Research Paper, Forest Products Laboratory, Madison (FPL-259): 8, 1975

Predicting the effect of moisture content on the flexural properties of Douglas-fir dimension lumber. Wood and Fiber Science 20(1): 107-131, 1988

Effect of the diameter of pre-drilled holes on the nail-holding strength of wood and particle boards. Przemsl Drzewny 23(9): 16-18, 1972