Nail-withdrawal resistance of American woods. Download PDF EPUB FB2
NAIL-WITHDRAWAL RESISTANCE OF AMERICAN WOODS 1 By Forest Products Laboratory, Forest Service U.S. Department of Agriculture Resistance of a nail to direct withdrawal from a piece of wood is intimately related to the density or specific gravity of the wood, the diameter of the nail, and the depth it has penetrated.
The values given herein are for nails driven perpendicular to the grain of the wood. When the nail is driven parallel to the wood fibers --into the end of the piece -- withdrawal resistance in the softer woods drops to75 or even 50percentof the resistance obtained when the.
Other Scholarly Content Nail-withdrawal resistance of American woods Public Deposited. Analytics × Add to. The values given herein are for nails driven perpendicular to the grain of the wood.
When the nail is driven parallel to the wood fibers -- into the end of the piece -- withdrawal resistance in the softer woods drops to 75 or even 50 percent of the resistance obtained when the nail is. Nail Withdrawal Strength of Plywood and OSB Objectives It is well known that the resistance of a nail shank to direct withdrawal from wood-based materials is a function of several factors, including material density, nail diameter, and depth of penetration (FPL, ).File Size: KB.
They determined that nail withdrawal resistance at static nailing is higher than dynamic nailing. They concluded that nail withdrawal resistance decreases with time in the density of wood in both nailing types.
It was also found that the nail withdrawal resistance is maximized for tangentially nailing by: Although the equation for nail-withdrawal resistance indi-cates that the dense, heavy woods offer greater resistance to nail withdrawal than do the lower density ones, lighter species should not be disqualified for uses requiring high resistance to withdrawal.
As a rule, the less dense species doFile Size: 1MB. Determination of Screw and Nail Withdrawal Resistance of Some Important Wood Species Article (PDF Available) in International Journal of Molecular Sciences 9(4) May with 1, ReadsAuthor: Alper Aytekin.
has low nail-withdrawal resistance but has little tendency to split under the action of nails or screws. It's easily worked and fairly easy to finish to a smooth surface.
Aspen glues easily with a variety of glues and under a wide range of gluing conditions. It ranks among the best hardwoods in painting Size: 46KB. Separating Specific Woods. Ash Wood: Black, White, and Everything in Between; Brazilian Rosewood, East Indian, and Other Rosewoods; Elm Wood: Hard and Soft.
Working Properties: Grand fir is easy to work, is moderately low in nail withdrawal resistance, good in paint-holding properties, and easily glued. Durability: Heartwood is slightly resistant to Author: Harry Alden. The Politically Incorrect Guide to American History makes it quite clear that liberal professors have misinformed our children for generations.
Professor Thomas E. Woods, Jr. takes on the most controversial moments of American history and exposes how history books are merely a series of clichés drafted by academics who are heavily biased Cited by: 9. Lateral Nail Resistance Test Nail Withdrawal Test Nail-Head Pull-Through Test Direct Screw Withdrawal Test Hardness Test Hardness Modulus Test Shear Strength in the Plane of the Board Glue-Line Shear Test (Block Type) Falling Ball Impact Test Abrasion Resistance by the U.S.
Navy Wear Tester File Size: KB. Books at Amazon. The Books homepage helps you explore Earth's Biggest Bookstore without ever leaving the comfort of your couch. Here you'll find current best sellers in books, new releases in books, deals in books, Kindle eBooks, Audible audiobooks, and so much more.
American Wood-Preservers Association. Book of standards. Stevensville, MD: American Wood- of American woods. Technical Note Washington, DC: US. Department of Agricul- Nail-withdrawal resistance of American woods. Research Note FPL Madison, WI.
AWC Releases Updated Report on Fire Resistance of Wood Members and Assemblies AWC Partners with Fire Groups on Distance Learning. Liberation marks the umpteenth time I have liberated France in books, but there was a different take in this story.
It was the real story of the Resistance - and I hadn’t heard much positive about them. This account puts things in perspective. Good s: A new testing apparatus was designed and a test method developed to enable the application of axial loads, lateral loads, and controlled ratios of axial to lateral loads to nailed wood joints.
The effect of axial load components on ultimate lateral load, joint deformations and several slip moduli were evaluated. These load-slip parameters were determined for three species of wood, three depths Cited by: 9. Example - Nail Withdrawal Load.
The specific gravity of Canadian Spruce is The diameter of 20D nail is inches. The allowable withdrawal force per inch of penetration can be estimated as. F = () 5/2 ( in) = 38 lb/in (lb per inch penetration) Nail Withdrawal Force Calculator Imperial Units. SG - Specific Gravity of oven.
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My library. ASTM's wood standards are instrumental in the evaluation and testing of the physical and chemical properties of a wide range of wood and wood-based products. Wooden materials covered here include timber, lumber, wood-base fibers, commercial softwoods and hardwoods, wood preservatives, laminated timber, and composite lumber to name a few.
The nail withdrawal resistance and wearing resistance showed a similar trend. The MOE seemed to be an exception. After heat-treatment, the MOE values of undensified and densified wood were decreased by 15 and 24%, by: Six selections from the book (under the title "A Massachusetts Hermit") appeared in advance of publication in the Ma issue of the New York Daily Tribune.
Ticknor and Fields published Walden; or, Life in the Woods in Boston in an edition of 2, copies on August 9, A second printing was issued inwith multiple printings. Sitti and R.S. Fearing. Synthetic gecko foot-hair micro/nano-structures for future wall-climbing robots.
In Proceedings of the IEEE International Conference on Robotics and Automation, volume 1, pp. –Piscataway, NJ, USA: IEEE, Cited by: If you’re interested in getting all that makes The Wood Database unique distilled into a single, real-world resource, there’s the book that’s based on the website—the best-seller, WOOD!Identifying and Using Hundreds of Woods contains many of the most popular articles found on this website, as well as hundreds of wood profiles—laid out with the same clarity and.
SS-GB is an alternative history novel by Len Deighton, set in a United Kingdom conquered and occupied by Germany during the Second World novel's title refers to the branch of the Nazi SS that controls was first published in Author: Len Deighton.
Scope. Part A General Test Methods for Evaluating the Basic Properties of Wood-Base Fiber and Particle Panel Materials. These test methods cover the determination of the properties of wood-base fiber and particle panel materials that are produced as mat-formed panels such as particleboard, medium-density fiberboard, hardboard, and oriented strand board.
RE: Nail withdrawal capacity for wind uplift BlastResistant (Structural) 6 Mar 10 I don't have any problems with nailing directly into plywood sheathing or using NDS nail withdrawal values, but I do have a problem with the actual nail withdrawal values themselves.
The National Building Code of Canada (NBC) provides prescriptive guidance for fastening typical wood-frame construction. At the same time, the Canadian Standards Association (CSA) O, Engineering Design in Wood, provides rational mechanics-based analysis methods for engineered design.
Both of these resources rely on CSA B, Wire Nails, Spikes, and Staples, as the reference. The withdrawal resistance of a nail driven into the end grain of a wood member is. A. Lower than the withdrawal resistance when driven into the side grain.
B. The same as the withdrawl resistance when driven into the side grain. C. Greater than thewithdrawl resistance when driven into the side grain. D. Greater than the shear resistance.The authentic art of Indian bow-making is explained and illustrated by Al Herrin, a Cherokee Indian in his book "Cherokee Bows and Arrows".
Al prefers osage-wood above all others because of it's density, ruggedness, and longevity. Osage-wood makes an attractive bow as well.The strength of North American woods / (Washington, D.C.: U.S.
Dept. of Agriculture, ), by Harold S. Betts and United States Department of Agriculture (page images at HathiTrust) Use and abuse of wood in house construction / (Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, ), by R. P. A. Johnson and E. M. Davis (page.