ASTM D3043 PDF
ASTM D – 00 Structural Panels in Flexure – Download as PDF File .pdf), Text File .txt) or read online. ASTM D – Standard Test Methods for Structural Panels in Flexure. GPa). Wilson and Parasin (26) compared two widths of ply wood ( and mm) using the pure-moment bending test in ASTM D (3).
|Published (Last):||19 October 2018|
|PDF File Size:||2.50 Mb|
|ePub File Size:||18.69 Mb|
|Price:||Free* [*Free Regsitration Required]|
In some cases closer spacing may be entirely satisfactory.
Rather it is intended that the nominal thickness be used for determining the specimen length and span. It is equally well suited for testing uniform or clear material whenever specimen size is adequate. By means of our testing expertise astmm modular product design, we will help find the solution that is right for you.
The specimen may be the same as that for moisture content determination but must have volume of at least 1 in.
ASTM D3043 Flexural Structural Panel Testing Machine
Test specimens are strips cut from panels that are up to 4′ by 8′. The depth of the specimen shall be equal to the thickness of material, and the width shall be 1 in. We are confident that we have what you are looking for. Also like Method A, this method uses small specimens in a center-point simple span test configuration.
The length shall be 2 in. The method is frequently used for quality assurance testing of oriented strand board.
An approximate correction can be made. If inspection of the edges of panels containing veneer reveals the presence of a knot in any of the inner plies, select a second specimen.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Structural panels in use include plywood, waferboard, oriented strand board, and composites of veneer and of wood-based layers. Significant errors in modulus of rupture can occur when nominal moment is used see Appendix X1.
A 3 or 4 point bend testing jig may be used to perform the respective test. Method C generally is preferred where asym of test material permits. One-eighth-inch three-millimetre pins project perpendicularly from the face of the panel held in a vertical position by the loading frames.
Moisture content samples from large specimens of Method C shall have minimum area of 8 in. Control of Moisture Content 4. The strips can be of varying sizes, however it is important that technicians record and use the same size specimen when comparing results.
When nonuniform material containing density variation, knots, knot-holes, sloping grain or other sources of large variability is tested for general construction and industrial use, a minimum satm width of 24 in.
The length, width and thickness shall be measured within an accuracy of 0. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
ASTM D – 00 Structural Panels in Flexure – Free Download PDF
For a discussion of these errors, their effects, and methods for reducing them, refer to Appendix X1. Similar requirements apply to the load axis.
Deflection of mid span relative to two points just inside the load points is measured with a dial gage or transducer thus giving deformation due to pure bending and unaffected by shear deformation. NOTE 4—These requirements dictate use of specialized equipment which may not be readily available.
Measurements shall be to the nearest 0. Each gage housing is provided c3043 small ball bearings which permit free movement of the angular sensing gage along the rod while holding it in fixed angular relationship to it.
Deflection and modulus of elasticity obtained ast, this method are related to flexural stress only and do not contain a shear component. Method C—Large Panel Test. Four methods of tests are included:.
We need your help! satm
Resulting deflection at mid span is measured. Please copy and paste this embed script to where you want to embed Embed Script. The angular rotation method uses special angular rotation measuring instruments to determine rotational deformation of the portion of the panel subjected to pure bending.
The principle of a commercially available flexure testing machine complying with these requirements is diagrammed in d304 figure below. Significance and Use 3. Frames are free to move toward or away from each other during the test to preclude application of other than pure moments to the center span of the panel.
Between loading frames deflection of the neutral axis follows a circular arc. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Specimen size and span above certain minimums are quite flexible. All methods are applicable to material that is relatively uniform in strength and stiffness properties.
These errors are not present in Method C. Design of end supports shall place the center of rotation near the neutral axis of the specimen of average thickness. Several factors including moisture content and specific gravity can affect the calculations. Give our test engineers a call today for help configuring the best test machine and accessories according to your standard. Moments applied to fail specimens tested by Method A, Aztm or D in which large deflections occur can be considerably larger than nominal.
These panels can be of different materials used to form plane structures such as floors, walls and ceilings. Force range of 5 kN to kN 1, lbf c3043lbf Adjustable test space The most popular choice for static tension and compression tests These dual column testers are available in both tabletop and floor standing models. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn.
Significant errors in modulus of rupture can occur when nominal moment is used see Appendix X1.