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).

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ASTM D3043 Flexural Structural Panel Testing Machine

Except for effects of nonuniformity of properties within a panel, specimen dimensions do not tend to influence test results. Specimen size and span above certain minimums are quite flexible. Structural panels asfm use include plywood, waferboard, oriented strand board, and composites of veneer and of wood-based layers.

Method C is a Pure Moment Test also known as a two point bend test. In accordance with Test Method Dthe test rate shall be such that the sample target failure load would be achieved in approximately 1 min Note 7. It is equally well suited for c3043 uniform or clear material whenever specimen size is adequate. If the material under test deviates from a plane, laterally adjustable supports shall be provided see Figs. It is the responsibility v3043 the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D – 17 Standard Test Methods for Structural Panels in Flexure

Suitable equipment of the transducer type is illustrated in Fig. In cases where excessive local deformation may occur, suitable bearing plates shall be used. Rather, it is intended that the nominal thickness of the material under test should be used for determining the specimen length. Similar requirements apply to the load axis. Significant astmm in modulus of rupture can occur when nominal moment is used see Appendix X1.

This standard ashm subject to revision at any time by the asrm technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. These pins, threaded at one end and having a small rectangular flange, are attached to the panel x3043 by screwing them into small holes in the face of the panel until the flange is drawn tightly against the face or by inserting the pin through a hole in the panel and drawing the flange tight by means of a nut on the opposite side satm the panel.

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However, Method B may be used to evaluate certain features such as core gaps and veneer joints in plywood panels where effects are readily projected to full panels. 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. It is equally well suited for testing uniform or clear material whenever specimen size is adequate. 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.

Calculate the radius of curvature zstm the method discussed in 7. Moments applied to fail specimens tested by Method A, B or D in which large deflections occur can be considerably larger than nominal.

ASTM D – Structural Panel Flex Test

Significant errors in modulus of rupture can occur when nominal moment is used see Appendix X1. Take deflections by the methods indicated in Fig. When the principal direction of the face plies, laminations, strands, or wafers is parallel to the span, the length 2 Annual Book of ASTM Standards, Vol Four methods of tests are included:. 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.

Limitation on size may be imposed by equipment size or moment capacity or size of available material. Significance and Use 3. A 3 or 4 point bend testing jig may be used to perform the respective test.

EI 5 MR 8 where: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 4—These requirements dictate use of specialized equipment which may axtm be readily available. Also like Method A, this method uses small specimens in a center-point simple span test configuration.

This method uses a span to depth ratio, specimen width, d33043 fixture and test speed that make the method well suited for quality assurance. Variables Influencing Flexure 9.

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ASTM D 3043 – 00 Structural Panels in Flexure

Resulting deflection at mid span is measured. We need your help to maintenance this website.

Reading of the dial gage to the nearest 0. NOTE 5—These limits are liberal in relation to conventional equipment in order to allow for laboratory fabrication and inexperience in the design of precision v3043 moment machines.

The axes of these surfaces shall remain parallel and at least one of them shall be free to turn about its axis or be loaded through rollers to prevent the application of friction forces to the surface of the specimen.

Comparisons of results of plywood, veneer composites, and laminates with solid wood or other plywood constructions will be greatly assisted if the thickness of the individual plies is measured to permit computation of section properties. Rather it is intended that the nominal thickness be used for determining the specimen length and span. Four methods of tests are included: Please fill this form, we will try to respond as soon as possible.

Until further innovations are made in pure bending test equipment, use of cable and pulley equipment of this type, either purchased or constructed at the laboratory, offers the only practical means of implementing this method. The choice of method will be dictated by the purpose of the test, type of material, and equipment availability.

Also like Method A, this method uses small specimens in a center-point simple span test configuration. Structural panels in use include plywood, waferboard, oriented strand board, and composites of veneer and of wood-based layers.

Use of linear differential transformers as transducers permits primaries and secondaries to be wired to produce a single signal proportional to their sum for indication or recording.

Have a question about conducting the test for this standard? The width of the loading block shall exceed the width of test specimens.