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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Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Structural panels in use include plywood, waferboard, oriented strand board, aastm composites of veneer and of wood-based layers. If individual gage readings are taken, at least 12 and atm 15 or more load and deflection readings shall be taken below approximate proportional limit or for determining specimen stiffness.
Link to Active This link will always route to the current Active version of the standard. These properties are of primary importance in most structural uses of panels whether in construction for floors, wall sheathing, roof decking, concrete form, or various space plane structures; packaging and materials handling dd3043 containers, crates, or pallets; or structural components such as stress-skin panels.
The midordinate deflection method employs readily available equipment to measure curvature. Method C generally is preferred where size of test material permits.
ASTM D3043 Flexural Structural Panel Testing Machine
It is equally well suited for testing uniform or clear material whenever specimen size is adequate. This method uses a span to depth x3043, specimen width, test fixture and astn speed that make the method well suited for quality assurance.
The test proceeds at a constant rate of head motion until either sufficient deflection data in the elastic range have axtm gathered or until specimen failure occurs.
Method C generally is dd3043 where size of test material permits. Thank you for interesting in our services. To eliminate plate action when wider specimens are tested, the specimen width shall not exceed one third of the span length and precaution shall be taken to ensure uniform bearing across the entire width of the specimen at the load and reaction points.
Take deflection readings to the nearest 0. Specimen size and span above certain minimums are quite flexible. It should be noted that the span is based on the nominal thickness of the material and it is not intended that the spans be changed for small variations in thickness.
Specimen size and span above certain minimums are quite flexible. Method C—Large Panel Test.
Apply equal and opposite pure moments to each end of the panel by frames. Design of end supports shall place the center of rotation near the neutral axis asgm the specimen of average thickness. This standard is subject to revision at any time by the responsible technical committee asrm must be reviewed every five years and if not revised, either reapproved or withdrawn. For a discussion of these errors, their effects, and methods for reducing them, refer to Appendix X1. It may be based on the entire cross section, only the layers parallel to the span or may include all layers weighted in proportion to the modulus of elasticity in the direction parallel to span.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The depth of the specimen shall be equal to the thickness of material, and the width shall be 1 in.
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Conditioning of test material at controlled atmospheres to control test moisture content and determination of specific gravity are recommended. Force range d30433 5 kN to kN 1, lbf tolbf 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.
These errors are not present in Method C. An approximate correction can be made. 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 astmm width of 24 in. 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. Other comments as well as those of 5.
ASTM D – Structural Panel Flex Test
These pins, threaded at one end and having a small rectangular flange, are attached to the panel either 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 of the panel.
Please fill this form, we will try to respond as soon as possible. This method uses a span to depth ratio, specimen width, test fixture and test speed that make the method well suited for quality assurance.
There are many sizes available and they are usually specified by the customer. If the material under test deviates from a plane, laterally adjustable supports shall be provided see Figs.
An approximate correction can be made. NOTE 3—Establishment of a span-depth ratio is required to allow an accurate comparison of test values for materials of different thicknesses. Friction forces that tend to resist motion of the axes of the loading frames during a test may also cause significant d33043.
The characteristically violent failures of large panels will normally dictate removel of delicate measuring instruments from the panel when sufficient data in the elastic range has been obtained.
Measure to the nearest 0. It may be based on the entire cross section, may include only the moment of inertia of layers parallel to span, or may include all layers weighted in accordance with modulus of elasticity in the direction of bending stress.
D load points plus 48 times specimen thickness or 24 times specimen thickness for the principal direction parallel or perpendicular respectively. Specimen size and span above certain minimums are quite flexible. Originally published as D — These errors are not present in Method C. Only Method C should be used to test material suspected of having strength or stiffness variations within a panel caused by density variations, knots, knot-holes, areas of distorted grain, fungal attack, or wide growth variations.
The test is simple and flexible, and results are directly relatable to basic properties at large deformations. Space bars of the loading frames sufficiently to prevent shear failures between where: