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, astj you may attend. NOTE 4—These requirements dictate use of specialized equipment which may not be readily available.

Friction forces that tend to resist motion of the axes of the loading frames during a test may also cause significant errors. A spacing of at least 24 and 12 times specimen thickness is recommended for specimens with the principal direction parallel and perpendicular to span respectively. Active view current version of standard. Measured deformation and elastic constants are free of shear deformation effects; and panels can be bent to large deflections without incurring errors from horizontal force components occurring in other methods.

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.

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

Measure to the nearest 0. Reading of the dial gage to the nearest 0. An electronic transducer could be substituted for the dial gage for direct recording if d3034 accuracy is adequate. It is well suited to investigations of many variables that influence properties uniformly throughout the panel in controlled studies and to test small, defect-free control specimens cut from large panels containing defects tested by the large-specimen method.

By means of our testing expertise and modular product design, we will help find the solution that is right for you. The depth of the specimen shall be equal to the thickness of material, and the width shall be 1 in. 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.

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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.

Measurements shall be to the nearest 0. Deflection and modulus of elasticity obtained from this method are related to flexural stress only and do not contain a shear component.

Rather, it is intended that the nominal thickness of the material under test should be used for determining the specimen length.

The length shall be 2 in. Also like Method A, this method uses small specimens in a center-point simple span test configuration.

ASTM D 3043 – 00 Structural Panels in Flexure

The input shaft of each rotation gage is fitted with a flange and small V-blocks which rest on the pins projecting from the panel at each gage point, thus transmitting the angular rotation of the panel to the gage and supporting the rotation gage-reference rod assembly. Method B is a 4 point test with Two-Point Flexure in the middle of the board.

Total deflection, and modulus of elasticity computed from it, include a relatively constant component attributable to shear deformation. Bearing points shall be rounded d0343 they contact the specimen. We are a non-profit group that run this website to share documents.

State clearly the method employed in the report if modulus of elasticity is included. The supports shall be rounded or shall be knife edges provided with rollers and plates under the specimen at these points. Construction of a suitable end support using small roller bearings in conjunction with a plate which clips to the end of the specimen is illustrated in Fig.

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 for containers, crates, or pallets; or structural components such as stress-skin panels.

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We offer machines, apparatus, testers, tensile grips, test fixtures, clamps, holders, jigs, faces, jaws, extensometers, environmental and humidity chambers, furnaces, baths and custom solutions for unique applications. Carefully controlled investigations may require specification or construction of more precise equipment. Deflection and modulus of elasticity obtained from this method are related to flexural stress only and do not contain a shear component. Material having high rolling shear strength or having all its plies, laminations, strands, or wafers parallel to span may use closer spacing between loads and supports.

The choice of method will be dictated by the purpose of the test, type of material, and equipment availability. It is equally well suited for testing uniform or clear material whenever specimen size is adequate.

State clearly the method employed in the report. Radius of curvature of bearing plate or block shall not be so large as to cause bridging as the specimen bends. Please fill this form, we will try to respond as soon as possible. In cases where excessive local deformation may occur, suitable bearing plates shall be used.

If individual gage readings are taken, at least 12 and preferably 15 or more load and deflection readings shall be taken below approximate proportional limit or for determining specimen stiffness.

Please help us to share our service with your friends. Four methods of tests are included: Variables Influencing Flexure 9.

The method is frequently used for quality assurance testing of oriented strand board. Method C is a Pure Moment Test also known as a two point bend test.

Moisture content samples from large specimens of Method C shall have minimum area of 8 in. These errors are not present in Method C.

Qstm is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.