ASTM D897 PDF

ASTM D Standard Test Method for Tensile Properties of Adhesive Bonds. ASTM D determines comparative tensile properties of the adhesive bonds of metal to metal. ASTM D is primarily comparative. However, it does have. ASTM D TENSILE PROPERTIES OF ADHESIVE BONDS. This test method covers the determination of the comparative tensile properties of the adhesive.

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ASTM D e1. A number in parentheses indicates the year of last reapproval.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. Unless otherwise agreed upon by the manufacturer and the purchaser, the bonding conditions shall be prescribed by the manufacturer of the adhesive. In order to ensure that complete information is available to the individual conducting the tests, the manufacturer of the adhesive shall furnish numerical values and other speci?

It should be stated whether this temperature is that of the bond line, or of the atmosphere at which the assembly is to be maintained.

ASTM D Tensile Strength Test Equipment for Metal to Metal Adhesive Bonds

A range may be prescribed for any variable by the manufacturer of the adhesive if it can be assumed by the test operator that any arbitrarily chosen value within such asfm range or any combination of such values for several variables will be acceptable to both the manufacturer and the purchaser of the adhesive.

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The values given in parentheses are for information only.

It is the responsibility of the user of this standard to establish appro1 This test method adtm under the jurisdiction of ASTM Committee D14 on Adhesives and is the direct responsibility of Subcommittee D Current edition approved Oct.

Originally published as D — Last previous edition D — However, it does have application as a discriminator in determining variations in awtm surface preparation parameters and adhesive environmental durability. The test method has found applications in controlling surface preparations, primer, and adhesive systems for determining strength properties of tested systems.

Adhesive Bond Tension Test Fixture

Use the self-aligning type. The grips shall be attached to the?

While the design of grips of this type is optional, one that has been found satisfactory awtm shown in Fig. Reuse of the specimens is allowed by resurfacing those surface areas that contained the adhesive.

Do this by grinding the adhesive-faced surface? Metals conforming to the following ASTM speci? Test a substitute specimen to replace the discarded result. It is preferable to grind all metal specimens at the same d987. Start test loading of the specimen as quickly as possible.

This will be based on a visual inspection. NOTE 1—Cohesive failure may be obtained by observing how much of the failure has occurred in the adhesive itself.

That is, if the cement has adhered to the metal test pieces and no voids are visual, it represents a percent cohesive failure. Adhesion failure refers to the lack of adhering to metals being fastened. Contact failure refers to lack of glue lines being in contact due to uneven surfaces, poor pressure distribution, etc.

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Describe the method of obtaining the thickness of the adhesive layer including procedure, location of measurements, and range of measurements. Precision and Bias Express the result in grams per square millimetre pounds per square inch and if possible report to three signi?

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This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. 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 aastm below.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefax d8897, or service astm.