ASTM E466 DOWNLOAD

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. NOTE 1—The following documents, although not directly referenced in the text, are considered important enough to be listed in this practice: Current edition approved Nov. Improper methods of preparation can greatly bias the test results. This practice is limited to the fatigue testing of axial unnotched and notched specimens subjected to a constant amplitude, periodic forcing function in air at room temperature. We'll only use this information to connect you to an application expert and it won't be shared with anyone else. In view of this, no maximum ratio of area grip to test section should apply.

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Machining methods and techniques can strongly influence the fatigue life of a material.

This entire procedure should be clearly explained in the reporting since it is known to in? Thus, when embarking on a program of this nature it is essential to de? Historical Version s - view previous versions of standard.

This practice is not intended for application in axial fatigue tests of components or parts.

ASTM E466 Load Controlled Constant Amplitude Fatigue Tests of Metals

In the case of surfaces that are not smooth, aztm to the fact that some surface treatment or condition is being studied, the dimensions should be measured as above and the average, maximum, and minimum values reported.

The test forces should be monitored continuously in the early stage of the test and periodically, thereafter, to ensure that the desired force cycle is maintained.

Otherwise, the same dimensional relationships should apply, as in the case of the specimens described in 5. 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.

Touchstone is experienced in the performance of fatigue testing in almost axtm material system and at a wide variety of temperatures from cryogenic to over e66 All material variables, testing information, and procedures used should be reported so that correlation and reproducibility of results may be attempted in a fashion that is considered reasonably good current test practice. For tests run in compression, the length of the test section should be approximately two times the test section diameter to minimize buckling.

However, regardless of the nature of the forcing function, it should be reported sine, ramp, saw tooth, etc. One set of strain gages should be placed at the center of the gage length aastm detect misalignment that causes relative rotation of the specimen ends about axes perpendicular to the specimen axis.

ASTM E466 – Force Controller Constant Amplitude Axial Fatigue Testing of Metallic Materials

Originally approved in As a conservative general measure, this procedure is recommended unless: For specimens having a uniform gage length, it is advisable to asrm a similar set of gages at two or three axial positions within the gage section. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

For rectangular cross section specimens, alignment should be checked by asrm longitudinal strain gages on either side of the trial specimen at the minimum width location. To do so would require the control 4e66 balance of what are often deemed nuisance variables; for example, hardness, cleanliness, grain size, composition, directionality, surface residual stress, surface finish, and so forth.

A number in parentheses indicates the year of last reapproval. The reduced section length should be greater than three times the minimum test section diameter. By means of our fatigue testing expertise and modular product design, we will help find the solution that is right for you.

ASTM E Load Controlled Constant Amplitude Fatigue Tests of Metals

It is important that the accuracy of alignment e4466 kept consistent from specimen to specimen. The storage medium should generally be removed before testing using appropriate solvents, if necessary, without adverse effects upon the life of the specimens.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. NOTE 1—The following documents, although not directly referenced in the text, are considered important enough to be listed in this practice: This practice is not intended for application in axial fatigue tests of components or parts.

In view of this, no maximum ratio of area grip to test section should apply. 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.

For example, specimen alignment is of utmost importance and the procedure outlined in Practice E would be advantageous. The ASTM E axial load fatigue test is used to determine the effect of variations s466 material, geometry, surface condition, stress, etc. Obvious abnormalities, such as cracks, machining marks, gouges, undercuts, and so forth, are not acceptable.

Specimens can be round or flat. Give our test engineers a call today for help configuring the best test machine and accessories according to ASTM E