E Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials force~ notched specimens~ unnotched. ASTM E()e1 Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials. Last previous edition approved in as E – 96()?1. DOI: / E 2 Handbook of Fatigue Testing, ASTM STP
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Fatigue Standards and Fracture Standards
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. Also, Refsalthough they pertain to straincontrolled testing, may prove of interest since they deal with sheet specimens approximately 0. The following documents, although not directly referenced in the text, are considered important enough to be listed in this practice: The ratio of specimen test section width to thickness should be between two and six, and the reduced area should preferably be between 0.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
One set of strain gages should be placed at the center of the asmt length to detect misalignment that causes relative rotation of the specimen ends about axes perpendicular to the specimen axis. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
The trial specimen should be rotated about its longitudinal axis, installed and checked in both orientations within the? Search and Rescue Operations Standards. Unmanned Maritime Vehicle Standards. E – 10 See all versions E Ee1 E For most conventional grips, good alignment must come about from very careful attention to design detail.
Otherwise, the same dimensional relationships should apply, as in the case of the specimens described in 5. The storage medium should generally be removed before testing using appropriate solvents, if necessary, without adverse effects upon the life of the specimens. 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.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Ee1 E e1 E E In addition to fracture toughness and strain gradient, these standards also present the procedures for determining K-R curves, stress-life and strain-life fatigue data, threshold stress intensity factors, and reference temperatures.
Assurance that surface residual stresses are minimized can be achieved by careful control of the machining procedures. NOTE 1—The following documents, although not directly referenced in the text, are considered important enough to be listed in this practice: Electrical Standards and Magnetic Conductor Standards.
ASTM’s fatigue and fracture standards provide the appropriate procedures for carrying out fatigue, fracture, and other related tests on specified materials.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Durability of Nonmetallic Material Standards.
e4666-96 E – 85 See all versions E e1 E E In the typical qstm of 10? As a conservative general measure, this procedure is recommended unless: E — 07 FIG. For rectangular cross section specimens, alignment should be checked by placing longitudinal strain gages on either side of the trial specimen at the minimum width location. Current edition approved Nov.
For example, specimen alignment is of utmost importance and FIG. However, regardless of the nature of the forcing function, it should be reported sine, ramp, saw tooth, etc. Readers are referred to Ref 1 should this occur.
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A number in parentheses indicates the year of aastm reapproval. 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.
Soap Standards and Polish Standards. To ensure test section failure, the grip cross-sectional area should be at least 1. The test section length should be approximately two to three times the test section width of the specimen. Awtm, in the longitudinal direction.
The lower the bending stresses strainsthe more repeatable the test results will be from specimen to specimen.
ASTM E Conducting Force Controlled Constant Amplitude Axial Fatigue Tests_百度文库
These fatigue and fracture standards are useful to manufacturers and other users concerned with such materials in understanding their failure and stability mechanisms. E – 10 See all versions E E – 04 See all versions E E e1 E The value of 1. Rolling Element Bearing Standards. Every effort should be made to prevent the occurrence of misalignment, either due to twist rotation of the gripsor to a displacement in their axes of symmetry.
Failure may be de? Specimens should be cleaned prior to testing with solvent s non-injurious and non-detrimental to the mechanical properties of the material in order to remove any surface oil? Fatigue Standards and Fracture Standards. This practice is limited to the fatigue testing of axial unnotched and notched specimens subjected to e4666-96 constant amplitude, periodic forcing function in air at room temperature.
Asfm is important that the accuracy of alignment be kept consistent from specimen to specimen. The test section length should be approximately two to three times the test section diameter.
These tests are conducted to examine and evaluate the behavior, susceptibility, and extent of resistance of certain materials to sharp-notch tension, tear, axial fatigue, strain-controlled fatigue, surface crack tension, creep crack, and residual strain.
The size of the gripped end relative to the gage asm, and the blend radius from gage section into the grip section, may cause premature failure particularly if fretting occurs in the grip section or if the radius is too small.
Paper Standards and Packaging Standards.
Link to Active This link will always route to the current Active version of the standard.