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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Medical Device Standards and Implant Standards. The following documents, although not f466-96 referenced in the text, are considered important enough to be listed in this practice: Because of this, a circular cross section may be preferred if material form lends itself to this con? Fillet undercutting can be readily determined by inspection.

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. Glass Standards and Ceramic Standards. One exception may be where these parameters are under study. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

ASTM E Conducting Force Controlled Constant Amplitude Axial Fatigue Tests_百度文库

E e1 E E E Appendix X1 presents an example of a machining procedure that has been employed on some metals in an attempt to e466-69 the variability of machining and heat treatment upon fatigue life.

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. E e1 E E A caveat is given regarding d466-96 gage section with sharp edges that is, square or rectangular cross section since these are inherent weaknesses because the slip of the grains at sharp edges is not con?

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The test section length should be approximately two to three times the test section width of the specimen. In addition to fracture toughness and strain gradient, these standards also present the procedures for determining K-R curves, stress-life and strain-life qstm data, threshold stress intensity factors, and reference temperatures. Electrical Standards and Magnetic Conductor Standards.

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The area restrictions should be the same as for the specimen described in 5. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Sports Standards and Recreation Standards. Oxygen Enriched Atmospheres Standards.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Historical Version s – view previous versions of standard.

Current edition approved Nov. No circumferential machining should be evident when viewed at approximately magni? E — 07 with as much economy as prudent.

To do so would require the control or balance of what are often deemed nuisance variables; for example, hardness, cleanliness, grain size, composition, directionality, surface residual stress, surface?

Durability of Nonmetallic Material Standards. To ensure test section failure, the grip cross-sectional area should be at least 1.

Asstm, the design should meet certain general criteria outlined below: Improper methods of preparation can greatly bias the test results. The reduced section length should be greater than three times the minimum test section diameter.

For specimens having a uniform gage length, it is advisable to place a similar set of gages at two or three axial positions within the gage section. Last previous edition approved in as E — 96 ? Soap Standards and Polish Standards. This entire procedure should be clearly explained in the reporting since it is known to in? Ra, in the longitudinal direction.

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Fatigue Standards and Fracture Standards

Fatigue Standards and Fracture Standards. However, regardless of the nature of the forcing function, it should be reported sine, ramp, saw tooth, etc.

It is beyond the scope of Practice E to extrapolate beyond this range or awtm extend this assumption to other materials systems that may be viscoelastic or viscoplastic at ambient test temperatures and within the frequency regime mentioned. Resilient Floor Covering Standards. The varying stress amplitude, as determined by a suitable dynamic veri? As a cautionary note, should localized yielding occur, 4e66-96 Obvious abnormalities, such as cracks, machining marks, gouges, undercuts, and so forth, are not acceptable.

The storage medium should generally be removed before testing using appropriate solvents, if necessary, without adverse effects upon the life of the specimens. Road Standards and Paving Standards. Thus, when embarking on a program of this nature it is essential to define and maintain consistency a priori, as many e46696 as reasonably possible, with as much economy as prudent.

Ee1 E e1 E E A number in parentheses indicates the year of last reapproval. E – 10 See all versions E Ee1 E Astk 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. E e1 E E