ASTM. E is applicable for linear variable displacement transformers ASTM E also has multiple accuracy classifications similar to ASTM E83 for the. THE FOLLOWING DESCRIBED EQUIPMENT IN ACCORDANCE WITH. ASTM- E AND UTS SOPRev CERTIFICATE NUMBER: CR# GWASTM E Standard Practice for Verification and Classification of Extensometer Systems_自然科学_专业资料。GWASTM E
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The maximum allowable error in each class is the?
The component due to the extensometer system resolution at 10 mm, uR1 is: Extensometer systems are classi? Current edition approved May 1, If these are known and the temperature is known, then the low-temperature gage length can be calculated. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Proceed to Checkout Continue Shopping. If the machine system resolution is 0.
Extensometer results used below the lowest veri? The practice is applicable only to instruments that indicate or record values that are proportional to changes in length corresponding to either tensile or compressive strain.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. If the reading does not return to zero, adjust and repeat the procedure until the reading does return to zero. Extensometer systems shall be categorized in three types according to gage length: As an alternative, after individual veri? The resolution of the extensometer system at 0 mm atsm 0.
NOTE 4—An example of an extensometer ast is described by 5. Add to Alert PDF. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM E83 – 16
Extensometer systems shall be classified in accordance with the requirements as to maximum error of strain indicated: See procedures as described in Test Methods E Please first log in with a verified email before subscribing to alerts. NOTE 5—Extensometers used for high-temperature testing may be veri? If the extensometer is used with closed loop test equipment in strain control, the backlash could result in large tension or compression loads during the initial part of the loading curve. Active view current version of standard Translated Standard: A strain-gaged specimen can be used as a reference, or a specimen with known properties could be used to verify the extensometer results.
NOTE 1—Bonded resistance strain gages directly bonded to a specimen cannot be calibrated or veri? For an extensometer with a gage length of 1 in. In such cases, the extensometer system shall be veri?
They may be veri? If the document is revised or amended, you will be notified by email. It is the responsibility of xstm user of this standard to establish appropriate safety and health axtm and determine the applicability of regulatory limitations prior to use. In general, both the amplitude and phase of the instrument may change as a function of frequency effects.
Note 1—Bonded resistance strain gauges directly bonded to a specimen cannot be calibrated or verified with the apparatus described in this practice for the verification of extensometers having definite gauge asstm. For variable gage length extensometers, state the gage lengths veri? Extensometers ashm contain large mechanical elements may have inertial effects which at high frequencies cause forces on the attachment points to the specimen. We have no amendments or corrections for this standard.
Allow sufficient time for the veri? Unless it can be demonstrated wstm autographic extensometers and recorders of a given type may be used interchangeably without introducing errors that would affect the classi? Subscription pricing is determined by: The gage length can be calculated asfm the known properties of the reference specimen and compared with the measurement. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Spot checks may be performed on ranges of interest or at strain levels of interest utilizing a veri? Manufacturers of extensometers should provide performance characteristics of their instruments under typical operating test conditions. If the dial micrometer is tapped during the veri?
Bonded resistance strain gauges directly bonded to a specimen cannot be calibrated or verified with the apparatus described in this practice for the verification of extensometers having definite gauge points.
This will insure similar thermal and optical conditions exist and, hence, similar effects on the strain measurement should be observed. An extensometer system may be one of three types. Your comments are invited either for sstm of this standard or for additional standards and should be addressed to ASTM Aetm Headquarters.
An extensometer of known dynamic properties can be used in parallel with the device in question, and a comparison of the results can be made as a function of frequency. Already Subscribed to this document. There are to be at least?
These errors can be due to dimensional changes from reproduction or humidity changes. Strains in the second successive run are to be approximately the same as those of the? ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
ASTM E83 – 10a Standard Practice for Verification and Classification of Extensometer Systems
A possible method adtm verify this at high temperature is the use of a precision reference specimen with known gage length placement of marks or? If readout devices are always used in combination, individual veri? The practice is applicable only to instruments that indicate or record values that are proportional to changes in length corresponding to either tensile or compressive strain.