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ASTM-E1012:2012 Edition

ASTM-E1012:2012 Edition

$44.96

E1012-12 Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application

Published By Publication Date Number of Pages
ASTM 2012 17
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1.1 Included in this practice are methods covering the determination of the amount of bending that occurs during the application of tensile and compressive forces to notched and unnotched test specimens during routine testing in the elastic range. These methods are particularly applicable to the force levels normally used for tension testing, creep testing, and uniaxial fatigue testing. The principal objective of this practice is to assess the amount of bending exerted upon a test specimen by the ordinary components assembled into a materials testing machine, during routine tests.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Significance and Use
Verification of Alignment
FIG. 1
3 FIG. 2
4 Apparatus
Strain-Gaged Alignment Transducer
5 FIG. 3
6 FIG. 3
7 Calibration and Standardization
Procedure
FIG. 3
8 FIG. 4
10 FIG. 5
11 Calculation and Interpretation of Results
FIG. 6
12 TABLE 1
13 Report and Record
A1. IMPERFECT ALIGNMENT TRANSDUCER CORRECTION
A1.1 Method for Calculating and Applying Linear Correction Factors for Imperfect Alignment Transducers
A1.2 Non Linear Correction Factors
A2. CALCULATION OF TESTING MACHINE AND ALIGNMENT TRANSDUCER CONTRIBUTIONS TO OVERALL BENDING
A2.1 Calculations for Differentiating Between Testing Machine and Alignment Transducer Bending Strain Contributions
A2.2 Testing Machine Contribution
TABLE 2
14 A2.3 Alignment Transducer Contribution
X1. SOURCES AND EFFECTS OF SPECIMEN MISALIGNMENT UNDER APPLIED AXIAL TENSILE OR COMPRESSIVE FORCES
X1.1 Source of Misalignment Under Applied Axial Tensile Forces
15 X1.2 Sources of Misalignment under Applied Axial Compressive Forces
X1.3 Effects of Misalignment on Test Results
16 X2. USE OF EXTENSOMETERS AND MECHANICAL COMPONENTS TO PERFORM BENDING ANALYSES ON UNIAXIAL TESTING FRAMES
X2.1 Use of Extensometers in Measuring Strain for Bending Analysis
REFERENCES

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