ASTM-E756 2004

$44.96

E756-04e1 Standard Test Method for Measuring Vibration-Damping Properties of Materials

Published By	Publication Date	Number of Pages
ASTM	2004	13

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Categories: 91.120.20 - Acoustics in building. Sound insulation, ASTM

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Description

ASTM E756-04e1

Historical Standard: Standard Test Method for Measuring Vibration-Damping Properties of Materials

ASTM E756

Scope

1.1 This test method measures the vibration-damping properties of materials: the loss factor, η, and Young’s modulus, E, or the shear modulus, G. Accurate over a frequency range of 50 to 5000 Hz and over the useful temperature range of the material, this method is useful in testing materials that have application in structural vibration, building acoustics, and the control of audible noise. Such materials include metals, enamels, ceramics, rubbers, plastics, reinforced epoxy matrices, and woods that can be formed to cantilever beam test specimen configurations.

1.2 This standard does not purport to address all the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

constrained-layer; damping; extensional damping; free-layer; loss factor; shear damping; shear modulus; vibration; vibration damping; Young’s modulus

ICS Code

ICS Number Code 91.120.20 (Acoustics in building. Sound insulation)

DOI: 10.1520/E0756-04E01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Method
2	Significance and Use FIG. 1 FIG. 2
3	Apparatus
4	FIG. 3 FIG. 4
5	Sampling Test Specimen Preparation Procedure
6	FIG. 5 FIG. 6 FIG. 7
7	Calculation
8	Report FIG. 8
9	Precision and Bias Keywords A1. LABORATORY ACCREDITATION A1.1 Scope X1. RATIONALE FOR USING THE VIBRATING CANTILEVER BEAM TEST METHOD X1.1 Other Test Methods FIG. 9
10	X1.2 Advantages of the Vibrating Cantilever Beam Test Method X1.3 Disadvantages of the Vibrating Cantilever Beam Test Method X2. PRACTICAL AIDS FOR TESTING X2.1 Preparation of Bare or Base Beams X2.2 Test Fixture Clamping Force X2.3 Linear Range of Excitation Force
11	X2.5 Multiple Specimen Testing to Improve Confidence X2.6 Combining Results from Sandwich Specimen Configu-ration (shear modulus) and Other Configurations (Young’s modulus) X2.7 Estimating Time of Test X3. DATA PRESENTATION USING REDUCED-FREQUENCY NOMOGRAM X3.1 X3.2 X3.3 FIG. X2.1 FIG. X3.1
12	X3.4 FIG. X3.2
13	X3.5 Reading Damping Material Properties from the No-mogram REFERENCES

Additional information

Standard Title	E756-04e1 Standard Test Method for Measuring Vibration-Damping Properties of Materials
Published Code	ASTM
Publication Date	2004
Pages Count	13
ICS Codes	91.120.20 - Acoustics in building. Sound insulation