ASTM-E1495 Historical Revision Information
Standard Guide for Acousto-Ultrasonic Assessment of Composites, Laminates, and Bonded Joints

ASTM-E1495 - 1992 EDITION - SUPERSEDED
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Standard Guide for Acousto-Ultrasonic Assessment of Composites, Laminates, and Bonded Joints
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Scope

1.1 This guide explains the rationale and basic technology for the acousto-ultrasonic (AU) method. Guidelines are given for nondestructive evaluation (NDE) of flaws and physical characteristics that influence the mechanical properties and relative strength of composite structures (for example, filament-wound pressure vessels), adhesive bonds (for example, joints between metal plates), and interlaminar and fiber/matrix bonds in man-made composites and natural composites (for example, wood products).

1.2 This guide covers technical details and rules that must be observed to ensure reliable and reproducible quantitative AU assessments of laminates, composites, and bonded structures. The underlying principles, prototype apparatus, instrumentation, calibration, testing methods, and data analysis for such assessments are covered. Limitations of the AU method and guidelines for taking advantage of its capabilities are cited.

1.3 The objective of AU is to assess subtle flaws and associated strength variations in composite structures and bonded joints. Discontinuities such as large voids, disbonds, or extended lack of contact at interfaces can be assessed by other NDE methods such as conventional ultrasonics.

1.4 Additional information may be found in the publications cited in the list of references at the end of this guide. The referenced works provide background on research, applications, and various aspects of signal acquisition, processing, and interpretation.

1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.6 This standard does not purport to address all of 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

Acoustic emission (AE) testing; Acousto-ultrasonic (AU) method; Assessment; Bonded joints; Composites; Laminates; Mechanical properties; Nondestructive evaluation (NDE); Stress wave factor; Ultrasonic testing; ICS Number Code 19.100 (Non-destructive testing); 83.180 (Adhesives)

To find similar documents by ASTM Volume:

03.03 (Nondestructive Testing)

To find similar documents by classification:

19.100 (Non-destructive testing Including testing equipment: industrial apparatus for X-ray and gamma radiography, penetrant flaw detectors, etc. Non-destructive testing of welded joints, see 25.160.40 Industrial radiographic films, see 37.040.25 Non-destructive testing of metals, see 77.040.20)

83.180 (Adhesives Including adhesive tapes Adhesive tapes for electrical insulation purposes, see 29.035.20)

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Document Number

ASTM-E1495-92

Revision Level

1992 EDITION

Status

Superseded

Modification Type

Revision

Publication Date

Sept. 15, 1992

Document Type

Guide

Page Count

8 pages

Committee Number

E07.04