ASTM D 7766/D7766M : 2016 : REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Standard Practice for Damage Resistance Testing of Sandwich Constructions
13-06-2023
English
03-06-2016
CONTAINED IN VOL. 15.03, 2016 Gives instructions for modifying laminate quasi-static indentation and drop-weight impact test methods to determine damage resistance properties of sandwich constructions.
Committee |
D 30
|
DocumentType |
Redline
|
Pages |
9
|
PublisherName |
American Society for Testing and Materials
|
Status |
Superseded
|
SupersededBy |
1.1This practice provides instructions for modifying laminate quasi-static indentation and drop-weight impact test methods to determine damage resistance properties of sandwich constructions. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb, truss cores and fiber-reinforced cores).
1.2This practice supplements Test Methods D6264/D6264M (for quasi-static indentation testing) and D7136/D7136M (for drop-weight impact testing) with provisions for testing sandwich specimens. Several important test specimen parameters (for example, facing thickness, core thickness and core density) are not mandated by this practice; however, repeatable results require that these parameters be specified and reported.
1.3Three test procedures are provided. Procedures A and B correspond to D6264/D6264M test procedures for rigidlybacked and edge-supported test conditions, respectively. Procedure C corresponds to D7136/D7136M test procedures. All three procedures are suitable for imparting damage to a sandwich specimen in preparation for subsequent damage tolerance testing.
1.4In general, Procedure A is considered to be the most suitable procedure for comparative damage resistance assessments, due to reduced influence of flexural stiffness and support fixture characteristics upon damage formation. However, the selection of a test procedure and associated support conditions should be done in consideration of the intended structural application, and as such Procedures B and C may be more appropriate for comparative purposes for some applications.
1.5The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5.1Within the text the inch-pound units are shown in brackets.
1.6This 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.
ASTM D 7136/D7136M : 2015 : REDLINE | Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer Matrix Composite to a Drop-Weight Impact Event |
ASTM D 6264/D6264M : 2017 : REDLINE | Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer-Matrix Composite to a Concentrated Quasi-Static Indentation Force |
ASTM D 7136/D7136M : 2015 : REDLINE | Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer Matrix Composite to a Drop-Weight Impact Event |
ASTM E 177 : 2014 : REDLINE | Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods |
ASTM D 5229/D5229M : 2014-06 | TEST METHOD FOR MOISTURE ABSORPTION PROPERTIES AND EQUILIBRIUM CONDITIONING OF POLYMER MATRIX COMPOSITE MATERIALS |
MIL-HDBK-787 Base Document:1988 | NONDESTRUCTIVE TESTING METHODS OF COMPOSITE MATERIALS - ULTRASOUND |
ASTM D 792 : 2013 : REDLINE | Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement |
MIL-HDBK-732 Revision A:1991 | NONDESTRUCTIVE TESTING METHODS OF COMPOSITE MATERIALS - ACOUSTIC EMISSION |
MIL-HDBK-731 Base Document:1984 | NONDESTRUCTIVE TESTING METHODS OF COMPOSITE MATERIALS - THERMOGRAPHY |
MIL-HDBK-17-3 Revision F:2002 | COMPOSITE MATERIALS HANDBOOK - VOLUME 3: POLYMER MATRIX COMPOSITES MATERIALS USAGE, DESIGN, AND ANALYSIS |
ASTM D 3171 : 2015 : REDLINE | Standard Test Methods for Constituent Content of Composite Materials |
ASTM D 6264/D6264M : 2017 : REDLINE | Standard Test Method for Measuring the Damage Resistance of a Fiber-Reinforced Polymer-Matrix Composite to a Concentrated Quasi-Static Indentation Force |
MIL-HDBK-728-1 Base Document:1985 | NONDESTRUCTIVE TESTING |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.