Standard Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials

Importancia y uso:

4.1 This guide provides the recommended data elements for the identification of fiber-reinforced composite materials and the information which is considered essential to uniquely describe a fiber, filler, or core material.

4.2 The intent of this guide is to provide sufficient detail that values are known for the material parameters that may influence test results or material property values.

4.3 This guide is for material identification and description only. It does not include the recommended data elements for mechanical test data or other specific types of test data. Such items are covered by separate formats to be referenced in material specifications or other test standards.

4.4 Composite materials are defined as two or more materials that are combined on a macroscale. There is a gray area between composites and other material classes. Two examples of this gray area between polymer matrix composites and plastics are toughened polystyrene and liquid crystal polymer. Appendix X1 contains a table, which provides guidelines for distinguishing between reinforced polymers and polymer matrix composites.

4.5 Composite materials consist of a matrix phase and one or more discrete reinforcements. Reinforcements may be interpreted broadly to include any macroscale second material, including fibers, particulates, precipitated particles, or structured domains of the parent material. The reinforcements covered in this guide include fibers and such particulates and precipitated particles that can be described adequately as filler within the matrix. The reinforcements may be polymers, metals, ceramics, or other materials. Sandwich constructions are covered by this guide via identification of the core material. These guidelines are suitable for the identification of composites in simple shapes of constant thickness; for example, plates or tubes. For complex structures, additional information relevant to a specific application may be required.

4.6 Classification of composite materials is complicated by the fact that composites are formed by combining different materials in varying amounts and configurations; this results in an infinite number of possibilities. An effective identification scheme must be capable of possible combinations without overburdening the system with details relevant only to a limited number of material systems. This guide provides both essential data elements and data elements that are considered desirable but not essential. Data elements are considered essential if they are required to make a meaningful comparison of property data from different sources.

4.7 Identification of constituent materials of the composites is included to the level considered necessary for identification of the composite.

4.8 Comparison of property data from different databases will be most meaningful if all the essential information defined by the guide is present. Comparison may still be possible if essential information is omitted, but the usefulness of the comparison may be greatly reduced.

4.9 For identification of composite materials, Table 1 (Part A) and Tables 2 and 3 shall be used.

(A) Includes non-hexagonal open cell shapes, such as Flexcore®, etc. Flexcore® is a registered trademark of Hexcel, Inc. and has been found satisfactory for this purpose.

4.10 For identification of fiber, filler, and core, Table 1 (Part B), Tables 4-10, and Tables 11-14 shall be used.

(A) Field numbers are for information only.(B) Dimension parameter and value should be given for each relevant dimension. Type is essential information if value is given.(C) For each dimension in which distribution width is relevant. Parameter is essential if parameter value is given.

4.11 For identification of matrix, Table 1 (Part C) and Tables 15-17 shall be used.

(A) CMH-17, Volume 2, Section 1.6.1, and Terminology D1600.

4.12 For identification of preform, Table 1 (Part D) and Tables 18-20 shall be used.

4.13 For identification of prepreg, Table 1 (Part E), Table 5, and Tables 21 and 22 shall be used.

4.14 For identification of process, Table 1 (Part F), Table 16, and Tables 23-26 shall be used.

4.15 For identification of composite parts, Table 1 (Part G) and Table 27 shall be used.

Subcomité:

D30.01

Referida por:

D4762-23

Volúmen:

15.03

Número ICS:

83.120 (Reinforced plastics)

Palabras clave:

core material; data elements; databases; fiber-reinforced polymer-matrix composite materials; fiber; filler; material identification; matrix, preform, process, part, materials databases;