scope:

Volume 4 of MIL-HDBK-17 serves as a general Reference source for technical information on metal matrix composites, including: FIGURE 1.1.1 Focus of MIL-HDBK-17 Volume 4 indicated by shaded block.

This volume contains guidelines for determining the properties of composite material systems, their constituents, and generic structural elements, including test planning, test matrices, sampling, conditioning, test procedure selection, data reporting, data reduction, statistical analysis, and other related topics. Special attention is given to the statistical treatment and analysis of data. Section 1 contains guidelines for general development of material characterization data as well as specific requirements for publication of metal matrix composite material data in MIL-HDBK-17. FIGURE 1.1.6.1 Mechanical property notation.

TABLE 1.1.6.2(a) Fiber system codes.

TABLE 1.1.6.2.(b) Matrix material codes.

TABLE 1.1.6.3 English to SI conversion factors.

PURPOSE. The primary purpose of MIL-HDBK-17 Volume 4 is the standardization of engineering data development methodologies related to characterization testing, data reduction, and data reporting of properties for metal matrix composite materials. In support of this objective MIL-HDBK-17 Volume 4 publishes properties on composite material systems for which data meeting specific requirements is available. In addition, MIL-HDBK-17 provides selected guidance on other technical topics related to composites, including material selection, material specification, material processing, design, analysis, quality control, and repair of typical metal matrix composite materials. Thus, MIL-HDBK-17 is published in three major sections, and serves as a source for the following:

• Section 1 - Guidelines: Documents material characterization data development methodology guidelines adaptable to a wide variety of needs, as well as specific requirements to be met by data published in the handbook. Most procuring and certifying agencies prefer, and some may require, that composite material systems used in critical applications either be characterized in accordance with Section 1 guidelines or selected from material systems published in Section 3.

• Section 2 - Utilization of Data: This section provides guidance on statistical analysis of metal matrix composite data. In addition, methodologies and recommendations for design, modeling, joining, structural reliability, and repair are given.

• Section 3 - Materials Property Data: Provides a repository of potential design data. The documented property summaries for material systems provide data meeting the criteria for any of the two MIL-HDBK-17 data documentation classes, screening and fully approved.