STP1106

    Computerization of Composite Materials Data and Metadata

    Published: Jan 1991


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    Abstract

    The ASTM identifies three material classes; metals, ceramics, and polymers, and the three associated composite material classes for purposes of computerizing materials information. The present paper is focused on polymer-matrix composites and in particular those using graphite, aramid, and glass fibers in both thermoset and thermoplastic matrix materials. A first generation advanced materials database system (AMDBS) was recently completed for the collection and exchange of composite material properties data. Information is separated into test, design, and analysis categories with all data types stored as relational databases. A data structure similar to the four level data file structure for high temperature materials described by Kröckel and Westbrook was used for metadata. This provides traceability and factual information about the specimens and test conditions used to obtain a particular property. Property relations in AMDBS can be either tables or graphs. The principal operational difference between AMDBS and a system of stored optical image lies in its ability to answer structured questions about the materials in the database with specific properties under specific conditions. The user can then compose an engineering graphic from the results of a query or from graphical relations in the database. To allow finite element analysts electronic access to properties from MIL-HDBK databases, properties can be exported to PATRAN and IGES files. This provides a paperless transfer of properties information from archive sources like MIL-HDBK 17 and from evaluated composite test laboratory reports to finite element analysis applications codes. The utility of existing technical data exchange standards like MIL-STD 1840A is discussed based on experiences from the AMDBS project.

    Keywords:

    polymer-matrix composite, metadata, standards, relational databases


    Author Information:

    Stanton, EL
    Executive director, program manager, and program manager, PDA Engineering, Costa Mesa, CA

    Meyer, KJ
    Executive director, program manager, and program manager, PDA Engineering, Costa Mesa, CA

    Kipp, TE
    Executive director, program manager, and program manager, PDA Engineering, Costa Mesa, CA


    Paper ID: STP17682S

    Committee/Subcommittee: E49.01

    DOI: 10.1520/STP17682S


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