Object-orientation for fusion of corrosion data

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:624368

Roberge, P R ^[1]; Trethewey, K R ^[2]

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1. Royal Military Coll., Kingston, Ontario (Canada). Dept. of Chemistry and Chemical Engineering
2. Univ. of Southampton (United Kingdom). Dept. of Engineering Materials

The complexity of many materials engineering problems can be drastically reduced by regrouping concepts and facts into a natural human representation provided by object-oriented models. One of the main advantages of using the principles of object orientation (OO) to structure a knowledge based system (KBS) is the compatibility of OO with natural cognitive operations such as classifying, instantiating, and measuring. But knowledge representation goes much beyond conventional data representation and must rely on facts that often possess a halo of fuzziness. In this project, the OO structure was used to organize the complex world of materials degradation and lifetime prediction. A system developed with this principle was found to be able to incorporate the fundamental knowledge derived from failure analysis or from other fields of materials engineering. Such a framework could also constitute the crucible to achieve the data fusion necessary to blend various sources of expertise. This paper describes the key elements of the framework and illustrates its flexibility by providing a guiding structure during the analysis of the results of a computerized search of modern engineering literature.

• OSTI ID: 624368
• Report Number(s): CONF-9511180--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS
CORROSION RESISTANCE
DATA ANALYSIS
EXPERT SYSTEMS
FORECASTING
KNOWLEDGE BASE
MATERIALS
SERVICE LIFE