NIST logo

Publication Citation: Representation of Heterogeneous Material Properties in the Core Product Model

NIST Authors in Bold

Author(s): Arpan Biswas; Steven J. Fenves; V Shapiro; Ram D. Sriram;
Title: Representation of Heterogeneous Material Properties in the Core Product Model
Published: June 01, 2006
Abstract: The Core Product Model (CPM) was developed at NIST as a high level abstraction for representing product related information, to support data exchange, in a distributive and a collaborative environment. In this paper, we extend the CPM to components with continuously varying material properties. Such components are becoming increasing important and popular due to progress in design, analysis and manufacturing techniques. The key enabling concept for modeling continuously varying material properties is that of distance fields associated with a set of material features, where values and rates of material properties are specified. Material fields, representing distribution of material properties within a component, are usually expressed as functions of distances to material features, and are controlled with a variety of differential, integral or algebraic constraints. Our formulation is independent of any particular platform or representation, and applies to most proposed techniques for representing continuously varying material properties. The proposed model is described using system independent Unified Modeling Language (UML) and is illustrated through a number of specific examples.
Citation: Engineering With Computers
Keywords: CAD;CAE;Core Product Model (CPM);data exchange;heterogeneous material properties;product development process
Research Areas: Product Data, Manufacturing
PDF version: PDF Document Click here to retrieve PDF version of paper (437KB)