Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Representation of Heterogeneous Material Properties in the Core Product Model



Arpan Biswas, Steven J. Fenves, V Shapiro, Ram D. Sriram


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.
Engineering With Computers


CAD, CAE, Core Product Model (CPM), data exchange, heterogeneous material properties, product development process


Biswas, A. , Fenves, S. , Shapiro, V. and Sriram, R. (2006), Representation of Heterogeneous Material Properties in the Core Product Model, Engineering With Computers, [online], (Accessed April 23, 2024)
Created June 1, 2006, Updated February 19, 2017