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Representation of heterogeneous material properties in the Core Product Model

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Abstract

The Core Product Model (CPM) was developed at National Institute of Standards 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 Unified Modeling Language and is illustrated through a number of specific examples.

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Acknowledgments

This research is supported in part by the National Science Foundation grants DMI-0323514 and DMI-0115133, and the National Institute of Standards (NIST) grant 60NANB2D0126. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. No approval or endorsement of any commercial product by the National Institute of Standards and Technology or by University of Wisconsin-Madison is intended or implied.

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Correspondence to Vadim Shapiro.

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Biswas, A., Fenves, S.J., Shapiro, V. et al. Representation of heterogeneous material properties in the Core Product Model. Engineering with Computers 24, 43–58 (2008). https://doi.org/10.1007/s00366-007-0065-y

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