NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
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.
On Practice and Theory of Constructive Composite Geometry and Topology
Published
Author(s)
Thomas D. Hedberg Jr., Allison Barnard Feeney, Vijay Srinivasan
Abstract
This paper synthesizes a theory from industrial best practices codified in recent standards. Recent editions of ASME and ISO standards codify the evolving industrial best practices in defining and modeling the information about products made from fibrous composite materials. A theory of constructive composite geometry and topology is synthesized from these practices. Major features of this theory include a constructive composite geometry tree that is equivalent to the ply/laminate tables of the standards, and an adjacency graph that captures a crucial aspect of the topology of the geometric cell complex structure of composite products. It also addresses the geometrical and topological structure of fiber arrangements inside the plies. The goal of the theory is to provide a scientific basis for standards that enable the digital transformation of composite product manufacturing.
Proceedings Title
Proceedings of the ASME 2019 International Design Engineering Technical Conferences and Computers
and Information in Engineering Conference
Hedberg, T.
, Barnard, A.
and Srinivasan, V.
(2019),
On Practice and Theory of Constructive Composite Geometry and Topology, Proceedings of the ASME 2019 International Design Engineering Technical Conferences and Computers
and Information in Engineering Conference, Anaheim, CA, [online], https://doi.org/10.1115/DETC2019-97134
(Accessed October 14, 2025)