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Title: System, method, and computer program for creating geometry-compliant lattice structures

Abstract

A system and method of creating a shape-conforming lattice structure for a part formed via additive manufacturing. The method includes receiving a computer model of the part and generating a finite element mesh. A lattice structure including a number of lattice cellular components may also be generated. Some of the mesh elements of the finite element mesh may be deformed so that the finite element mesh conforms to the overall shape of the part. The lattice structure may then be deformed so that the lattice structure has a cellular periodicity corresponding to the finite elements of the finite element mesh. In this way, the part retains the benefits of its overall shape and the benefits of lattice features without introducing structural weak points, directional stresses, and other structural deficiencies.

Inventors:
Issue Date:
Research Org.:
Honeywell Federal Manufacturing & Technologies, LLC, Kansas City, MO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568275
Patent Number(s):
10,274,935
Application Number:
14/997,238
Assignee:
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
DOE Contract Number:  
NA0000622
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/15/2016
Country of Publication:
United States
Language:
English

Citation Formats

Vernon, Gregory John. System, method, and computer program for creating geometry-compliant lattice structures. United States: N. p., 2019. Web.
Vernon, Gregory John. System, method, and computer program for creating geometry-compliant lattice structures. United States.
Vernon, Gregory John. Tue . "System, method, and computer program for creating geometry-compliant lattice structures". United States. https://www.osti.gov/servlets/purl/1568275.
@article{osti_1568275,
title = {System, method, and computer program for creating geometry-compliant lattice structures},
author = {Vernon, Gregory John},
abstractNote = {A system and method of creating a shape-conforming lattice structure for a part formed via additive manufacturing. The method includes receiving a computer model of the part and generating a finite element mesh. A lattice structure including a number of lattice cellular components may also be generated. Some of the mesh elements of the finite element mesh may be deformed so that the finite element mesh conforms to the overall shape of the part. The lattice structure may then be deformed so that the lattice structure has a cellular periodicity corresponding to the finite elements of the finite element mesh. In this way, the part retains the benefits of its overall shape and the benefits of lattice features without introducing structural weak points, directional stresses, and other structural deficiencies.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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