Much research has been conducted on effective elastic properties of meso-scaled periodic cellular material (MPCM) structures; however, there is only limited research providing guidelines on how to develop improved unit cell (UC) topologies and shapes for a given set of loading requirements and conditions. This paper presents guidelines to improve the shear flexibility of the MPCMs while maintaining the effective shear modules by changing the topology or the shape of a unit cell. The guidelines are intended to use design knowledge for helping engineers by providing recommendations at any stage of the design process. In this paper, the guidelines are developed by changing topology characteristics to achieve a desired effective property of the MPCM structure. The effects of individual members, such as side connection, transverse connection, vertical legs, and curved beams of MPCM structure, when subjected to the in-plane shear loading are investigated through conducting a set of numerical simulation on UCs with similar topology and shape characteristics. Based on the simulation results, the unit cell design guidelines are developed to provide recommendations to engineers on improving the shear flexure of MPCM during the design process. Ultimately, a unit cell design guideline development method is offered and demonstrated by developing two new design guidelines.
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October 2019
Research-Article
A Unit Cell Design Guideline Development Method for Meso-Scaled Periodic Cellular Material Structures
Mohammad Fazelpour,
Mohammad Fazelpour
1
Assistant Clinical Professor
First-Year Innovation and Research Experience,
College Park, MD 20742
e-mail: mfazelp@umd.edu
First-Year Innovation and Research Experience,
University of Maryland
,College Park, MD 20742
e-mail: mfazelp@umd.edu
1Corresponding author.
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Prabhu Shankar,
Prabhu Shankar
Adjunct Assistant Professor
Department of Mechanical Engineering,
Clemson, SC 29634,
e-mail: pshankar@jlg.com
Department of Mechanical Engineering,
Clemson University
,Clemson, SC 29634,
e-mail: pshankar@jlg.com
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Joshua D. Summers
Joshua D. Summers
Professor
Department of Mechanical Engineering,
Clemson, SC 29634
e-mail: jsummer@clemson.edu
Department of Mechanical Engineering,
Clemson University
,Clemson, SC 29634
e-mail: jsummer@clemson.edu
Search for other works by this author on:
Mohammad Fazelpour
Assistant Clinical Professor
First-Year Innovation and Research Experience,
College Park, MD 20742
e-mail: mfazelp@umd.edu
First-Year Innovation and Research Experience,
University of Maryland
,College Park, MD 20742
e-mail: mfazelp@umd.edu
Prabhu Shankar
Adjunct Assistant Professor
Department of Mechanical Engineering,
Clemson, SC 29634,
e-mail: pshankar@jlg.com
Department of Mechanical Engineering,
Clemson University
,Clemson, SC 29634,
e-mail: pshankar@jlg.com
Joshua D. Summers
Professor
Department of Mechanical Engineering,
Clemson, SC 29634
e-mail: jsummer@clemson.edu
Department of Mechanical Engineering,
Clemson University
,Clemson, SC 29634
e-mail: jsummer@clemson.edu
1Corresponding author.
Contributed by Materials Division of ASME for publication in the Journal of Engineering Materials and Technology. Manuscript received July 3, 2018; final manuscript received March 15, 2019; published online April 5, 2019. Assoc. Editor: Erdogan Madenci.
J. Eng. Mater. Technol. Oct 2019, 141(4): 041004 (12 pages)
Published Online: April 5, 2019
Article history
Received:
July 3, 2018
Revision Received:
March 15, 2019
Accepted:
March 18, 2019
Citation
Fazelpour, M., Shankar, P., and Summers, J. D. (April 5, 2019). "A Unit Cell Design Guideline Development Method for Meso-Scaled Periodic Cellular Material Structures." ASME. J. Eng. Mater. Technol. October 2019; 141(4): 041004. https://doi.org/10.1115/1.4043271
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