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Designing a Strain Measurement System based on Circle Grid Analysis for Sheet Metal Forming Applications

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2017 ASEE Annual Conference & Exposition


Columbus, Ohio

Publication Date

June 24, 2017

Start Date

June 24, 2017

End Date

June 28, 2017

Conference Session

Materials, Manufacturing, and Machine Component Design

Tagged Division

Mechanical Engineering

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Paper Authors


Relmane Baptiste University of Maryland, Eastern Shore

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Relmane Baptiste, is a 2014 graduate from the University of Maryland Eastern Shore (UMES) with a Bachelor of Science Degree in Engineering, specializing in Electrical Engineering. Mr. Baptiste designed a Strain Measurement System for his Senior Design Project. This design was based on Circle Grid Analysis for Sheet Metal Forming Applications, where he extensively utilized Multisim and Solidworks to complete his Senior Design Project. During his undergraduate studies, Mr. Baptiste also completed a workshop at NASA in Wallops Island, VA. The week-long workshop afforded himself and fellow participants the opportunity to build small scientific instrument payloads which were flown on a NASA sounding rocket. The experiments included a battery of sensors that captured environmental readings during flight. In addition to the workshop, Mr. Baptiste completed an internship with Booz Allen Hamilton in Linthicum Heights, MD. At Booz Allen Hamilton he performed research, test and analyses of Mobile Ad Hoc Network (MANET) portable communication radios. Furthermore, he constructed, assembled and tested N-type coaxial cables for Rapydconnex communication system for administration and maintenance of critical communication systems. Mr. Baptiste is currently employed at Aberdeen Proving Ground, MD with CERDEC as a Modeling, Simulation and Test Engineer.

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DeOndre L Clark Jr University of Maryland, Eastern Shore

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DeOndre Clark Jr graduated in Fall 2014 with a Bachelor of Science Degree in General Engineering Specializing in Computer Engineering from the University of Maryland Easter Shore. For his Senior Design Project, Mr. Clark Designed a Strain Measurement System based on Circle Grid Analysis for Sheet Metal Forming Applications. During the summer of 2014, Mr. Clark was a Student Research Assistant at the University of Maryland. He programmed and tested a RC car to navigate autonomously using Ardupilot. He developed and evaluated autonomous systems for a RC boat. Designed a boat to withstand 50 lbs. for a ISCO sensor. Designed a High Reduction Ratio Planetary Drive with solidworks and printed the model using a 3D printer.

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Payam Matin University of Maryland, Eastern Shore

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Dr. Payam Matin is currently an Associate Professor in the Department of Engineering and Aviation Sciences at the University of Maryland Eastern Shore (UMES), Princess Anne, Maryland. Dr. Matin has received his Ph.D. in Mechanical Engineering from Oakland University, Rochester, Michigan in May 2005. He has taught a number of courses in the areas of mechanical engineering and aerospace at UMES. He has served as departmental ABET committee chair through a successful accreditation visit in Fall 2012. Dr. Matin’s research has been mostly in the areas of Computational Mechanics and Experimental Mechanics with applications in Solid Mechanics, Plasticity and Sheet Metal Forming. Dr. Matin has published more than 25 peer-reviewed journal and conference papers. Dr. Matin is the recipient of NSF MRI award as a Co-PI. Dr. Matin worked in Automotive industry for Chrysler Corporation from 2005 to 2007. He Joined UMES in August 2007. He is affiliated with ASME and ASEE professional societies

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For characterizing formability of sheet metals, circle grid analysis is used as an experimental means of measuring forming strains in stamped sheet metal parts. This method involves etching a pattern of circle grid with known dimensions on sheet metal before forming operation, and measuring the new dimensions of the deformed circles after forming operation. The etching process is usually conducted through an electrochemical material deposition. While electrochemical marking systems are available commercially, they could be pricy depending on the specifications. For educational and research needs of the department, a team of undergraduate students is assigned to design and prototype a cost effective electrochemical marking system for strain measurement application in a senior design framework. The design project is defined with certain design requirements and design constraints, which match with the industry standards. The learning objectives of the project are articulated from the start. The design team put into practice their knowledge of circuit analysis to simulate, design and prototype the circuitry that etch circle grid on sheet metal as desired for strain measurement. The principles of electrochemical deposition are also considered for design purposes. A prototype is built and tested successfully to the specifications. A transparent ruler is designed based on definition of true strain for strain measurement. In this paper, the learning objectives and learning outcomes of the projects are discussed.

Baptiste, R., & Clark, D. L., & Matin, P. (2017, June), Designing a Strain Measurement System based on Circle Grid Analysis for Sheet Metal Forming Applications Paper presented at 2017 ASEE Annual Conference & Exposition, Columbus, Ohio. 10.18260/1-2--28125

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