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Nanoindenter Force Converting Stage EML 4905 Senior Design FIU Department of Mechanical Engineering Miami, Florida Team 15 Erick Camacho James Caraballo Patricia Wong Advisor: Dr. Benjamin Boesl

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Outline 1. Problem Statement 2. Motivation and Goals Literature Survey Survey of Related Standards Alternate Designs Final Conceptual Design Structural Design and Simulation Plan 3. Prototype Design, Construction & Experimentation Plan Elements of Global Design Integrated in the Project Design Experience 4. Environmental Issues 5. Economic Aspects of the Designed Product 6. Global Awareness, Global Perspective and Global Engagement 7. Life - Long Learning Gantt Chart (for two semesters) and Division of Responsibilities Conclusions and Future Work

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Nanoindenter Material testing Single compressive force onto a material sample Nanomaterials Nanowires Biomaterials

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Problem Statement Convert vertical compressive force to tensile force

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Motivation & Goals Increase the capabilities of material testing with nanoindenter. Testing with optical microscope Does not require high vacuum conditions.

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Motivation & Goals Explore applications of available 3D printing capabilities.

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Literature Survey Mechanical Engineering and Materials Science Department in Rice University Nanofabricated 3 m thick polysilicon layer 10 m

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Literature Survey Mechanical Engineering and Materials Science Department in Rice University F tensile = 0.67 F compressive 10 m

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1. Knoop and Vickers Hardness of Materials ASTM E384 ASTM E2546 2. Standard Practice for Indentation Testing ASTM E2546 3. Standard Guide for Printing Inks ASTM D5010 ASTM D7188 Standards

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Alternate Designs

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Final Conceptual Design Flex360 design printed using NinjaFlex 3D Filament

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Final Conceptual Design

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Structural Design and Simulation Plan Stress analysis with 0.01 N compressive load 0.19 GPA Max stress

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Structural Design and Simulation Plan Displacement analysis with 0.01 N 0.05 mm original separation

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Structural Design and Simulation Plan 0.343 mm total elongation on testing site 686% maximum strain on testing material

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Structural Design and Simulation Plan Calibration using larger sample of known Elastic modulus Cross sectional area Original Length Material of known E

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Structural Design and Simulation Plan Calibration using larger sample of known Material of known E

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Prototype Construction & Testing NinjaFlex 3D Printing Filament MakerBot Replicator 2X Approximately 15 minute build time

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Prototype Construction & Testing Nanoindenter test to compare with design analysis Design scale up Micro-indenter test

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Prototype Construction & Testing Nanoindenter test to compare with design analysis Design scale up Micro-indenter test

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Prototype Construction & Testing F t = 0.13 F c F t = 0.67 F c 10 m

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Design is a plan for arranging elements in such a way as best to accomplish a particular purpose - Charles Eames Design Experience 3D Printing experience o Tolerances o Design vs. Manufacturing

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Environmental Issues No machinery required with 3D printing Small impact with discarded designs due to small size Recyclable material

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Economic Aspects and Impact Increase in testing expands the application of materials Industries advance

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Global Awareness World-wide pursuit of increasing testing results Global research Improving technology for the world

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Life Long Learning Professional collaboration with engineering peers Advisor-lead research as experience towards grad school and professional work Time Management Use of Standards

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2014 2015 Timeline

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Conclusion & Future Work New design o simple concept o high manufacturability o inexpensive - does not have to be reused o may be adjusted for designs using other materials

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Conclusion & Future Work Scale down design Nanomanufacturing process Material Testing

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Special Thanks to Advisor : Dr. Benjamin Boesl Dr. Sabri Tosunoglu Mr. Micheal Enriquez Mr. Sadegh Behdad

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Questions?