Plastic Tests Plastics [electronic resource] : A Toy Brick Tensometer for Electromechanical Characterization of Elastomers /
Moser, Richard.author.
Richard Moser shows how to use and upgrade toy bricks for the construction of a lightweight, low-cost, and easy to reproduce tensile testing setup. Tailored for the characterization of elastomers and stretchable electrodes, the setup is capable of performing stress-strain studies along with resistance-strain measurements. Based on the underlying theory of material deformation and rubber elasticity, the author applies the setup to mechanically characterize polydimethylsiloxane (PDMS) with different grades of stiffness. The versatility of the device is highlighted with the electromechanical characterization of stretchable thin film metal electrodes on PDMS. Applications of the author´s setup range from using it as an educational tool in practical physics and engineering courses over being showcase in scientific exhibitions to its utilization as an inexpensive and reliable laboratory tool. Contents Fundamentals of Elasticity Design of the Toy Brick Tensometer Stress/Resistance-Strain Measurements Target Groups Teachers and students in technical and applied sciences, with focus on stretchable electronics Executives and specialists in the field of plastics and polymer engineering and research The Author Richard Moser studied Technical Physics at Johannes Kepler University Linz and wrote his Master Thesis at the Soft Matter Physics Department (Institute of Experimental Physics) under the supervision of Prof. Dr. Siegfried Bauer, where he is currently working on his PhD thesis.
Description based upon print version of record.
Preface; Danksagung; Abstract; Kurzfassung; Contents; List of Figures; List of Tables; 1 Introduction; 2 Fundamentals of Elasticity; 2.1 The Deformation Tensor; 2.2 The Stress Tensor; 2.3 Microscopic Constitution; 2.4 Neo-Hooke, A Statistical Approach to Rubber Elasticity; 2.5 Refined Models of Rubber Elasticity; 2.5.1 The Mooney-Rivlin Approach; 2.5.2 The Gent Model; 2.5.3 The Ogden Model; 2.6 Application of Rubber Elasticity to Common Forms of Deformation; 3 Design of the Measurement Device; 3.1 Lego Mindstorms; 3.1.1 A Short History of LEGO Mindstorms; 3.1.2 The Hands-On Experience
3.1.3 Not just a Kids Toy3.1.4 NXT Implementation in NI LabView; 3.2 Sample Clamping and Stretching; 3.3 Data Acquisition; 3.3.1 Communication: Sensor Board - NXT ; 3.3.2 Strain-Measurement; 3.3.3 Stress-Measurement; 3.3.4 Resistance-Measurement; 4 Pertinent Example Measurements; 4.1 Determination of Young's Modululs; 4.1.1 Sample Preparation; 4.1.2 Sample Geometry; 4.1.3 Comparison of Fit-Models; 4.1.4 Young's Modulus for different degrees of cross-linking; 4.1.5 Young's Modulus for different rates of strain; 4.2 Determination of the Resistance of Stretchable Electrodes
4.2.1 Sample Preparation4.2.2 Substrate Geometry; 4.3 Measurement Procedure; 5 Conclusion & Outlook; 6 Appendix; 6.1 Intelligent Sensor Schematics; 6.2 Microcontroller Firmware; 6.2.1 Main Routine; 6.2.2 Data Acquisition Routine; 6.2.3 NXT Communication Routine; 6.3 Sample Grip CAD; References
Includes bibliographical references.
Richard Moser shows how to use and upgrade toy bricks for the construction of a lightweight, low-cost, and easy to reproduce tensile testing setup. Tailored for the characterization of elastomers and stretchable electrodes, the setup is capable of performing stress-strain studies along with resistance-strain measurements. Based on the underlying theory of material deformation and rubber elasticity, the author applies the setup to mechanically characterize polydimethylsiloxane (PDMS) with different grades of stiffness. The versatility of the device is highlighted with the electromechanical characterization of stretchable thin film metal electrodes on PDMS. Applications of the author´s setup range from using it as an educational tool in practical physics and engineering courses over being showcase in scientific exhibitions to its utilization as an inexpensive and reliable laboratory tool. Contents Fundamentals of Elasticity Design of the Toy Brick Tensometer Stress/Resistance-Strain Measurements Target Groups Teachers and students in technical and applied sciences, with focus on stretchable electronics Executives and specialists in the field of plastics and polymer engineering and research The Author Richard Moser studied Technical Physics at Johannes Kepler University Linz and wrote his Master Thesis at the Soft Matter Physics Department (Institute of Experimental Physics) under the supervision of Prof. Dr. Siegfried Bauer, where he is currently working on his PhD thesis.
Physical chemistry.
Structural materials.
Optical materials.
Electronic materials.
Physical Chemistry.
Structural Materials.
Optical and Electronic Materials.