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Optimization Methods for Minimizing Induced Stress During Tensile Testing of Prosthetic Composite Materials

Optimization Methods for Minimizing Induced Stress During Tensile Testing of Prosthetic Composite Materials

Kwame Anane-Fenin, Esther Titilayo Akinlabi, Nicolas Perry
Copyright: © 2019 |Pages: 27
ISBN13: 9781522582359|ISBN10: 1522582355|ISBN13 Softcover: 9781522583189|EISBN13: 9781522582366
DOI: 10.4018/978-1-5225-8235-9.ch008
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MLA

Anane-Fenin, Kwame, et al. "Optimization Methods for Minimizing Induced Stress During Tensile Testing of Prosthetic Composite Materials." Design, Development, and Optimization of Bio-Mechatronic Engineering Products, edited by Kaushik Kumar and J. Paulo Davim, IGI Global, 2019, pp. 180-206. https://doi.org/10.4018/978-1-5225-8235-9.ch008

APA

Anane-Fenin, K., Akinlabi, E. T., & Perry, N. (2019). Optimization Methods for Minimizing Induced Stress During Tensile Testing of Prosthetic Composite Materials. In K. Kumar & J. Davim (Eds.), Design, Development, and Optimization of Bio-Mechatronic Engineering Products (pp. 180-206). IGI Global. https://doi.org/10.4018/978-1-5225-8235-9.ch008

Chicago

Anane-Fenin, Kwame, Esther Titilayo Akinlabi, and Nicolas Perry. "Optimization Methods for Minimizing Induced Stress During Tensile Testing of Prosthetic Composite Materials." In Design, Development, and Optimization of Bio-Mechatronic Engineering Products, edited by Kaushik Kumar and J. Paulo Davim, 180-206. Hershey, PA: IGI Global, 2019. https://doi.org/10.4018/978-1-5225-8235-9.ch008

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Abstract

The application of composite materials for prosthetic applications is the norm in recent times. Accurately characterizing the principal stresses during tensile testing is therefore essential. The low transverse compressive strength of most composite materials limits high clamping forces during tensile testing. Tabs are consequently critical for cushioning against grip pressure and surface damage. However, tabs tend to introduce induced stress concentrations. In this chapter, the induced stress concentrations are minimized via the optimization of tab design configurations. Stress concentration obtained via finite element analysis were used to develop a full factorial design for statistical analysis and compared with a Taguchi, Taguchi-multi response and Taguchi-genetic algorithm optimizations. It was established that to minimize the stress concentrations, low values of tab stiffness, thickness, and taper angle were required while the adhesive thickness was increased. The Taguchi and hybrid approaches were efficient and reduced the number of simulations from 32 to 8 (75% reduction).

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