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Computer-Aided Engineering Resources and FEM for Biodevices

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Handbook on Advanced Design and Manufacturing Technologies for Biomedical Devices

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Abstract

Computer-aided engineering (CAE) refers to the general use of software to aid in engineering tasks, in its broadest sense even including computer-aided design and computer-aided manufacturing; although in product design, CAD is ­perceived as the starting point for designing a part, CAE involves the simulations carried out upon a CAD part in order to verify geometries and materials, and CAM is linked to the simulations realized upon a CAD part to prepare manufacturing processes and to the automated control of machine tools during production.

Although CAE can involve the use of all kinds of software and computer-aided calculations, in product development and linked to computer-aided design, such calculations are normally carried out by application of the finite element method (FEM), whose generalization in the final decades of the twentieth century has been essential for promoting the incorporation of CAE analysis tools together with CAD software packages.

Such method allows solving complex engineering problems by using a mesh discretization of a continuous domain into a set of discrete elements (connected by nodes) and by transforming initial partial differential equations as well as integral equations into an approximate system of ordinary differential equations (forced to be valid in the nodes) for final numerical integration. This method is especially well suited for solving partial differential equations over complicated domain or geometries, when the domain changes during the whole simulation, when the desired precision varies over the system under study, or when the solution lacks smoothness.

This chapter provides an overall introduction to the possibilities of CAE tools and gives several examples of FEM simulations of different phenomena (including mechanic, dynamic, thermal, and fluidic cases) for studying its effects on organs and biostructures, medical appliances and biodevices in general, as well as the interactions between implants and organism.

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Notes

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    On computer-Aided Design and Engineering Resources:

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Authors and Affiliations

  1. Mechanical Engineering Department, Product Development Laboratory, Universidad Politécnica de Madrid, c/José Gutiérrez Abascal 2, 28006, Madrid, Spain

    Andrés Díaz Lantada

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  1. Andrés Díaz Lantada
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Correspondence to Andrés Díaz Lantada .

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  1. Universidad Politécnica de Madrid, Av Ramiro de Maeztu 7, Madrid, 28040, Spain

    Andrés Díaz Lantada

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Lantada, A.D. (2013). Computer-Aided Engineering Resources and FEM for Biodevices. In: Lantada, A. (eds) Handbook on Advanced Design and Manufacturing Technologies for Biomedical Devices. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-6789-2_8

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  • DOI: https://doi.org/10.1007/978-1-4614-6789-2_8

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