The reliability of finite element analysis (FEA) in biomechanical investigations depends upon understanding the influence of model assumptions. In producing finite element models, surface mesh resolution is influenced by the resolution of input geometry, and influences the resolution of the ensuing solid mesh used for numerical analysis. Despite a large number of studies incorporating sensitivi...

We describe a significant extension of the finite element method (FEM) that allows finite element analysis (FEA) to be performed in situ, on a native geometric representation of a solid domain. The proposed method, called Scan&Solve, is a particular implementation of the solution structure method (SSM) that builds on the classical ideas of Kantorovich and Rvachev. It can be applied to any geome...

Computer aided Finite Element Analysis (FEA) tools have been used since the late 1950’s. The asynchronous plot of simulations and the corresponding results consumes a large amount of engineering cycle time; additionally, applying FEA parameters on a 3D CAD model with 2D mouse/keyboard has always been a complex process. This paper presents the prototype of a software toolkit that performs real-t...

This article presents two applications of the nonlinear finite element analysis (FEA) using ABAQUS/Standard with a user developed material subroutine Nitinol UMAT from Abaqus West. The analyses are found to agree well with the theoretical prediction and/or experimental measurement. In that first example, FEA predicts the stress-strain response of a superelastic Nitinol device at different Af te...

MEMS structures rendered defective by particles are modeled at the schematic-level using existing models of fault-free MEMS primitives within the nodal simulator NODAS. We have compared the results of schematic-level fault simulations with low-level finite element analysis (FEA) and demonstrated the efficacy of such an approach. Analysis shows that NODAS achieves a 60X speedup over FEA with lit...

This paper describes a modular framework that facilitates the development of finite element analysis (FEA) programs. The framework allows users easy access to the FEA program and the analysis results by using a web-browser or other application programs, such as MATLAB. In addition, the framework enables new as well as legacy codes to be incorporated from disparate sites in a dynamic and distrib...

Over the past several years, the commercial finite element analysis (FEA) software industry has seen significant growth in both capability and reach. As such, today’s undergraduate students have access to sophisticated, yet easy to use simulation tools. For better or worse, use of the tools themselves requires neither an understanding of foundational principles nor a working knowledge of the fi...

This study aims to validate, using finite element analysis (FEA), the design concept by comparing the fatigue behavior of hip implant stems coated with composite (carbon/PEEK) and polymeric (PEEK) coating materials corresponding to different human activities: standing up, normal walking and climbing stairs under dynamic loadings to find out which of all these models have a better performance in...

This paper proposes a novel computational framework for improving realism and fidelity of finite element analysis simulations through experimental test data. The proposed scheme utilizes an artificial neural network to learn and compensate for the differences between a finite element analysis model simulation and corresponding experiment. The proposed computational methodology is poised to sign...

This paper reports on the finite element analysis (FEA) of crosstalk in capacitive micromachined ultrasonic transducer (CMUT) arrays. Finite element calculations using a commercial package (LS-DYNA) were performed for an immersed 1-D CMUT array operating in the conventional and collapsed modes. LS-DYNA was used to model the crosstalk in CMUT arrays under specific voltage bias and excitation con...