This paper presents some biomedical applications that involve fluid-structure interactions which are simulated using the Immersed Finite Element Method (IFEM). Here, we first review the original and enhanced IFEM methods that are suitable to model incompressible or compressible fluid that can have densities that are significantly lower than the solid, such as air. Then, three biomedical applica...

Abstract Uncertainties are unavoidable in practical engineering, and phononic crystals no exception. In this paper, the uncertainties treated as interval parameters, an crystal beam model is established. A perturbation-based finite element method (P-IFEM) affine-based (A-IFEM) proposed to study dynamic response of beam, based on which vibration transmission analysis can be easily implemented sa...

Sparse matrixlization, an innovative programming style for MATLAB, is introduced and used to develop an efficient software package, iFEM, on adaptive finite element methods. In this novel coding style, the sparse matrix and its operation is used extensively in the data structure and algorithms. Our main algorithms are written in one page long with compact data structure following the style “Ten...

This paper describes an automated procedure to model imprecisely defined structures and solve them using the interval and fuzzy finite element methods (IFEM and FFEM). The IFEM and FFEM procedures both require an uncertain FE model as input. Since none of the available preprocessors can generate uncertain FE models, the first part of the research focuses on creating an uncertain FE model based ...

A novel structural health monitoring approach is developed by coupling the inverse finite element method (iFEM) and peridynamic theory (PD) for real-time shape sensing analysis crack propagation of plate structures. This hybrid method, called iFEM-PD, can account deformation, stress, damage states any sensor-equipped structure in real time without need loading knowledge regardless complexity to...

This paper summarizes the newly developed immersed finite element method (IFEM) and its applications to the modeling of biological systems. This work was inspired by the pioneering work of Professor T.J.R. Hughes in solving fluid-structure interaction problems. In IFEM, a Lagrangian solid mesh moves on top of a background Eulerian fluid mesh which spans the entire computational domain. Hence, m...

The International Federation of Emergency Medicine (IFEM) mission is to improve emergency medicine (EM) around the world. Central to this philosophy is specialty development through an emphasis on education. To achieve that goal, the IFEM published manuscripts in 2009 and 2011 describing undergraduate (also known as “medical school”) education and graduate education (also known as “residency tr...

The inverse finite element method (iFEM) is one of the best candidates to perform displacement monitoring (shape sensing) structures using a set on-board/embedded strain sensors. This study demonstrates high efficiency, robustness, and accuracy iFEM approach reconstruct geometrically non-linear deformations thin laminated plates shells by performing experimental measurements numerical analyses....

This paper investigated the effect of sensor density and alignment for three-dimensional shape sensing of an airplane-wing-shaped thick panel subjected to three different loading conditions, i.e., bending, torsion, and membrane loads. For shape sensing analysis of the panel, the Inverse Finite Element Method (iFEM) was used together with the Refined Zigzag Theory (RZT), in order to enable accur...