Investigation of Shape Functions Role on the Mesh-free Method Application in Soft Tissue Elastography

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

Hamed Ajabi Naeeni ¹ , Mohammad Haghpanahi ² , Hamid Behnam ³ , Hadi Pirali ⁴

1 - Islamic Azad University, Khomeinishahr Branch
2 - Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
3 - Department of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran
4 - Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran

Received: 2016-09-05 Accepted : 2017-02-10 Published : 2017-05-01

Keywords: Mesh-Free, Elastography, Soft Tissue Phantom,

Abstract :

In current study, The Mesh-free method based on weak-form formulation coupled with the ultrasound imaging technique is developed. This problem consists in computing the deformation of an elastic non-homogenous phantom by numerical methods (both Mesh-free and Finite Element) and converge their results to the measured deformation by the ultrasound. The shape functions of Mesh-free are approximated by the Moving Least Square (MLS) method. The effect of Shape functions on the Mesh-free results are analyzed and discussed with the several simulations in 2D domain.

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