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Stress Wave Propagation Analysis in One-Dimensional Micropolar Rods with Variable Cross-Section Using Micropolar Wave Finite Element Method

Mohsen Mirzajani

Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P. O. Box 14115–397, Tehran, Iran

E-mail Address: m.mirzajani@modares.ac.ir

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Naser Khaji

Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P. O. Box 14115–397, Tehran, Iran

E-mail Address: nkhaji@modares.ac.ir

Corresponding author.

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, and

Muneo Hori

Earthquake Research Institute, University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo 113-0032, Japan

E-mail Address: hori@eri.u-tokyo.ac.jp

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https://doi.org/10.1142/S1758825118500394Cited by:21 (Source: Crossref)

Abstract

The wave finite element method (WFEM) is developed to simulate the wave propagation in one-dimensional problem of nonhomogeneous linear micropolar rod of variable cross-section. For this purpose, two kinds of waves with fast and slow velocities are detected. For micropolar medium, an additional rotational degree of freedom (DOF) is considered besides the classical elasticity’s DOF. The proposed method is implemented to solve the wave propagation, reflection and transmission of two distinct waves and impact problems in micropolar rods with different layers. Along with new solutions, results of the micropolar wave finite element method (MWFEM) are compared with some numerical and/or analytical solutions available in the literature, which indicate excellent agreements between the results.

Keywords:

References

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