Enrichment of three-dimensional numerical manifold method with cover-based contact theory for static and dynamic mechanical response analysis

authored by
Ge Kang, Ke song Ni, Xiaoying Zhuang, Timon Rabczuk, You jun Ning, Peng wan Chen
Abstract

Based on the mathematical grid of 4-node tetrahedral finite element form, the dual cover system, weight function and displacement function of three-dimensional numerical manifold method (3D-NMM) are proposed. The derivation process of element stiffness matrix, inertial force matrix, loading point matrix, etc. are systematically demonstrated in the present work. Based on the cover-based contact theory, the contact detection algorithm among discrete 3D blocks is realized, and the 3D manifold framework is programmed. The accuracy of the developed code is firstly calibrated through two continuum deformation analysis: cantilever beam bending model and axial tensile model of thin plate with circular hole. Then it is applied to three complex discontinuous instability simulation (SHPB, brick wall structure and cliff slope) to verify the effectiveness and accuracy of the proposed contact algorithm. The classic Steven low velocity impact process is also simulated, and the deformation and failure of polymer bonded composites (PBC) are predicted, which further verifies the feasibility and robustness of the developed code in dealing with dynamic impact problems.

Organisation(s)
Institute of Photonics
External Organisation(s)
Beijing Institute of Technology
China Aerodynamics Research and Development Center
Tongji University
Bauhaus-Universität Weimar
Southwest Petroleum University China
Type
Article
Journal
Applied mathematical modelling
Volume
122
Pages
524-554
No. of pages
31
ISSN
0307-904X
Publication date
10.2023
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Modelling and Simulation, Applied Mathematics
Electronic version(s)
https://doi.org/10.1016/j.apm.2023.05.021 (Access: Closed)
 

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