Searching for auxetics with DYNA3D and ParaDyn

Physica Status Solidi (B): Basic Research - Tập 242 Số 3 - Trang 585-594 - 2005
Wm. G. Hoover1, Christian G. Hoover1
1Methods Development Group, Lawrence Livermore National Laboratory, Livermore, California 94551-7808, USA

Tóm tắt

AbstractWe sought to simulate auxetic behavior by carrying out dynamic analyses of mesoscopic model structures. We began by generating nearly periodic cellular structures. Four‐node “Shell” elements and eight‐node “Brick” elements are the basic building blocks for each cell. The shells and bricks obey standard elastic‐plastic continuum mechanics. The dynamical response of the structures was next determined for a three‐stage loading process: (1) homogeneous compression; (2) viscous relaxation; (3) uniaxial compression. The simulations were carried out with both serial and parallel computer codes – DYNA3D and ParaDyn – which describe the deformation of the shells and bricks with a robust contact algorithm. We summarize the results found here. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Tài liệu tham khảo

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Physica Status Solidi (B): Basic Research

Tập 242 Số 3

585-594

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