ASI3D8

This command is used to construct an eight-node zero-thickness 3D brick acoustic-structure interface element object based on a bilinear isoparametric formulation. The nodes in the acoustic domain share the same coordinates with the nodes in the solid domain.

element ASI3D8 $eleTag $node1 $node2 $node3 $node4 $node5
        $node6 $node7 $node8

eleTag

unique element object tag

\(node1 ..\)node4

four nodes defining structure domain of element boundaries (numbered as shown in pdf)

$node5 .. $node8

four nodes defining acoustic domain of element boundaries (numbered as shown in pdf)


For further documentation and figures see attached:pdf

Reference: ABAQUS theory manual. (2.9.1 Coupled acoustic-structural medium analysis)


Code Developed by: Quan Gu, Yichao Gao and Zhijian Qiu

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