ASI3D8

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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