Three dimensional modeling method of MIMICS adjacent mask spherical open cell aluminum foam-polyurethane composites based on DICOM data

Abstract

The complexity and irregularity of the internal structure of aluminum foam and the particularity of the fabricating method make it difficult to establish a three-dimensional model that can accurately reflect the internal structure of aluminum foam-polyurethane composites. This study presents a method of threedimensional reconstruction of the Materialise's Interactive Medical Image Control System (MIMICS) adjacent mask based on Digital Imaging and Communications in Medicine (DICOM) data. Firstly, spherical open cell aluminum foam-polyurethane composites with different pore sizes (5 mm, 7 mm, 9 mm) were prepared. Then the corresponding DICOM data of the spherical open cell aluminum foam-polyurethane composites were obtained by CT-scan. Based on adjacent mask, the three-dimensional simulation model of spherical open cell aluminum foam-polyurethane composites was successfully reconstructed in MIMICS. In order to verify the feasibility of this modeling method, a quasi-static compression simulation of the three-dimensional simulation model was carried out by ABAQUS, and the simulated stress-strain curves were acquired. The quasi-static compression experiments were performed on the prepared aluminum foam-polyurethane composites, and the experimental nominal stress-strain curves were obtained. The simulated nominal stress-strain curves were compared with the experimental nominal stress-strain curves. Results show that the two curves are basically the same. The feasibility and accuracy of the three-dimensional modeling method for the aluminum foampolyurethane composites are verified.

Keywords

• aluminum foam-polyurethane; ct-scan; quasi-static compression; 3d modeling; simulation