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Mechanical Properties Of 3D-Structure Composites Based On Warp-Knitted Spacer Fabrics

Chen S., Long H. R., Liu Y. H., Hu F. H.

Autex Research Journal

2015

Vol. 15, no. 2

127--137

In this paper, the mechanical properties (compression and impact behaviours) of three-dimension structure (3D-structure) composites based on warp-knitted spacer fabrics have been thoroughly investigated. In order to discuss the effect of fabric structural parameters on the mechanical performance of composites, six different types of warp-knitted spacer fabrics having different structural parameters (such as outer layer structure, diameter of spacer yarn, spacer yarn inclination angle and thickness) were involved for comparison study. The 3D-structure composites were fabricated based on a flexible polyurethane foam. The produced composites were characterised for compression and impact properties. The findings obtained indicate that the fabric structural parameters have strong influence on the compression and impact responses of 3D-structure composites. Additionally, the impact test carried out on the 3D-structure composites shows that the impact loads do not affect the integrity of composite structure. All the results reveal that the product exhibits promising mechanical performance and its service life can be sustained.

Scanned cross-section as a base of geometry loaded structures creation

Kopecki H., Smykla A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2002

z. 58 [193]

145-154

The paper presents the computational approach to the process of creation of complex three-dimensional structures. The data which is used in the modeling is automatically received by the measuring unit and sent directly to the computer. The process of numerical treatment of measuring points' coordinates is shown. As an example of the above mentioned method, the construction of human thighbone head model is demonstrated. In finite the geometrical model of object, which can be used by PATRAN system is obtained.