High-Performance Composites

MAY 2014

High-Performance Composites is read by qualified composites industry professionals in the fields of continuous carbon fiber and other high-performance composites as well as the associated end-markets of aerospace, military, and automotive.

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M A Y 2 0 1 4 | 6 9 Tsai says the team was able to import geometry from CATIA and use Simulayt with the composite modeler for Abaqus (CMA) to analyze composite layups. The same models were reused for the CFD simulation, and material properties and conditions could be shared between models without duplica- tion. CATIA Composites came into play at the detailed design stage, helping to optimize design for manufacturability, and it also generated the composite layup geometry, which could then be assigned to Abaqus with specifed material properties and fber orientation. An interface connects CATIA Composite and Abaqus CMA with automatic data transfer, eliminating the possibility of typos and tedious layer-by-layer property assign- ments. The Simulayt tool then simulated the forces on a com- posite structure during manufacturing, rounding out the analy- sis by predicting plant foor fabrication issues, such as hogging loads during hull lifting and demoldings, that can be mitigated earlier in the development cycle. This makes it easier to meet production timeframes within budget. In terms of slam loads and wave impacts (see images, top right), the team used Abaqus CEL to simulate the yacht's transient and nonlinear varying response to these conditions in straight runs and turning maneuvers. Slamming contact pressure on the hull also was output to determine structure loading under transient impact. Concludes Tsai, "More widespread use of these advanced simulation methodologies will help Taiwanese yachtmakers. Simulation can help them innovate designs faster while keep- ing costs in check." Source: (all images) Simutech 0514HPC Application-OK.indd 69 4/22/2014 3:33:39 PM

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