Curing Deformation Analysis for the Composite T-shaped Integrated Structures
- 320 Downloads
Curing deformation of the T-shaped integrated structures is discussed in this paper. The mechanism of the deformation is analyzed for the T-shaped integrated structures, and a simple mathematical model for the deformation of the T-shaped integrated structures is established. Compare the mathematical model with the finite element analysis, the results show a good agreement. From the simple mathematical model, it can be seen that both cure shrinkage and thermal expansion are the major factors to produce the deformation of the typical T-shaped integrated structures and the tool-part contraction is the secondary factor. Therefore, it is important for the T-shaped integrated structures to select suitable fabrication process and the appropriate tool. The different geometry and material parameters of the T-shaped integrated structures are studied, and then a regression model is established.
KeywordsCure Warpage deformation Spring-in Regression analysis
This work was supported by National Natural Science Foundation of China (10772094).
- 3.Fernlund, G., Rahman, N., Courdji, R., Bresslauer, M., Poursartip, A., Willden, K., Nelson, K.: Experimental and numerical study of the effect of cure cycle, tool surface, geometry, and lay-up on the dimensional fidelity of autoclave-processed composite parts. Compos. Part A 33(3), 341–351 (2002). doi: 10.1016/S1359-835X(01)00123-3 CrossRefGoogle Scholar
- 14.Johnston, A., Vaziri, R., Poursartip, A.: A plane strain model for process-induced deformation of laminated composite structures. J. Compos. Mater. 35(16), 1435–1469 (2001)Google Scholar
- 15.Fernlund, G., Floyd, A.: Process analysis and tool compensation for curved composite L-angles. The 6th Canadian international composites conference p, 14–17 (2007)Google Scholar