Abstract

Composites manufacturing processes usually involve multiscale models in both space and time, highly non-linear and anisotropic behaviors, strongly coupled multiphysics and complex geometries. In this framework, the use of simulation for real-time decision making directly in the manufacturing facility is still precluded nowadays, in spite of the impressive progresses reached in numerical analysis and computer science during the last decade. In this paper, a process-specific simulation tool based on reduced order modeling is introduced, the Simulation App. This concept is presented through a practical case involving a multi-physics and coupled problem describing the manufacturing process of a composite outlet guide vane. We show that several manufacturing settings can be simulated in few seconds with the Simulation App, thus enabling fast process optimization. Finally, the advantages over general-purpose simulation software, in the context of process simulation, are discussed.

Highlights

  • Efficient simulation of composite manufacturing processes remains even nowadays, in many cases, a challenging issue, mainly when they involve rich 3D behavior, multi-physics and the necessity of solving many scenarios very fast for optimization purposes [1,2]

  • Simulation based on reduced order modeling we describe the simulation strategy, including the different simulation modules based on ROM techniques and their coupling

  • In this paper we have introduced the Simulation App concept, a process-specific simulation tool based on reduced order modeling techniques

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Summary

Background

Efficient simulation of composite manufacturing processes remains even nowadays, in many cases, a challenging issue, mainly when they involve rich 3D behavior, multi-physics and the necessity of solving many scenarios very fast for optimization purposes [1,2]. We recall the main features of the ROM methods that were implemented, emphasizing both the construction of the reduced models in the offline stage and their utilization in the online stage, as a part of the Simulation App. The coupled model described in “Process description and physics modeling” section involves three primary unknown fields, the temperature T (x, t), the pressure P(x, t) and the curing degree α(x, t). We are able to define different simulation modules, described below, one for each physics involved in the manufacturing process This approach is effective in the context of ROM, because it allows applying the most suitable techniques depending on the nature of the equations. We summarize the main ingredients of these three techniques

The Proper Orthogonal Decomposition
Assembling the reduced order model
The transpose is denoted by
Press Control Algorithm
Findings
Conclusions

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