Gas permeation and viscoelastic deformation of prepregs in composite manufacturing processes

1995 ◽  
Vol 16 (5) ◽  
pp. 370-377 ◽  
Author(s):  
J.-D. Nam ◽  
J. C. Seferis ◽  
S.-W. Kim ◽  
K.-J. Lee
Keyword(s):  
Gas Permeation ◽  
Manufacturing Processes ◽  
Viscoelastic Deformation ◽  
Composite Manufacturing

Investigation on the Influence of Pressure Terms in a Volume-Averaged Energy Balance in the Modelling of Liquid Composite Moulding Processes

2019 ◽  
Vol 809 ◽  
pp. 480-486
Author(s):  
Rohit George Sebastian ◽  
Christof Obertscheider ◽  
Ewald Fauster ◽  
Ralf Schledjewski
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Energy Balance ◽  
Matrix Material ◽  
Energy Balance Equation ◽  
Manufacturing Processes ◽  
Composite Manufacturing ◽  
Liquid Composite Moulding ◽  
The Matrix ◽  
Computational Fluid Dynamics Cfd

The growing use of composite materials has generated interest in improving and optimising composite manufacturing processes such as Liquid Composite Moulding (LCM). In LCM, dry preforms are placed in a mould and impregnated with the matrix material. The efficiency of filling the moulds can be improved by using Computational Fluid Dynamics (CFD) filling simulations during the design of the mould. As part of an on-going effort to develop a CFD tool for the simulation of LCM processes, a volume averaged energy balance equation has been derived and implemented in a custom OpenFOAM solver. The energy balance is implemented in a custom OpenFOAM solver with and without the pressure terms for comparison with results from RTM experiments. It is found that the pressure terms do not significantly influence the results for LCM processes.

scholarly journals Developing a Learning Factory to Increase Resource Efficiency in Composite Manufacturing Processes

Procedia CIRP ◽  
2015 ◽  
Vol 32 ◽  
pp. 64-69 ◽  
Author(s):  
Johannes Böhner ◽  
Max Weeber ◽  
Frank Kuebler ◽  
Rolf Steinhilper
Keyword(s):  
Resource Efficiency ◽  
Manufacturing Processes ◽  
Composite Manufacturing

scholarly journals A Generic Cost Estimating Approach for a Composite Manufacturing Process Assessment

2021 ◽  
Author(s):  
Justyna Rybicka ◽  
Teresa Purse ◽  
Brett Parlour
Keyword(s):  
Cost Estimation ◽  
Model Development ◽  
Manufacturing Processes ◽  
Cost Estimating ◽  
Estimation Model ◽  
Composite Manufacturing ◽  
Composites Manufacturing ◽  
Cost Estimation Model ◽  
High Level ◽  
The Cost

Cost estimation helps build confidence in the feasibility of the development of novel manufacturing processes. This paper focuses on the exploration of the cost estimation for novel manufacturing processes for decision support. One of the aspects of estimation is building credibility around the analysis, especially, in the early stages of planning. Cost estimating guidelines provide a good overview of the cost estimation steps but there is a requirement for guidelines for cost estimation model development. Through building on an understanding of the cost estimation principles, as well as cost estimation modelling, a high-level generic approach for process cost estimation is proposed. Further, a demonstration of a cost estimation modelling approach used for composites manufacturing in the automotive sector is provided, outlining the steps in cost estimation model development.

Sign in / Sign up

Export Citation Format

Share Document