Our news editors obtained a quote from the research, "With growing demands for applications of composites in elevated temperature environments, significant cost savings can be achieved by employing the VARTM process. However, implementation of the VARTM process for fabricating elevated temperature composites presents unique challenges such as high porosity and low fiber volume contents. In the present work, a low cost and reliable VARTM process is developed to manufacture elevated temperature composites for aerospace applications. Modified single vacuum bagging infusion and double vacuum bagging infusion processes were evaluated. Details of the method to obtain high quality composite parts and the challenging issues related to themanufacturing process are presented. Density and fiber volume fraction testing ofmanufactured panels showed that high quality composite parts with void content less than 1% have been consistently manufactured. A property database of the resin system and the composites was developed. A three-dimensionalmathematical model has also been developed for flow simulation and implemented in the ABAQUS finite element package code to predict the resin flow front during the infusion process and to optimize the flow parameters."
According to the news editors, the research concluded: "The results of the present study indicate that aircraft grade composite parts with high fiber volume fractions can bemanufactured using the developed elevated temperature VARTM process."
For more information on this research see: Elevated-temperature vacuum-assisted resin transfer molding process for high performance aerospace composites.
The news editors report that additional information may be obtained by contacting V. Menta,
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