Ricks, "Acoustic impact evaluation of ballistic damage in VARTM
composites," in Proceedings of Ninth International Congress on Acoustics and Vibration (IIAV), pp.
Screening test with carbon fiber twill relied on a vacuum assisted resin transfer process (VARTM
) as shown in Figure 13.
The workshop consisted of oral and video presentations, webinar and practical demonstrations about the latest state of the art in VARTM
, LRI and SMC technologies for developing structural component.
The main advantage of VARTM
over pultrusion is the unlimited size and geometry possibilities of the components.
Poisson's ratio of 0.22 was assumed (a typical value for VARTM
manufactured unidirectional glass fiber/epoxy composites).
Tanoglu, "Artificial neural network (ANN) prediction of compressive strength of VARTM
processed polymer composites", Computational Material Science, vol.
Use of polyurethane resin is being pioneered for RTM and its vaccum-assisted variation (VARTM
) by BaySystems, a Bayer MaterialScience company, Pittsburgh, as an alternative to unsaturated polyester, vinyl ester, or epoxy.
This tackifier, designed for low temperature cure VARTM
composites, is said to be useful for curing at ambient temperatures up to 250[degrees]F (121[degrees]C).
Composite laminates were prepared using the vacuum-assisted resin transfer molding (VaRTM
) method [23,24].
This formulation is intended primarily for near room temperature applications such as Vacuum Assisted Resin Transfer Molding (VARTM
) tools, jigs, fixtures and manufacturing aides.
Vacuum-assisted res in transfer molding (VARTM
) is used to mold large composite structures, such as aircraft sections.
This technology can be used for curing of prepreg materials while in an autoclave with vacuum pressure and autoclave pressure forming a low porosity component, or can be used in conjunction with resin transfer systems to Infuse and consolidate the mould and fabric material with the resin in the vacuum assisted resin transfer moulding process (VARTM