Vacuum Assisted Resin Transfer Molding

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Composite sandwich structures are used in a wide variety of applications ranging from maritime structure to spacecraft. Repairs of such structures are often complicated, especially when only one side of the composite structure is damaged or when the area to be repaired is difficult to access. Bonding of the honeycomb structure to the remaining composite side during one-sided repairs often leads to heat damage for surrounding materials.

Researchers at Purdue University have developed an advanced technique for repairing sandwich composite structures. This technology allows for advanced single-side repair without the usual heat damage that arises from bonding the honeycomb structure to the intact composite structure. Additionally, this technology allows for repair completion in areas where both sides of the composite structure do not necessarily have adequate access. Together, these techniques allow for more effective repair of sandwich composite structures.

Advantages:
-Allows repair in areas with poor access
-Repair sandwich composite structures without heat damage

Potential Applications:
-Materials
-Manufacturing
Mar 24, 2014
NATL-Patent
United States
9,944,026
Apr 17, 2018

May 4, 2012
PCT-Patent
WO
(None)
(None)

May 6, 2011
Provisional-Patent
United States
(None)
(None)
Purdue Office of Technology Commercialization
1801 Newman Road
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org