Advanced sub-scale component high temperature multi-axial test capability

ABSTRACT:In this proposal for SBIR program (phase-II), Test Devices, Inc, in conjunction with its industry partners Pratt & Whitney and Mechanical Solutions, Inc., will leverage its experience in the domain of high temperature full component and subscale testing to develop a prototype testing facility capable of conducting tests that will evaluate components under more realistic service environments to include:Centrifugal loading and thermal gradients to produce multiaxial stress states at high temperatures2000F target test temperature capability with thermal gradientUp to 100,000rpm disk test speedCapability to test in vacuum and controlled partial atmospheric conditionsCapability to test at pressures up to 50psi with gas species is considered as a part of stretch goals The HSST Phase-II project will be built on the successful result of phase-I work (AF141-175). The new temperature control system developed in the phase-I has successfully demonstrated its capability; it has generated a rim temperature of 2430F with a very steep thermal gradient (1100F/in) on a 5.0 (OD) disk. The result of phase-II work will culminate in a prototype subscale spin test capability with a thermal gradient, which is capable of generating an engine-like multi-axial stress field at realistic temperatures. BENEFIT:The USAF and engine OEMs will benefit from the highly-realistic subscale test facility proposed for the HSST concept in that it will provide critical data for the development and validation of coatings, hybrid microstructures, and other advanced material systems as well as support Integrated Computational Materials Engineering (ICME) activities and advances of component design and usage based lifing analysis. This will assist in speeding the development of new engines that are lighter, more fuel efficient and less polluting.