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A Material Model for the Lifetime Prediction of Regeneratively Cooled Nozzle Structures

Regeneratively cooled nozzle structures of a Reusable Launch Vehicle (RLV) belong to the most critical components of a space shuttle main engine. The severe operating conditions have been experimentally observed to cause the so‐called “dog‐house” failure mode. Within the DFG Project to develop new technologies for the future space transportation system, a material model which sufficiently describes this phenomenon is needed. In this project we are using a new continuum mechanical approach motivated by a rheological model. (© 2009 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)