Additive Manufacturing (AM) has become the standard for the production of liquid propellant rocket engines, including the Throttleable Liquid Propulsion Demonstrator (TLPD) developed by the Łukasiewicz Research Network – Institute of Aviation. The aim of this thesis is twofold. The first goal is to calibrate a nonlinear material model of AM CuCrZr alloy based on experimental tests. The second goal is to perform a thermostructural analysis of the TLPD2 combustion chamber using that material model. Multiple types of tests were conducted, and manual calibration of the model achieved high accuracy. The model was applied to the FEM analysis of the TLPD2 chamber, showing elastic operation and no lifetime concerns. An additional analysis with increased pressure loads was conducted to compare the new material model with the old model based only on tensile tests. Large differences between the two models are present when plastic deformation occurs.

Related dataset 4TU.ResearchData: https://doi.org/10.4121/9072efcd-23ff-40bb-9b52-c490c28797cc