Task T3.1 Experimental fatigue characterisation [ESR4]: Characterisation of relevant AM material microstructures under dynamic loading will be carried out. This information will be presented in the form of a suitable stress versus number of cycles to failure (S-N) curve to be passed on for further computational assessment of the structure under dynamic loading (WP2)
Task 5.2: Laboratory testing of 3D printed structured material for their vibro-acoustic and thermal performance [ESR3 & ESR4]: The novel material generated in T5.1 will be additively manufactured and its performance for vibration and thermal properties as well as for fatigue will be assessed.
Task T4.1 Evaluation of appropriate materials constitutive models [ESR4]: Characterisation of relevant materials response (i.e. AM austenitic & duplex stainless steels) under complex loading & thermal cycles will be carried out to evaluate appropriate constitutive materials models for AM microstructures & to assess how microstructural changes during service may affect such models. This will provide a direct input to WP3 (Task T3.2).
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Task T4.2 Fatigue performance and data evaluation (feeding into WP3) [ESR4]: Informed by the results of T4.1, fatigue assessments of crack initiation & propagation in these AM materials systems will be carried out, to evaluate the constitutive models produced in T4.1 and to validate the lifing approaches developed in WP3 (T3.2)
Task T3.2 Fatigue life prediction accounting for manufacturing uncertainties [ESR2 & 4]: Informed by the results of Task T4.1, and also the frequency response calculations carried out in WP2 (T2.5), fatigue life prediction capabilities will be developed here. The academic novelty will be in developing new methods within the framework of uncertainty given the likely defect distributions in AM materials.
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