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Enhanced material lifing model for rotating welded structures

Objective

"Green and sustainable engines require accurate and well documented material data for safe operation of the engines at optimum efficiency. The SAGE project aims at demonstrating open rotor engines and technologies to reduce fuel consumption, weight and increased efficiency of engine components. Structural integrity and safety of engine critical parts have to be considered with regard to design, manufacturing aspects and in-service maintenance and overhaul.

The engine operating conditions, thermal and mechanical loads, material properties and other influencing parameters are affecting the Approved Life of the component. Extensive analysis, component & engine tests, and inspections during both component manufacturing and in-service have to be performed for verification. In particular, the regulations required for critical parts to fulfil appropriate damage tolerance criteria has to be considered, and the potential for failure from material, manufacturing and service induced anomalies within the Approved Life of the part. This means that the potential existence of various imperfections, defects and flaws in the component are recognized and are due to material issues, component design and manufacturing. This situation can be handled through the incorporation of fracture resistant design, process control and Non-destructive Testing (NDT).

In fabricated components and structures different visual inspection and NDT methods are being used for weld inspection. The quality of the welds will determine the fatigue life of a component. This project will focus on welds made in IN718, both laser welds and TIG welds. Before testing the specimens will be NDT tested (WP2), then high cycle fatigue tested (WP4), creep fatigue tested (WP5), fracture surfaces examined (WP3), statistical analysis performed (WP6) and finally the lifing model developed (WP7). The model will then be put to use by the topic manager for design of green and sustainable engines."
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Coordinator

RISE KIMAB AB

Address

Po Box 7047
164 07 Kista

Sweden

Activity type

Other

EU Contribution

€ 133 809,83

Administrative Contact

Henrik Andersson östling (Dr.)

Participants (5)

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STICHTING NATIONAAL LUCHT- EN RUIMTEVAARTLABORATORIUM

Netherlands

EU Contribution

€ 98 088,40

RISE RESEARCH INSTITUTES OF SWEDEN AB

Sweden

EU Contribution

€ 190 712,10

Sulzer Elbar B.V.

Netherlands

EU Contribution

€ 44 135

CARL ZEISS AB

Sweden

EU Contribution

€ 19 740

CHALMERS TEKNISKA HOEGSKOLA AB

Sweden

EU Contribution

€ 87 464,10

Project information

Grant agreement ID: 323478

Status

Closed project

  • Start date

    1 April 2013

  • End date

    30 June 2016

Funded under:

FP7-JTI

  • Overall budget:

    € 873 241,58

  • EU contribution

    € 573 949,43

Coordinated by:

RISE KIMAB AB

Sweden