During this reporting period, Universidad de Sevilla has been working on WPs 1, 2, 3 and also contributing with the management of the project in work package 5.
Related to the testing activity (WP1), Universidad de Sevilla developed a test plan, in which the definition of the test specimens, the impacts that will be carried out on them and the tests to be done are defined. Furthermore, it has been designed, calculated, manufactured and set-up the tooling to make the impacts on the coupons. Also, it has been designed, calculated and manufactured the tooling for the tensile and compression static and dynamic tests. Preliminary impact trials were done on coupons in order to validate the impact tooling and methodology.
Related to the modelling, a methodology for run-out failure prediction has been developed, which is described in the corresponding deliverable (D2.1). This methodology should be corroborated and adjusted with part of the results obtained from the experimental test campaign. Since none of these tests have been performed due to the delay in the provision of the material, it has been impossible to complement the deliverable with an example of its applicability (and it is the reason why it has not been submitted to the platform at the moment of writing this technical report).
During this reporting period Sofitec has been contributing to the development of the specifications for the tests specimens and providing information of the manufacturing for the test plan generated in WP1. The manufacturing activity was defined including all the process parameters and raw materials to be used in coordination with Topic Manager, the materials order was made, tooling for manufacturing was designed and manufactured and finally the specimens for the WP1 test campaign were manufactured and trimmed making a complete set of 8 multi-stiffened (making a total of 32 stringers) panels as part of the task T1.2 following the configurations provided by the Universidad de Sevilla and Dassault Aviation specifications. Sofitec has also carried out the dimensional control of the manufactured specimens. This specimens manufacturing is intended to support the modelling of the stiffeners together with the corresponding tests.
ISSIM has supported the development of the test plan. They have also supported the development of mono-stiffener FE model based on shell elements, which reproduces, with enough precision, the stress magnitudes estimated to be used for the failure criteria, using ANSYS.
Finally, ISSIM has worked on the design of innovative stiffener run-out. All actions related to preprocessing, model creation and establishment of optimization strategies has been accomplished. Subtask depending on test results are pending, as will be explained in section 1.2.
