公开(公告)号：US20220325692A1

公开(公告)日：2022-10-13

申请号：US17620500

申请日：2020-06-16

Applicant: Blade Dynamics Limited ,  LM Wind Power A/S

Inventor： Manish MUKHERJEE ,  Tobias BERGNER ,  Laszlo BARTHA

IPC: F03D1/06 ,  B29C70/08 ,  B29C70/44

Abstract: A shell core (1) configured for being incorporated in a shell of a fiber reinforced polymer composite structure wherein: the core has a first surface (2) and an opposite second surface (3), a first groove (4) is formed in the first surface (2) and divides the core into a first core part (5) and a second core part (6), the first groove (4) is defined by two opposing side walls (7a,7b) and a bottom (8), the distance T1 between the bottom (8) of the groove (4) and the second surface (3) of the core is of such a size that the core is flexible/bendable along the first groove, and the opposing walls (7a,7b) converge towards the bottom (8) forming an angle A1 of at least 45° with each other.