Bonded window cover with joint assembly for a wind turbine rotor blade

A rotor blade assembly for a wind turbine, the rotor blade assembly comprising:

• a first blade segment defining a first joint end;
• a second blade segment defining a second joint end;
• a blade insert extending between a forward end coupled to the first blade segment and an aft end coupled to the second blade segment, the blade insert comprising:
• a top side extending between a forward edge and an aft edge, the top side defining a top scarfed section at its forward edge;
• and,
• a bottom side extending between a forward edge and an aft edge, the bottom side defining a bottom scarfed section at its forward edge,
• wherein at least a portion of the forward edge of the top side is offset relative to the forward edge of the bottom side such that an access window is defined between the top side and the first blade segment when the forward end of the blade insert is positioned adjacent to the first joint end of the first blade segment, the access window comprising a flange that extends around a periphery thereof;
• and,
• a window cover bonded to the flange of the access window via a bonding agent, the window cover being sized such that a peripheral gap exists between a perimeter of the window cover and the access window, the peripheral gap being filled with the bonding agent.

A rotor blade assembly for a wind turbine, the rotor blade assembly comprising:

• a first blade segment;
• a second blade segment arranged with the first blade segment at a joint,
• an access window defined within at least one of the first blade segment or the second blade segment, the access window comprising a flange that extends around a periphery thereof;
• a window cover bonded to the flange of the access window via a bonding agent;
• and,
• at least one joint assembly at an interface between the window cover and the access window, the joint assembly comprising a transition from two sets of inner skin layers to one set of inner skin layers, wherein, at the interface, the window cover comprises a first region having a single-ply thickness and a second region having a double-ply thickness.