Precured fibrous strip for a load-carrying structure for a wind turbine blade

A precured fibrous composite strip for a load-carrying structure for a wind turbine blade, wherein the strips has:

• a first longitudinal end and a second longitudinal end;
• a first side and a second side with a width defined as a distance between the first side and the second side;
• and
• an upper surface and a lower surface with a thickness defined as a distance between the upper surface and the lower surface,
• wherein the strip comprises a taper region with a taper length at the first longitudinal end, wherein the strip in the taper region continuously tapers towards the first longitudinal end,
• wherein the taper region tapers in thickness towards the first longitudinal end and comprises:
• a first taper section proximal to the first longitudinal end and having a first average taper angle, the first average taper angle being an average of first tapering angles of the taper region, with respect to a longitudinal direction, within the first taper section;
• a third taper section distal to the first longitudinal end and having a third average taper angle, the third average taper angle being an average of third tapering angles of the taper region, with respect to the longitudinal direction, within the third taper section;
• a second taper section between the first taper section and the third taper section and having a second average taper angle, the second average taper angle being an average of second tapering angles of the taper region, with respect to the longitudinal direction, within the second taper section,
• wherein the second average taper angle is larger than both the first average taper angle and the third average taper angle.