You will create five components for the T-joint section by defining their OSSs and plies. The plies are added in five Modeling Groups following this sequence:
[90, 0 +45 -45, 90, 0°] 0.1 mm UD
10 mm Honeycomb core
[0, 90 +45 -45, 0, 90°] 0.1 mm UD
5 x ([0, 90°] 0.1 mm UD)
4 x ([+45, -45°] 0.1 mm UD)
4 x ([+45, -45°] 0.1 mm UD)
[+45, -45, 0, 90°] 0.1 mm UD