Composite laminate and load-introduction component for a load-introduction joint

A load-introduction joint, comprising:

• an attachment component;
• a load-introduction component;
• and
• a composite laminate that is mounted to the attachment component via the load-introduction component, the composite laminate comprising:
• an opening that comprises an inner peripheral sidewall and extends between opposing sides of the composite laminate, wherein the opening accommodates at least partly the load-introduction component such that the load-introduction component is at least partly in direct contact with the inner peripheral sidewall of the opening in a normal operation mode of the load-introduction joint;
• and
• a prefailure indication element that is arranged inside the opening on a portion of the inner peripheral sidewall of the opening, the prefailure indication element being modifiable by the load-introduction component in a prefailure mode of the load-introduction joint from a first condition in the normal operation mode of the load-introduction joint to a second condition in the prefailure mode for indication of an impending function-affecting failure of the composite laminate, wherein the prefailure indication element of the composite laminate is compressible or partially destructible by the load-introduction component in the prefailure mode from the first condition in the normal operation mode to the second condition in the prefailure mode and comprises at least one prefailure indication projection that is arranged on the inner peripheral sidewall of the opening of the composite laminate, wherein the at least one prefailure indication projection is arc-shaped, and wherein the at least one arc-shaped prefailure indication projection is arranged between a first and a second arc-shaped axial recess provided inside the opening of the composite laminate on the inner peripheral sidewall of the opening.

A composite laminate for connection to at least one attachment component in a load-introduction joint, the composite laminate comprising:

• an opening extending between opposing sides of the composite laminate and having a central axis thereof, the opening being adapted to receive a load-introduction component of the load-introduction joint;
• and
• a prefailure indication projection defined in and extending along a portion of a peripheral sidewall of the opening, the prefailure indication projection having a first position and a second position, the projection being compressed or partially destructed by the load-introduction component when in the second position relative to when in the first position for indication of an impending function-affecting failure of the composite laminate,
• wherein the prefailure indication projection comprises a projection defined between axially opposing first and second recesses that extend radially away from the central axis into the peripheral sidewall of the opening, and
• wherein the prefailure indication projection extends radially toward the central axis between the first and second recesses.