Composite laminate and load-introduction component for a load-introduction joint
AssigneeAirbus Helicopters Deutschland GmbH
InventorMoritz BUESING
Life of this patent
Estimating the term…
Abstract
A composite laminate for connection to at least one attachment component in a load-introduction joint, said composite laminate comprising an opening that is adapted to receive a load-introduction component of said load-introduction joint, wherein a prefailure indication element is provided in the region of said opening, said prefailure indication element being modifiable by said load-introduction component in a prefailure mode of said load-introduction joint for indication of an impending function-affecting failure of said composite laminate. The invention is further related to a corresponding load-introduction component.
Claims20
A composite laminate for connection to an attachment component in a load-introduction joint, the composite laminate comprising:
- an opening that comprises an inner peripheral sidewall and extends between opposing sides of the composite laminate, the opening being adapted to receive a load-introduction component of the load-introduction joint therethrough such that the load-introduction component comes 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.
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.
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.
Dependencies are inferred from the claim text.