Joint member of composite and joint structure

A joint member formed of a composite including reinforcement fibers and resin, wherein:

• the joint member is configured to be joined with another joint member to form a joint structure capable of enduring a tensile load in a load direction in which the joint member and the other joint member are separated from each other at a joined portion of the joint structure in a longitudinal direction of the joint member;
• the joint member comprises:
• a main body part;
• and
• a joint part connected with the main body part at an end part of the main body part in the longitudinal direction of the joint member;
• the joint part includes either projecting parts provided with bulging parts to form a dovetail shape or recessed parts provided with bulging parts to form a dovetail groove, the joint part being configured to be joined to a joint part which has a complementary shape of the other joint member to endure the tensile load in the longitudinal direction of the joint member;
• the joint part has an orientation pattern having anisotropy such that fiber directions of the reinforcement fibers included in the joint part include a fiber direction different from the longitudinal direction of the joint member;
• the reinforcement fibers have fiber directions, each of which is aligned in one direction;
• and
• the joint part has an orientation pattern in which a layer having a fiber direction extending along the longitudinal direction of the joint member and a layer having a fiber direction crossing the longitudinal direction of the joint member are laid up.

A joint member formed of a composite including reinforcement fibers and resin, wherein:

• the joint member is configured to be joined with another joint member to form a joint structure capable of enduring a tensile load in a load direction in which the joint member and the other joint member are separated from each other at a joined portion of the joint structure in a longitudinal direction of the joint member;
• the joint member comprises:
• a main body part;
• and
• a joint part connected with the main body part at an end part of the main body part in the longitudinal direction of the joint member;
• the joint part includes either projecting parts provided with bulging parts to form a dovetail shape or recessed parts provided with bulging parts to form a dovetail groove, the joint part being configured to be joined to a joint part which has a complementary shape of the other joint member to endure the tensile load in the longitudinal direction of the joint member;
• the joint part has an orientation pattern having anisotropy such that fiber directions of the reinforcement fibers included in the joint part include a fiber direction different from the longitudinal direction of the joint member;
• the reinforcement fibers are discontinuous reinforcement fibers;
• and
• the joint part has an orientation pattern in which the reinforcement fibers have fiber directions scattered in the bulging parts.

A joint member formed of a composite including reinforcement fibers and resin, wherein:

• the joint member is configured to be joined with another joint member to form a joint structure capable of enduring a tensile load in a load direction in which the joint member and the other joint member are separated from each other at a joined portion of the joint structure in a longitudinal direction of the joint member;
• the joint member comprises:
• a main body part;
• and
• a joint part connected with the main body part at an end part of the main body part in the longitudinal direction of the joint member;
• the joint part includes either projecting parts provided with bulging parts to form a dovetail shape or recessed parts provided with bulging parts to form a dovetail groove, the joint part being configured to be joined to a joint part which has a complementary shape of the other joint member to endure the tensile load in the longitudinal direction of the joint member;
• the joint part has an orientation pattern having anisotropy such that fiber directions of the reinforcement fibers included in the joint part include a fiber direction different from the longitudinal direction of the joint member;
• the main body part and the joint part have a lattice or a truss structure formed of a plurality of first frame members which extend, with their longitudinal direction, in a first direction, and a plurality of second frame members which extend, with their longitudinal direction thereof, in a second direction which is different from the first direction;
• and
• the joint part has an orientation pattern in which the reinforcement fibers are provided along the first direction and the second direction.