A structural joint assembly for a vehicle is provided with a first thermoplastic composite member having a protrusion containing fibrous material. A reinforcement member is provided with a receptacle for mating engagement with the protrusion. A second thermoplastic member is mounted to the first thermoplastic member over the protrusion such that the reinforcement member is provided between the first thermoplastic member and the second thermoplastic member but not adhesively bonded or overmolded therebetween. A method of manufacturing a structural joint assembly and a structural joint assembly manufactured by a method are disclosed. The methods include molding a first thermoplastic member with a protrusion with fibrous material and a second thermoplastic member. A reinforcement member has a receptacle and is mounted to the first thermoplastic member. The receptacle is retained by the protrusion without adhesive bonding or overmolding. The second thermoplastic member is joined to the first thermoplastic member.