A fixture for testing a tubular member simultaneously in bending and torsion is disclosed. The fixture includes first and second attachment elements that are configured to couple to the tubular member, and a load shoe that is configured to fit within the tubular member. The load shoe includes a body having a contact surface configured to contact a portion of an internal surface of the tubular member and at least one load reaction strut coupled to the body. The load reaction strut is configured to pass through a hole in the tubular member and accept a first force applied in a first direction that is perpendicular to an axis of symmetry of the tubular member.