The pilot landed and applied brakes when the right brake reportedly did not work. A "strong gust" of wind lifted the left wing and the airplane hit a runway sign. A mechanic at the airport stated he inspected the airplane damage and advised the pilot that the airplane was unsafe to fly. The leading edge of the outboard right wing was crushed inward and torn open. The brakes were not inspected, but the pilot then flew the airplane without repair to another airport where it landed without incident.