On July 19, 1999, at 1313 central daylight time, a Cessna 182N, N92215, sustained substantial damage during a hard landing and subsequent porpoise on runway 06 (7,699 feet X 150 feet dry/grooved concrete) at Austin Straubel International Airport, Green Bay, Wisconsin. The private rated pilot and three passengers reported no injuries. Visual meteorological conditions prevailed during the 14 CFR Part 91 flight. The airplane was not operating on a flight plan. The flight originated from Mackinac Island Airport, Mackinac Island, Michigan at 1200. In a written statement, the pilot said that he was cleared to land on runway 06. He said that the airplane was moving at 85 mph on final approach and he was in control for a good landing right on the numbers. He said that as he flared, the main wheels hit the runway. The pilot said that as the nose wheel touched down, it collapsed. He said that the propeller struck the runway and stopped the motor. During a telephone interview, the pilot said that on touchdown the nose gear went down and the airplane porpoised a couple times. The pilot stated that on the third porpoise he felt the nose gear collapse.