Download or read book Three-Dimensional Geometric Nonlinear Contact Stress Analysis of Riveted Joints written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-17 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The problems associated with fatigue were brought into the forefront of research by the explosive decompression and structural failure of the Aloha Airlines Flight 243 in 1988. The structural failure of this airplane has been attributed to debonding and multiple cracking along the longitudinal lap splice riveted joint in the fuselage. This crash created what may be termed as a minor "Structural Integrity Revolution" in the commercial transport industry. Major steps have been taken by the manufacturers, operators and authorities to improve the structural airworthiness of the aging fleet of airplanes. Notwithstanding, this considerable effort there are still outstanding issues and concerns related to the formulation of Widespread Fatigue Damage which is believed to have been a contributing factor in the probable cause of the Aloha accident. The lesson from this accident was that Multiple-Site Damage (MSD) in "aging" aircraft can lead to extensive aircraft damage. A strong candidate in which MSD is highly probable to occur is the riveted lap joint. Shivakumar, Kunigal N. and Ramanujapuram, Vivek Langley Research Center STRESS ANALYSIS; RIVETED JOINTS; DEBONDING (MATERIALS); FATIGUE (MATERIALS); STRUCTURAL FAILURE; EXPLOSIVE DECOMPRESSION; COMMERCIAL AIRCRAFT; STRESS DISTRIBUTION; NONLINEARITY; CRASHES; CIVIL AVIATION...