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Record Details

Record 46 of 28220
Damage Tolerance of Large Shell Structures
Author and Affiliation:
Minnetyan, L.(Clarkson Univ., Dept. of Civil and Environmental Engineering, Potsdam, NY United States)
Chamis, C. C.(NASA Lewis Research Center, Cleveland, OH United States)
Abstract: Progressive damage and fracture of large shell structures is investigated. A computer model is used for the assessment of structural response, progressive fracture resistance, and defect/damage tolerance characteristics. Critical locations of a stiffened conical shell segment are identified. Defective and defect-free computer models are simulated to evaluate structural damage/defect tolerance. Safe pressurization levels are assessed for the retention of structural integrity at the presence of damage/ defects. Damage initiation, growth, accumulation, and propagation to fracture are included in the simulations. Damage propagation and burst pressures for defective and defect-free shells are compared to evaluate damage tolerance. Design implications with regard to defect and damage tolerance of a large steel pressure vessel are examined.
Publication Date: May 01, 1999
Document ID:
19990115860
(Acquired Dec 10, 1999)
Subject Category: STRUCTURAL MECHANICS
Document Type: Reprint
Publication Information: Journal of Pressure Vessel Technology; Volume 121; 188-195
Publisher Information: American Society of Mechanical Engineers, United States
Financial Sponsor: NASA Lewis Research Center; Cleveland, OH United States
Organization Source: NASA Lewis Research Center; Cleveland, OH United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COMPUTERIZED SIMULATION; DAMAGE; FRACTURE STRENGTH; FRACTURING; STRUCTURAL FAILURE; TOLERANCES (MECHANICS); FINITE ELEMENT METHOD; ITERATIVE SOLUTION; FRACTURE MECHANICS; CRACK PROPAGATION; CONICAL SHELLS; PRESSURE VESSELS; CRACK INITIATION; GRID GENERATION (MATHEMATICS)
Availability Source: Other Sources
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