详情

原文传递 Analytical Modeling of Composite-to-Composite (Scarf) Joints in Tension and Compression.

题名：	Analytical Modeling of Composite-to-Composite (Scarf) Joints in Tension and Compression.
作者：	greene, t. r.
关键词：	computerized simulation, loads(forces), shipbuilding, glass reinforced plastics, vinyl plastics, compressive properties, carbon reinforced composites, energy transfer, tension, fracture(mechanics), theses, panels, finite element analysis, experimental dat
摘要：	Fracture mechanics-based multi-level computational modeling and simulation techniques were developed to predict failure strengths of composite scarf joints under tension or compression. Global, local, and element level models were used in the study to calculate the energy release rates at the scarf joints. The study showed that explicit modeling of the resin layer at the scarf joint, where cracks initiate, was important for accurate prediction of the joint failure strengths. In addition, the consideration of the joint interface slope in the fracture model was important especially for compressive joint failure strengths. In terms of the mixed failure criteria for crack propagation, the interactive biquadratic criterion was found to be useful for reliable prediction of joint failure strengths. The predicted strengths were in good agreement with experimental data, which were obtained for two different kinds of polymer composites: e-glass/epoxy and carbon/epoxy. / NOTE: Master's thesis. / Supplementary Notes: The original document contains color images. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0724；87p
报告类型：	科技报告