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Showing 1 to 20 of 128 for “"composite structure"”.
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Integrated analysis procedure of aerospace composite structure
The emergence of composite material application in major commercial aircraft design, represented by the Boeing 787 and Airbus A350-XWB, signals a new era in the aerospace industry. The high stiffness to weight ratio of continuous fiber composites (CFC) makes CFCs one of the most important materials …
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Biomimetic composite structure to simulate tendon performance
The objective of this study is to design a composite that mimics the mechanical performance of a tendon. The biomimetic composite structure was composed of an elastomeric matrix reinforced with continuous polymer fibers. The matrix material was a thermoplastic polyurethane, Estane 5714 F5P. A …
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Cost effective design of composite structure for automotive applications
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Composite Structure Ultimate Strength Prediction from Acoustic Emission Amplitude Data
<p>The acoustic emission (AE) given off by a structure as it is stressed provides a passive means to characterize flaw growth activity in complex structures. This thesis demonstrates how the qualitative analysis of AE data can be refined to provide a quantitative tool for predicting the ultimate …
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Composite structure of tropical cyclones in the SW Indian Ocean
… examines SW Indian Ocean tropical cyclone (TC) structure as a function of movement using ECMWF gridded data. Analyses of the mean summer climate for the period 1987 1992 shown that conditions conducive to the development ofTCs are present between the latitudes 5° and 15°S. Six westward moving …
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Experimental Detection and Quantitative Interrogation of Damage in a Jointed Composite Structure
… over a variety of damaged scenarios on a composite lap-joint assembly. Damage was implemented as bolt torque loss within the joint. A damage index was used as the key diagnostic feature to interrogate damage within the structure. Pattern recognition of the damage index, in addition to a …
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Advanced Design Optimization for Composite Structure: Stress Reduction, Weight Decrease and Manufacturing Cost Savings
<p><em>An injection moldable chopped fiber composite actuator with detailed drawing and tolerances was designed within one year. A vendor was selected and a quote for injection molding tooling cost for production was obtained and the first prototype was built in addition of six months. The risks …
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Simulating Dynamic Vehicle Maneuvers Using Finite Elements For Use In Design Of Integrated Composite Structure
… increasing being manufactured with integrated composite structures in an effort to increase the performance of the system while decreasing weight. The increased use of composite structures requires more details of the loading conditions and evaluation metrics than the mild steel structures they …
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A Study of the Eastern Atlantic Intertropical Convergence Zone: Composite Structure and Initiation of Organized Convection
… the summer of 1974 were analyzed to obtain the composite structure of the Intertropical Convergence Zone (ITCZ) in the Eastern Atlantic. The composite was based upon the location of the surface confluence line. Separate composites were made for disturbed and suppressed cases in each of the three …
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A Study of the Eastern Atlantic Intertropical Convergence Zone: Composite Structure and Initiation of Organized Convection
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2011-06-02T20:34:08Z No. of bitstreams: 1 1981_russell.pdf: 9277731 bytes, checksum: 79ce0e4750a390b3bb0d3f254c7c10b7 (MD5)
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The effects of design, manufacturing processes and operations management on the assembly of aircraft composite structure
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991 and Thesis (M.S.)--Sloan School of Management, 1991.
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Development of a Finite Element Model for Predicting the Impact Energy Absorbing Performance of a Composite Structure
… high strength-to-weight ratio, Fiber Reinforced Composite (FRC) materials are well suited for use in high performance racing applications where weight must be kept to a minimum. Formula SAE (FSAE) race cars are designed and built by college students, roughly following the model of a scaled down …
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Active vibration control of composite structures
The vibration control of composite beams and plates subjected to a travelling load is studied in this dissertation. By comparing the controlled as well as uncontrolled responses of classical and refined structural models, the influence of several important composite structure properties which are …
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Residual Compressive Strength Prediction of Carbon/Epoxy Laminates Subjected to Low Velocity Impact Damage
<p>Low energy impact damage to a composite structure is difficult to detect and can have profound effects on compressive strengths. Low energy impact damage is sometimes termed as barely visible impact damage (BVID). Detecting BVID is only possible by implementing nondestructive testing (NDT) …
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Buckling, Flutter, and Postbuckling Optimization of Composite Structures
… with the design and optimization of a large composite structure. In design of large structural systems, it is customary to divide the problem into many smaller independent/semi-independent local design problems. For example, the wing structure design problem is decomposed into several local …
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Problems of Hawaiian adolescence
… of this study embrace rather a discussion of the composite structure of the Hawaiian child with special reference to the racial distribution. The home life and education of Hawaiian adolescents are also examined.</p>
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Chain rules for Rademacher complexity
… over empirical Rademacher complexity of a composite function class. Such an estimate can be applied to learning problems where the hypotheses have composite structure or where more than one function is needed to determine the empirical loss.
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Thermally Induced Vibration of a Cross-Ply Laminated Plate with Hygrothermal Effects (Exact Solution)
… design is the use of fiber-reinforced polymeric composite material, notably in advanced aircraft and projectiles. These applications expose the materials to varied environmental conditions, therefore the material performance under these conditions is of great interest. One aspect of this is the …
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The Effect of Sensor Mass, Sensor Location, and Delamination Location of Different Composite Structures Under Dynamic Loading
… location, and delamination location of different composite structures under dynamic loading. The study pertains to research of the use of accelerometers and dynamic response as a cost-effective and reliable method of structural health monitoring in composite structures. The composite structures in …
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Smart Nanocoated Structure for Energy Harvesting at Low Frequency Vibration
… this research, a piezoelectric power generator composite prototype was developed to maximize the power output of the system. A lead zirconate titanate (PZT) composite structure was formed and mounted on a cantilever bar and was studied to convert vibration energy of the low range vibrations at …
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