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Taking the Witchcraft Out Of Advanced Composite Bicycle Frames
Viewed 350 times since Sun, Jan 6, 2013
Building advanced composite bicycle frames isn’t a matter of having the most exotic ingredients or the fanciest terminology: it’s a matter of quality engineering, materials, and fabrication. After all, just like everything we make, the... Read More
SynCore® Design Guide
Viewed 464 times since Sat, Sep 24, 2011
Efficiency in Advanced Composites Read More
ROTOR CONCEPTS AND A NEW STRUCTURAL DESIGN FOR A VERY LARGE ROTOR BLADE FOR THE MULTIBRID OWECS
Viewed 255 times since Mon, Dec 10, 2012
If the exploitation of wind energy is to provide a significant contribution to environmentally friendly energy pro-duction in densely populated Europe, installation of large wind energy converters in the offshore coastal region is essential. Compared... Read More
REVIEW ON VARIOUS STUDIES OF COMPOSITE LAMINATES WITH PLY DROP-OFF
Viewed 281 times since Wed, Jun 3, 2015
A review on various studies of composite laminates with ply drop-off is presented in this study. Tapered laminated structures, which are formed by dropping of some of the plies at discrete positions over the laminate, have received much attention... Read More
Reliability approach for fi bre-reinforced composites design
Viewed 111 times since Mon, Feb 16, 2015
This study aims at investigating the mechanical reliability of unidirectional fibre-reinforced composites in view of their design optimization. Owing to the manufacturing process, many uncertainties affect inherently the properties of these materials... Read More
Parameters for Fabric Selection
Viewed 209 times since Wed, Oct 8, 2014
In selecting a woven fabric for industrial applications, a number of design parameters may be considered, these are broken down into four basic variables: Yarn Weight, Thread Count, Weave Pattern, and Fabric Finish. The wide range of yarn weights and... Read More
Macromechanics
Viewed 412 times since Wed, Sep 5, 2012
The study of macromechanics as applied to marine composite structures includes analysis of beams, panels and structures. A beam, in its simplest form, consists of one or more laminates supported at each end resisting a load in the middle. The beam... Read More
LESSON 17: APPLICATIONS OF COMPOSITES
Viewed 406 times since Sat, Oct 8, 2011
A number of current applications of composites are illustrated in the following. These applications show quite a variety. Two important areas for use of advanced composites are aerospace and sporting goods, areas where high performance... Read More
LAMINATED CONICAL SHELLS - CONSIDERATIONS FOR THE VARIATIONS OF THE STIFFNESS COEFFICIENTS
Viewed 531 times since Sat, Jun 9, 2012
The stiffness coefficients of a laminated conical shell, orthotropic, or in some more general mode, are usually assumed to be constant. It is shown that due to the geometry of the conical surface, in connection with the filament winding process... Read More
LAMINA PROPERTIES, LAY-UP CONFIGURATIONS AND LOADING CONDITIONS FOR A RANGE OF FIBRE-REINFORCED COMPOSITE LAMINATES
Viewed 514 times since Sat, Jun 9, 2012
This paper gives details of the input data and a description of the laminates provided to all participants in an exercise to predict the strength of composite laminates. The input data include the elastic constants and the stress/strain curves for... Read More
INTRODUCTION TO COMPOSITE MATERIALS
Viewed 415 times since Thu, Oct 18, 2012
This module introduces basic concepts of sti ffness and strength underlying the mechanics of fi ber-reinforced advanced composite materials. This aspect of composite materials technology is sometimes terms micromechanics," because it deals with the... Read More
DEVELOPMENT OF A NEXT GENERATION COMPOSITE ANNULUS FILLER FOR ROLLS ROYCE JET ENGINES
Viewed 138 times since Wed, Mar 23, 2016
There is an on-going trend in aerospace engineering to investigate the opportunitiesto replace metallic components with fibre reinforced composite parts. Within theCleanSky funding scheme of the European Framework Programme 7, the replacement of an... Read More
Designing hybrid materials
Viewed 388 times since Sun, Dec 25, 2011
The properties of engineering materials can be mapped, displaying the ranges of mechanical, thermal, electrical and optical behavior they offer. These maps reveal that there are holes: some areas of property-space are occupied and others are empty.... Read More
DESIGN, MANUFACTURE AND TESTING OF A Bend-Twist. D-spar
Viewed 511 times since Sun, Dec 25, 2011
Studies have indicated that an adaptive wind turbine blade design can significantly enhance the performance of the wind turbine blade on energy capture and load mitigation. In order to realize the potential benefits of aeroelastic tailoring, a... Read More
DESIGN, ANALYSIS, AND OPTIMIZATION OF A CIRCULAR SMART COMPOSITE PANEL
Viewed 356 times since Thu, Dec 22, 2011
An adaptive circular panel is designed to perform active vibration suppression to provide precision positioning. Piezoelectric sensors and actuators embedded in composite panels create lightweight smart structures with increased structural efficiency... Read More
Design Tailoring of Laminated Composite Structures A Tribute to Dr. James H. Starnes, Jr.
Viewed 399 times since Sun, Dec 25, 2011
The primary purpose of this paper is to share the experiences of the author and some of his students in design and optimization of fiber reinforced laminates and laminated composite structures. The experiences are gathered during the past twenty-four... Read More
Design optimization of laminated composites using a new variant of simulated annealing
Viewed 180 times since Mon, Feb 16, 2015
The aim of this study is to minimize the thickness (or weight) of laminated composite plates subject to both in-plane and out-of-plane loading. A new variant of the simulated annealing algorithm is proposed to optimize the lay-up design. Fiber... Read More
Design of Directionally Uniform Extensional and Flexural Stiffness in Quasi-Isotropic Laminates
Viewed 648 times since Sat, Dec 24, 2011
In a quasi-isotropic laminate, the in-plane extensional stiffness is directionally uniform, however, the flexural stiffness varies in radial directions due to stacking sequence effects of unidirectional lamina material. This paper addresses three... Read More
Design of Composite Material Chambers for Solid Propellant Missile Motors
Viewed 351 times since Fri, Dec 23, 2011
A review of the technical research on compnsite materials used in the manufacture of solid propellant missiles has 'been conducted. Current design methods were compared to the methods given in the literature.  Read More
DESIGN OF A COMPOSITE WING EXTENSION FOR A GENERAL AVIATION AIRCRAFT
Viewed 291 times since Sun, Jan 6, 2013
A composite wing extension was designed for a typical general aviation aircraft to improve lift-curve slope, dihedral effect, and lift-to-drag ratio. Advanced composite materials were used in the design to evaluate their use as primary structural... Read More
Design of a composite monocoque frame racing wheelchair
Viewed 266 times since Sun, Jan 6, 2013
Design of present-day racing wheelchairs developed out of necessity and common sense . The chairs first used in racing were everyday chairs ;  through years of trial and modification the racing chairs of today evolved. Very little advanced... Read More
DESIGN GUIDELINES FOR PLY DROP-OFF IN LAMINATED COMPOSITE STRUCTURES
Viewed 1474 times since Fri, Dec 23, 2011
The present investigation aims at developing a few guidelines for the design of tapered composites by means of an analytical study. The guidelines have been developed by studying the effect of important parameters that determine the strength of the... Read More
Design Guide for Composite Enclosures
Viewed 351 times since Fri, Dec 23, 2011
Using lamination theory the basic material properties are used to calculate the mechanical property of a laminate. The figure below shows how laminate properties vary with percent of fiber flow in each direction Read More
Design and analysis of stiffened composite panels for damage resistance and tolerance
Viewed 367 times since Thu, Dec 22, 2011
This paper describes a joint Dutch-Swedish-British programme for reducing the effect of impact on skin-stringer composite panels. An optimisation code for the design of such panels was extended with the capability to optimise panels for "damage... Read More
DESIGN AND ANALYSIS OF COMPOSITE STRUCTURES WITH STRESS CONCENTRATIONS
Viewed 419 times since Thu, Dec 22, 2011
This presentation provides an overview of an analytic procedure which can be used to provide comprehensive stress and strength analysis of composite structures with stress concentrations. The methodology provides designer/analysts with a user... Read More
AXIOMATIC DESIGN OF COMPOSITE HEMISPHERICAL BEARING
Viewed 458 times since Sat, Oct 8, 2011
Composite hemispherical bearings (CHB) are employed for the suspension of high mobility tracked vehicles to transfer the compressive load from the connecting rod to the piston in an inarm suspension unit. During the compressive load... Read More
Analytical Support in Aircraft Certification
Viewed 383 times since Sat, Oct 8, 2011
The high cost of designing a new airplane enforced engineers to look for new cheaper methods. One method for the cost reduction is wide use of computer simulations in designing and certification process. From many different methods of... Read More
An Affordable Approach for Robust Design of Thick Laminated Composite Structure
Viewed 471 times since Fri, Sep 30, 2011
A systematic and affordable approach is proposed for the robust design of thick laminated composite structures. Our approach integrates the principles of the Robust Concept Exploration Method (RCEM) for designing complex engineering systems... Read More
Advanced Composite Materials
Viewed 299 times since Sun, Jan 19, 2014
Composite materials are becoming more important in the construction of aerospace structures. Aircraft parts made from composite materials, such as fairings, spoilers, and flight controls, were developed during the 1960s for their weight savings over... Read More