By Ernest Hinton BSc, MSc, PhD, SDc, CEng, MIStructE, MBCS, Johann Sienz BEng, DipI-Ing (FH), MSc, PhD, Dr-Phil (GB), CEng, MIMechE, Cmath, MIMA, Mustafa Özakça BSc, MSc, PhD (auth.)
Shell-type buildings are available virtually all over the place. they seem in typical types but additionally as man-made, load-bearing elements in diversified engineering structures. Mankind has struggled to duplicate nature’s optimization of such buildings yet utilizing glossy computational instruments it really is now attainable to examine, layout and optimise them systematically. research and Optimization of Prismatic and Axisymmetric Shell buildings gains: finished assurance of the historical past thought of shell constructions; improvement and implementation of trustworthy, inventive and effective computational instruments for static and free-vibration research and structural optimization of variable-thickness shells and folded-plate buildings; built-in computer-aided curve and floor modelling instruments and automated mesh new release, structural research sensitivity research and mathematical programming tools; well-documented, downloadable Fortran software program for those thoughts utilizing finite aspect and finite strip simulations that are without difficulty tailored through the reader for the answer of sensible difficulties or to be used inside of a educating or study surroundings. Written by way of top specialists in finite point and finite strip equipment, research and Optimization of Prismatic and Axisymmetric Shell buildings can be of significant curiosity to researchers in structural mechanics and in automobile, aerospace and civil engineering in addition to to designers from all fields utilizing shell buildings for his or her strength-per-unit-mass advantages.
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Additional resources for Analysis and Optimization of Prismatic and Axisymmetric Shell Structures: Theory, Practice and Software
Secondly, shells can be found as man- made, load-carr ying components of many types of engineering system in the aerospace, auto mot ive, nuclear marine, petr ochemical, biomedical and const ruct ion industries. Here, examples include flight vehicles, car bodies, nuclear reactor vessels, hulls of ships and deep submersibles, refinery and biomedical paraphernalia, roofs for industrial buildings, entertainment auditoria and sports complexes. While nature, through adaptivity in the form of natural selection , has over millions of years improved th e various struct ura l attribute s of th e first class of structures, mankind has struggled over a much shorter tim e span through economic competition, aest het ic sensibility and tri al-and-error to "opt imize" the second class of shells by applying ingenuity, artist ic instinct and sheer inventiveness.
However, such representations depend on the coordinate system used. e. in whatever coordinate system we represent the cross-section of the shell, the geometric shape should remain unchanged . The advancements made in CAGD [1-4], which basically deals with computer-based representation, analysis , and design of shapes, have led to the development of parametric curves that are independent of a particular choice of coordinate system . Such a parametric curve representation provides a mathematical definition that facilitates the evaluation and manipulation of points on the curve.
The class of prismatic folded plat es and shells dealt with in this book includes right and curved planform st ructures, such as plates of uniform and varying th ickness, plates on elastic foundations, box-girder bri dges and cylindrical shells. 12 1. 5 Computer-aided Shape Definition The shapes of shells encountered in practice are so arbitrary and complex that computational tools for their analysis and design should include robust and versatile methods for the geometry definition. In this book, parametric representations of curves and surfaces are used to represent the shell geometry [24,25].
Analysis and Optimization of Prismatic and Axisymmetric Shell Structures: Theory, Practice and Software by Ernest Hinton BSc, MSc, PhD, SDc, CEng, MIStructE, MBCS, Johann Sienz BEng, DipI-Ing (FH), MSc, PhD, Dr-Phil (GB), CEng, MIMechE, Cmath, MIMA, Mustafa Özakça BSc, MSc, PhD (auth.)