Books WIT Press High Performance and Optimum Design Structure and Materials
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High Performance and Optimum Design Structure and Materials pdf Download

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48.15 MB
W. P. de Wilde, S. Hernandez, C. A. Brebbia
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WIT Press
Addressing issues involving advanced types of structures, particularly those based on new concepts or new materials and their system design, contributions highlight the latest developments in design, optimization, manufacturing and experimentation. Also included are contributions on new software, numerical methods and various optimization techniques. Optimization problems of interest involve those related to size, shape and topology of structures and materials. Most high performance structures require the development of a generation of new materials, which can more easily resist a range of external stimuli or react in a non-conventional manner. Particular emphasis is placed on intelligent structures and materials as well as the application of computational methods for their modeling, control and management. Optimization techniques have much to offer to those involved in the design of new industrial products. The formulation of optimum design has evolved from the time it was purely an academic topic, able now to satisfy the requirements of real life prototypes. The development of new algorithms and the appearance of powerful commercial computer codes, with easy to use graphical interfaces, have created a fertile field for the incorporation of optimization in the design process in all engineering disciplines. This proceedings volume is the first from a new iteration of the High Performance Design of Structures and Materials and the Optimum Design of Structures conferences, which follows the success of a number of meetings that originated in 1989. Topics covered include: Composite materials & structures; Material characterization; Experiments and numerical analysis; Steel structures; High performance concretes; Natural fibre composites; Transformable structures; Lightweight structures; Timber structures; Environmentally friendly and sustainable structures; Emerging structural applications; Optimisation in civil engineering; Evolutionary methods in optimisation; Shape and topology optimisation; Aerospace structures; Structural optimisation; Biomechanics application; Material optimisation; Life cost optimisation; Intelligence structures and smart materials.
Contents Synergy between structural and architectural engineering: the point of view of the structural engineer Section 1: Material characterisation Microstructural and mechanical characterization of magnesium based alloy MA14 (ZK60 A): evolution under deformation and heat treatment; Identification of material constitutive law constants using machining tests: a response surface methodology based approach; Tracking heat-affected zone cracking susceptibility in standard and modified heat treated IN 738 superalloy welds; The properties of innovated mortars utilizing secondary raw material; Effect of specimen size on cancellous bone microstructural parameters; Prediction of roll separating force in a roll pass design of micro-alloyed steel rods; Physicochemical characterization of modified multicomponent binder mortar in relation to calcium hydroxide leaching; Selection of conductive yarns for knitting an electrical heating element; Physicochemical characterization of polymer composite cement systems Section 2: Experiments and numerical analyses Numerical experiments for inverse analysis of material properties and size in functionally graded materials using the Artificial Bee Colony algorithm; Dynamic responses of a steel composite bridge subjected to a moving high speed train load in comparison with a PSC box girder bridge; Process development for 3D laser lithography; Effect of mesostructure on strain rate dependent behaviour in high strength steel sheets; The mitigation of the progressive collapse of a 9-storey structure incorporating United States Department of Defence guidelines Section 3: Composite materials and structures The study of a CVT belt using the composite material of carbon fiber-reinforced thermoplastic resin; The effect of the amount of process control agent on the properties of Cu25W composite powder; The high temperature resistance of a para-aramid fibre-reinforced concrete composite; Reinforcing concrete shells with cement composite stay-in-place formwork: numerical analysis of a case study; Crashworthiness response of honeycomb metallic-GFRP energy absorption devices Section 4: Green composites (Special session organised by H. Takagi & T. Katayama) Heat transfer analyses of natural fibre composites; Development of the fabrication process of carbon nanotube reinforced polylactide (PLA) nanofiber and evaluation of its mechanical properties; Proximity heating of CFRTP molding dies by using high-frequency direct current Section 5: Composites for automotive applications (Special session organised by K. Takemura & K. Tanaka) FEM analysis of the temperature distribution of CFRTP pipe mold with direct resistance heating; CFRTP molding method of the three-dimensional shape by using direct resistance heating to carbon fiber; Effect of the molecular weight of polycarbonate on the impact resistance of continuous carbon fiber reinforced polycarbonate composites; Evaluation of the interfacial and interlaminar shear strength of carbon fiber reinforced polycarbonate made by a unidirectional sheet; The effect of crystallinity on the mechanical properties of plain woven carbon reinforced composites using polypropylene; High-speed compression molding of continuous carbon fiber reinforced polypropylene; Formability evaluation of carbon fiber NCF by a non-contact 3D strain measurement system and the effects of blank folder force on its formability; The mode I interlaminar fracture toughness of carbon fiber/epoxy resin composite with freezing after water absorption Section 6: Structural optimization Optimization of steel penstock in a bored tunnel; Sustainable design using multiobjective optimization of high-strength concrete I-beams; Seismic shakedown design of frames based on a probabilistic approach; Performance of surrogate models in reliability-based design optimization; Diagonalization strategies in search of structural optimization; Some applications of reliability based design optimization in engineering structures Section 7: Optimization problems The application of Differential Evolution to HVAC optimization; Atypical design optimisation of structures: case studies; Predictive service life analysis of characteristic applications of zeolite concrete in building structures; Modeling the thermal performance of passive roofing systems in a tropical climate Section 8: Steel structures Compression characteristics of spheroidal graphite cast iron pipe members; Optimal design of through-truss steel bridges Section 9: Timber structures Behaviour of creep of timber beams under natural environmental conditions; Insulating timber-framed walls of historical buildings using modern technologies and materials Section 10: Corrosion problems Accelerated corrosion tests of waste-gated turbocharger's adjustable and fixed end links; Impact of the soil resistivity on IR drop when applying a cathodic protection system with galvanic anodes on PCCP Section 11: Surface modification Effect of acid pretreatment of the plated substrate on the hardness of the carbon plating film formed by using a molten salt electrochemical process; Improving the performance of magnesium alloys for automotive applications; The microstructure and wear behaviour of sintered Astaloy 85Mo; Microstructure and properties of NiCrBSiC overlay coatings deposited by the plasma scanning process; Effect of electric discharge machining of die steel DIN 1.2714 and DIN 1.2343 on surface characteristics and performance measures; Bio-compatible polymer coatings using low temperature, atmospheric pressure plasma; Polyaniline coated curaua fibres in polyamide-6 composites: the effect of fibre surface modification on the crystallographic properties Section 12: Innovative technologies Insulation of flexible light emitting display for smart clothing; Estimation of soil pore-water pressure variations using a thin plate spline basis function Section 13: Heritage constructions Advancing Iznik tiles to the 21st century by applying nano structured materials; Reduction in permeability of concrete, mortar and plasters by a chemical which retards water percolation and salt transfer Section 14: Sustainable solutions The effectiveness of sustainable floating structures in the Gulf Region (Middle East); Effect of silica aerogel on the thermal conductivity of cement paste for the construction of concrete buildings in sustainable cities
Structural engineering, Building construction & materials