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High speed sintering is a novel additive manufacturing technique consisting in sintering powder materials through infrared radiation instead of using an expensive laser technique like in its predecessor, Selective Laser Sintering; which makes it less expensive and more efficient in terms of manufacturing time.
In this master’s thesis, first results regarding the printing of multi-material parts with a test bench printer prototype based on High Speed Sintering technique and manufactured within the scope of this project for that purpose, are presented. Nowadays the additive manufacturing market focus mainly in one single type of material: Nylon 12; leaving the market in need of new materials for the actual demanding technology. A first research into potential polymer powders to be used in this process as well as a trade-off of their possible combination is carried out. Finally multi-material parts of Polyamide 12 and Thermoplastic Polyurethane are obtained and characterized through various tests to know its properties and the behaviour across their interface of this new functionally graded material. The results showed that the multi-material part tensile strength stays at the same value or slightly below the value of the material with less tensile strength forming the part. The interface between the materials is strong and these materials show a good sintering level for the test bench parameters selected.

Additive Manufacturing --- High Speed Sintering --- New Materials --- Polymer Powders --- Multi-Material Parts --- Functionally Graded Material --- Ingénierie, informatique & technologie > Ingénierie aérospatiale

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The mechanics of fracture and fatigue have produced a huge body of research work in relation to applications to metal materials and structures. However, a variety of non-metallic materials (e.g., concrete and cementitious composites, rocks, glass, ceramics, bituminous mixtures, composites, polymers, rubber and soft matter, bones and biological materials, and advanced and multifunctional materials) have received relatively less attention, despite their attractiveness for a large spectrum of applications related to the components and structures of diverse engineering branches, applied sciences and architecture, and to the load-carrying systems of biological organisms. This book covers the broad topic of structural integrity of non-metallic materials, considering the modelling, assessment, and reliability of structural elements of any scale. Original contributions from engineers, mechanical materials scientists, computer scientists, physicists, chemists, and mathematicians are presented, applying both experimental and theoretical approaches.

History of engineering & technology --- Ethylene-propylene diene monomer rubber EPDM --- grommet --- physical properties --- optimization of shape design --- reliability of rocks --- fatigue load --- strain energy --- red sandstone --- distribution of strain energy --- indices --- multi-scale simulation --- fatigue loading --- road bridge decks --- stagnant water --- fracture toughness --- blast furnace slag --- particle size --- compressive strength --- concrete --- concrete cracking --- crack patterns --- carbon fiber-reinforced polymers—CFRP --- RC strengthening (in bending and shear) --- RC beams --- soft materials --- polymers --- strain rate --- defect tolerance --- digital image correlation --- stress concentrators --- notch blunting --- lightning strike --- composite reinforced panel --- blow-off impulse --- electric-thermal coupling --- boundary effect --- size effect --- tensile strength --- physical modelling test --- rock structure --- fracture --- deformation --- mining --- neutral axis --- self-healing --- successive strain gauge --- flexural test --- bridge decks --- pseudo-cracking method --- data assimilation --- triaxial compression test --- sandstone --- rock mechanics --- rock fracture --- energy evolution --- rock-like material --- crack propagation --- discrete element --- strain rate tensor --- velocity field --- jointed rock --- uniaxial tension loading --- numerical analysis --- discrete element method --- strata structural behavior --- numerical simulation --- tension weakening --- fractures --- goaf consolidation --- fatigue life --- modified asphalt mixture --- four-point bending beam fatigue test --- two-point trapezoidal beam fatigue test --- overlay tester --- embedment --- shale rock --- proppant pack --- fracture width --- fly ash --- fineness --- fracture energy --- critical stress intensity factor --- assessment --- bridge evaluation --- compressive membrane action --- concrete bridges --- fatigue --- fatigue assessment --- live loads --- prestressed concrete --- punching shear --- scale model --- CFRP --- Low Velocity Impacts --- Cohesive Zone Model (CZM) --- Finite Element Analysis (FEA) --- VUMAT --- inter-laminar damage --- intra-laminar damage --- chemical grouting --- flowing water --- water plugging rate --- joint roughness coefficient --- damage model --- mode-II microcracks --- thermodynamics --- reinforced concrete beam --- impact and quasi-static loading --- retrofitting --- mineral grain shape --- particle flow code --- uniaxial compression simulation --- rock mechanical property --- mesostructure --- finite element analysis --- cohesive zone model --- high performance concrete --- fibre-reinforced high performance concrete --- compressive stress --- compressive modulus of elasticity --- maximum compressive strain --- tension --- pressure-tension apparatus --- nondestructive testing --- ultrasonic pulse velocity --- ABAQUS FEA --- high-temperature wedge splitting test --- fracture parameters --- reducing condition --- carbon-containing refractories --- strain-softening --- failure probability --- diamond composite --- material failure characteristics --- reliability --- rock cutting picks --- civil engineering --- fiber-reinforced composite laminate --- multi-directional laminate --- delamination --- elastic interface --- energy release rate --- mixed-mode fracture --- enhanced PG-NEM --- functionally graded material (FGM) --- stress intensity factor (SIF) --- modified interaction integral --- metallic glasses --- shear bands --- mechanical properties --- fracture mechanism --- small wind turbine --- stall regulation --- pitch regulation --- aeroelastic simulation --- n/a --- Fatigue --- Fracture mechanics --- Structural integrity --- Polymers --- Composites --- Ceramics --- Concrete --- Rock --- Soft matter --- Advanced materials. --- carbon fiber-reinforced polymers-CFRP

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The mechanics of fracture and fatigue have produced a huge body of research work in relation to applications to metal materials and structures. However, a variety of non-metallic materials (e.g., concrete and cementitious composites, rocks, glass, ceramics, bituminous mixtures, composites, polymers, rubber and soft matter, bones and biological materials, and advanced and multifunctional materials) have received relatively less attention, despite their attractiveness for a large spectrum of applications related to the components and structures of diverse engineering branches, applied sciences and architecture, and to the load-carrying systems of biological organisms. This book covers the broad topic of structural integrity of non-metallic materials, considering the modelling, assessment, and reliability of structural elements of any scale. Original contributions from engineers, mechanical materials scientists, computer scientists, physicists, chemists, and mathematicians are presented, applying both experimental and theoretical approaches.

Ethylene-propylene diene monomer rubber EPDM --- grommet --- physical properties --- optimization of shape design --- reliability of rocks --- fatigue load --- strain energy --- red sandstone --- distribution of strain energy --- indices --- multi-scale simulation --- fatigue loading --- road bridge decks --- stagnant water --- fracture toughness --- blast furnace slag --- particle size --- compressive strength --- concrete --- concrete cracking --- crack patterns --- carbon fiber-reinforced polymers—CFRP --- RC strengthening (in bending and shear) --- RC beams --- soft materials --- polymers --- strain rate --- defect tolerance --- digital image correlation --- stress concentrators --- notch blunting --- lightning strike --- composite reinforced panel --- blow-off impulse --- electric-thermal coupling --- boundary effect --- size effect --- tensile strength --- physical modelling test --- rock structure --- fracture --- deformation --- mining --- neutral axis --- self-healing --- successive strain gauge --- flexural test --- bridge decks --- pseudo-cracking method --- data assimilation --- triaxial compression test --- sandstone --- rock mechanics --- rock fracture --- energy evolution --- rock-like material --- crack propagation --- discrete element --- strain rate tensor --- velocity field --- jointed rock --- uniaxial tension loading --- numerical analysis --- discrete element method --- strata structural behavior --- numerical simulation --- tension weakening --- fractures --- goaf consolidation --- fatigue life --- modified asphalt mixture --- four-point bending beam fatigue test --- two-point trapezoidal beam fatigue test --- overlay tester --- embedment --- shale rock --- proppant pack --- fracture width --- fly ash --- fineness --- fracture energy --- critical stress intensity factor --- assessment --- bridge evaluation --- compressive membrane action --- concrete bridges --- fatigue --- fatigue assessment --- live loads --- prestressed concrete --- punching shear --- scale model --- CFRP --- Low Velocity Impacts --- Cohesive Zone Model (CZM) --- Finite Element Analysis (FEA) --- VUMAT --- inter-laminar damage --- intra-laminar damage --- chemical grouting --- flowing water --- water plugging rate --- joint roughness coefficient --- damage model --- mode-II microcracks --- thermodynamics --- reinforced concrete beam --- impact and quasi-static loading --- retrofitting --- mineral grain shape --- particle flow code --- uniaxial compression simulation --- rock mechanical property --- mesostructure --- finite element analysis --- cohesive zone model --- high performance concrete --- fibre-reinforced high performance concrete --- compressive stress --- compressive modulus of elasticity --- maximum compressive strain --- tension --- pressure-tension apparatus --- nondestructive testing --- ultrasonic pulse velocity --- ABAQUS FEA --- high-temperature wedge splitting test --- fracture parameters --- reducing condition --- carbon-containing refractories --- strain-softening --- failure probability --- diamond composite --- material failure characteristics --- reliability --- rock cutting picks --- civil engineering --- fiber-reinforced composite laminate --- multi-directional laminate --- delamination --- elastic interface --- energy release rate --- mixed-mode fracture --- enhanced PG-NEM --- functionally graded material (FGM) --- stress intensity factor (SIF) --- modified interaction integral --- metallic glasses --- shear bands --- mechanical properties --- fracture mechanism --- small wind turbine --- stall regulation --- pitch regulation --- aeroelastic simulation --- n/a --- Fatigue --- Fracture mechanics --- Structural integrity --- Polymers --- Composites --- Ceramics --- Concrete --- Rock --- Soft matter --- Advanced materials. --- carbon fiber-reinforced polymers-CFRP

Choose an application

• Reference Manager
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The mechanics of fracture and fatigue have produced a huge body of research work in relation to applications to metal materials and structures. However, a variety of non-metallic materials (e.g., concrete and cementitious composites, rocks, glass, ceramics, bituminous mixtures, composites, polymers, rubber and soft matter, bones and biological materials, and advanced and multifunctional materials) have received relatively less attention, despite their attractiveness for a large spectrum of applications related to the components and structures of diverse engineering branches, applied sciences and architecture, and to the load-carrying systems of biological organisms. This book covers the broad topic of structural integrity of non-metallic materials, considering the modelling, assessment, and reliability of structural elements of any scale. Original contributions from engineers, mechanical materials scientists, computer scientists, physicists, chemists, and mathematicians are presented, applying both experimental and theoretical approaches.

History of engineering & technology --- Ethylene-propylene diene monomer rubber EPDM --- grommet --- physical properties --- optimization of shape design --- reliability of rocks --- fatigue load --- strain energy --- red sandstone --- distribution of strain energy --- indices --- multi-scale simulation --- fatigue loading --- road bridge decks --- stagnant water --- fracture toughness --- blast furnace slag --- particle size --- compressive strength --- concrete --- concrete cracking --- crack patterns --- carbon fiber-reinforced polymers-CFRP --- RC strengthening (in bending and shear) --- RC beams --- soft materials --- polymers --- strain rate --- defect tolerance --- digital image correlation --- stress concentrators --- notch blunting --- lightning strike --- composite reinforced panel --- blow-off impulse --- electric-thermal coupling --- boundary effect --- size effect --- tensile strength --- physical modelling test --- rock structure --- fracture --- deformation --- mining --- neutral axis --- self-healing --- successive strain gauge --- flexural test --- bridge decks --- pseudo-cracking method --- data assimilation --- triaxial compression test --- sandstone --- rock mechanics --- rock fracture --- energy evolution --- rock-like material --- crack propagation --- discrete element --- strain rate tensor --- velocity field --- jointed rock --- uniaxial tension loading --- numerical analysis --- discrete element method --- strata structural behavior --- numerical simulation --- tension weakening --- fractures --- goaf consolidation --- fatigue life --- modified asphalt mixture --- four-point bending beam fatigue test --- two-point trapezoidal beam fatigue test --- overlay tester --- embedment --- shale rock --- proppant pack --- fracture width --- fly ash --- fineness --- fracture energy --- critical stress intensity factor --- assessment --- bridge evaluation --- compressive membrane action --- concrete bridges --- fatigue --- fatigue assessment --- live loads --- prestressed concrete --- punching shear --- scale model --- CFRP --- Low Velocity Impacts --- Cohesive Zone Model (CZM) --- Finite Element Analysis (FEA) --- VUMAT --- inter-laminar damage --- intra-laminar damage --- chemical grouting --- flowing water --- water plugging rate --- joint roughness coefficient --- damage model --- mode-II microcracks --- thermodynamics --- reinforced concrete beam --- impact and quasi-static loading --- retrofitting --- mineral grain shape --- particle flow code --- uniaxial compression simulation --- rock mechanical property --- mesostructure --- finite element analysis --- cohesive zone model --- high performance concrete --- fibre-reinforced high performance concrete --- compressive stress --- compressive modulus of elasticity --- maximum compressive strain --- tension --- pressure-tension apparatus --- nondestructive testing --- ultrasonic pulse velocity --- ABAQUS FEA --- high-temperature wedge splitting test --- fracture parameters --- reducing condition --- carbon-containing refractories --- strain-softening --- failure probability --- diamond composite --- material failure characteristics --- reliability --- rock cutting picks --- civil engineering --- fiber-reinforced composite laminate --- multi-directional laminate --- delamination --- elastic interface --- energy release rate --- mixed-mode fracture --- enhanced PG-NEM --- functionally graded material (FGM) --- stress intensity factor (SIF) --- modified interaction integral --- metallic glasses --- shear bands --- mechanical properties --- fracture mechanism --- small wind turbine --- stall regulation --- pitch regulation --- aeroelastic simulation --- Fatigue --- Fracture mechanics --- Structural integrity --- Polymers --- Composites --- Ceramics --- Concrete --- Rock --- Soft matter --- Advanced materials.