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Showing result 1 - 5 of 734 swedish dissertations matching the above criteria.

2. 1. Tensile fracture of ice : test methods and fracture mechanics analysis

   Author : Lars Stehn; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

   Abstract : This thesis is concerned with several aspects of fracture of both brackish (low salinity) sea ice and freshwater ice. The tests and analyses are confined to tensile, or in fracture mechanics language, Mode I, fracture. READ MORE

4. 2. 3D printing of polymers onto textiles : An innovative approach to develop functional textiles

   Author : Prisca Eutionnat-Diffo; Barbara Simončič; Högskolan i Borås; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D printing; Fused deposition modeling; Adhesion; Textile Functionalization; Statistical Modeling; Non conductive and conductive polymer; Multi-walled carbon nanotube; Carbon Black; Deformation; Tensile; Abrasion; Biphasic polymeric bends; 3D打印，熔融沉积成型，粘附性，纺织品功能性，数据建模，导电与非导电高聚物，多壁碳纳米管，炭黑，变形性能，拉伸性能，摩擦性能，二相高分子共混物; Impression 3D; Modélisation par dépôt de polymère fondu; Adhésion; Fonctionnalisation textile; Modélisation statistique; Polymère non conducteur et conducteur; Nanotube de carbone multi-parois; Noir de carbone; Déformation; Traction; Abrasion; Mélanges de polymères biphasiques; 3D-utskrift; smält deponeringsmodellering; vidhäftning; textilfunktionalisering; statistisk modellering; icke ledande och ledande polymer; flerväggigt kolnanorör; kolsvart; deformation; draghållfasthet; nötning; bifasisk polymerböjning; Textil och mode generell ; Textiles and Fashion General ;

   Abstract : This thesis aims at characterizing tridimensional (3D) printed polymers onto PET textile materials via fused deposition modeling (FDM) that uses both non-conductive and conductive polymers, optimizing their mechanical and electrical properties through statistical modeling and enhancing them with pre and post-treatments and the development of polymer blends. This research work supports the development of technical textiles through 3D printing that may have functionalities. READ MORE

5. 3. Effects of Cell Wall Structure on Tensile Properties of Hardwood : Effect of down-regulation of lignin on mechanical performance of transgenic hybrid aspen. Effect of chemical degradation on mechanical performance of archaeological oak from the Vasa ship

   Author : Ingela Bjurhager; Lars Berglund; Ulrike Wegst; KTH; []
   Keywords : tensile strength; transgenic hybrid aspen; lignin down-regulation; the Vasa ship; chemical degradation; longitudinell draghållfasthet; transgen hybridasp; ligninnedreglering; Vasaskeppet; kemisk nedbrytning; TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : Wood is a complex material and the mechanical properties are influencedby a number of structural parameters. The objective of this study has been toinvestigate the relationship between the structure and the mechanical propertiesof hardwood. Two levels were of special interest, viz. READ MORE

6. 4. Microstructure and mechanical properties of Ti-6Al-2Sn-4Zr-2Mo and Ti-6Al-4V : influence of H, O and B

   Author : Raghuveer Gaddam; Barbara Shollock; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Titanium alloys; Hydrogen; Oxygen; Boron; Tensile; Compression; Fatigue; Metallography; Fractography; Materialteknik; Engineering Materials;

   Abstract : Titanium and its alloys are used in a wide range of applications from aerospace, marine, biomedical implants and consumer goods, due to their superior specific strength, excellent corrosion resistance, and biocompatibility. In aerospace applications, these alloys are predominately used as components in the aero/rocket engines because of their high strength-to-density ratio compared to other metallic materials. READ MORE

7. 5. Development and characterisation of bast and basalt fibre hybrid polymer composites for automotive applications

   Author : Anjum Saleem; Roberts Joffe; Högskolan i Borås; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flax; Hemp; Kenaf; Basalt fibres; Polypropylene; Acrylic based polyester resins; Flexural; Tensile; Impact strength; Resource Recovery; Resursåtervinning;

   Abstract : Natural fibres such as kenaf, hemp, and flax, also known as bast fibres, offer several benefits such as low density, low cost, carbon dioxide neutrality, sustainability and renewability. In Europe, their composites are used intensively by almost all car manufacturers, mostly in interior applications. READ MORE