Search for dissertations about: "tensile deformation"

Showing result 1 - 5 of 145 swedish dissertations containing the words tensile deformation.

2. 1. 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

4. 2. Microstructure and deformation behaviour of ductile iron under tensile loading

   Author : Keivan Amiri Kasvayee; Anders E.W. Jarfors; Ehsan Ghassemali; Lennart Elmquist; Kenneth Hamberg; Jönköping University; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ductile iron; digital image correlation DIC ; in-situ tensile test; pit etching; Microscale deformation; micro-crack; finite elements analysis FEA ; cohesive elements;

   Abstract : The current thesis focuses on the deformation behaviour and strain distribution in the microstructure of ductile iron during tensile loading. Utilizing Digital Image Correlation (DIC) and in-situ tensile test under optical microscope, a method was developed to measure high resolution strain in microstructural constitutes. READ MORE

5. 3. On the deformation behavior and cracking of ductile iron; effect of microstructure

   Author : Keivan Amiri Kasvayee; Anders E.W. Jarfors; Jens Bergström; Jönköping University; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spherical graphite iron; component casting; high silicon ductile iron; digital image correlation DIC ; in-situ tensile testing; in-situ cyclic testing; DIC pattern generation; pit etching; micro-scale deformation; micro-crack; finite element analysis FEA ; focused ion beam FIB milling; segjärn; komponentgjutning; högkisellegerat segjärn; digital image correlation DIC ; insitu dragprovning; in-situ cyklisk provning; DIC-mönstergenerering; grop-etsning; mikroskalig deformation; mikrosprickor; finite element analys FEA ; fokuserad jonstråle FIB avverkning;

   Abstract : This thesis focuses on the effect of microstructural variation on the mechanical properties and deformation behavior of ductile iron. To research and determine these effects, two grades of ductile iron, (i) GJS-500-7 and (ii) high silicon GJS-500-14, were cast in a geometry containing several plates with different section thicknesses in order to produce microstructural variation. READ MORE

6. 4. Torque and Angle Controlled Tightening of Bolted Joints

   Author : Göran Toth; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; torque controlled tightening; deformation parameters; momentary elongation; deformation factor; torque; Bolted screwed joints; spring characteristic; Torx; torque and angle controlled tightening; hexalobular; final torque; snug torque; Taylor’s series expansions; preload; plastic deformation; permanent elongation; yield; friction diameter; plastic spring constant; clevis; turn-of-nut method; bearing surface pressure; twisting; Monte-Carlo simulations;

   Abstract : Reduced weight and fuel consumption, improved reliability and engine performance are the main requirements in the automotive industry of today. These requirements demand robust and optimized bolted joints, where a high amount of preload obtained by effective utilisation of the bolt is essential. READ MORE

7. 5. Generalised stacking fault energy and plastic deformation of austenitic stainless steels

   Author : Dávid Sándor Molnár; Levente Vitos; Guocai Chai; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stacking fault energy; stainless steel; plasticity; deformation; ab initio; Teknisk materialvetenskap; Materials Science and Engineering; Steel Forming and Surface Engineering;

   Abstract : Austenitic stainless steels are primarily known for their exceptional corrosion resistance. They have the face centred cubic (FCC) structure which is stabilised by adding nickel to the Fe-Cr alloy. The Fe-Cr-Ni system can be further extended by adding other elements such as Mn, Mo, N, C, etc. in order to improve the properties. READ MORE