Search for dissertations about: "lightweight"

Showing result 11 - 15 of 259 swedish dissertations containing the word lightweight.

2. 11. Upgrading Cellulose Networks: Conquering Limitations in Fiber Foams

   Author : Eliott Jean Quentin Orzan; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cross-linking; pore structure; cellular solid; lightweight; porous network; cellulose; flame-retardancy; fibers;

   Abstract : The battle to create structural materials with low environmental impact demands the investiture of two champions: porous structures and cellulose substrates. The dominant solutions when constructing strong lightweight materials are plastic and metallic foams, while currently, cellulose fiber foams suffer from challenges which hamper their development. READ MORE

4. 12. Wood-based Materials for Lithium-ion Batteries

   Author : Lu Huiran; Göran Lindbergh; Ann Cornell; Claudio Gerbaldi; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; binder; lignin; TEMPO-oxidized cellulose nanofibrils; flexible paper electrodes; lightweight; eco-friendly; Li-ion batteries; Chemical Engineering; Kemiteknik;

   Abstract : Lithium-ion batteries (LIB) have become very important recently as power sources for portable electronics and electric vehicles. Today non-renewable petroleum-based polymers are used as binders in state-of-the-art LIB. Therefore, it is essential to investigate alternative binders, which are environmentally friendly and inexpensive. READ MORE

5. 13. Static and fatigue analyses of welded steel structures : some aspects towards lightweight design

   Author : Mansoor Khurshid; Zuheir Barsoum; Lars-Erik Lindgren; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fatigue strength; welded joints; static strength; high strength steel; Farkostteknik; Vehicle and Maritime Engineering; Aerospace Engineering; Flyg- och rymdteknik;

   Abstract : The objectives of this thesis comprise of overcoming the challenges in designing lightweight welded structures such as material selection, choice of fatigue design methods, and increased performance by using improvement techniques. Material selection of welded joints is dependent on the filler and base material strengths. READ MORE

6. 14. Lightweight verification of functional programs

   Author : Nicholas Smallbone; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : We have built several tools to help with testing and verifying functional programs. All three tools are based on QuickCheck properties. Our goal is to allow programmers to do more with QuickCheck properties than just test them. READ MORE

7. 15. Multi-Functional Composite Design Concepts for Rail Vehicle Car Bodies

   Author : David Wennberg; Sebastian Stichel; Per Wennhage; Thilo Bein; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Car body; Composite; Finite element; Lightweight; Multi-discipline; Multi-functional; Optimisation; Rail Vehicles; Sandwich Panels;

   Abstract : Structures and material combinations, tailored for multiple purposes, are within the reach of vehicle manufacturers. Besides reducing the environmental impact of the transportation sector these multi-functional structures can reduce costs, such as development, manufacturing and maintenance, and at the same time offer improved comfort to the passengers. READ MORE