Search for dissertations about: "AHSS"

Showing result 1 - 5 of 8 swedish dissertations containing the word AHSS.

2. 1. Predicting Sheared Edge Characteristics of High Strength Steels

   Author : Olle Sandin; Daniel Casellas; Pär Jonsén; Jörgen Kajberg; Rickard Östlund; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

   Abstract : An efficient way of reducing CO2 emissions from the transportation sector is to reduce the vehicle weights, i.e. lightweighting. A common strategy for lightweighting of vehicles is to replace the steels used to build structural parts of the vehicle, usually manufactured by metallic sheets, with stronger, advanced high strength steel (AHSS) grades. READ MORE

4. 2. Microstructure and mechanical properties of a 5 wt.% Cr cold work tool steel : Influence of heat treatment procedure

   Author : Arbab Rehan; Lars-Erik Svensson; Leif Karlsson; Högskolan Väst; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cold work tool steel; Heat treatment; Microstructural characterisation; Mechanical properties; Retained austenite; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Abstract : The demand for Advanced High Strength Steel (AHSS) in the automotive industry is increasing day by day. It is mainly motivated by the fact that AHSS can be used as thin sheets while having high strengths. READ MORE

5. 3. Towards energy-based fracture modelling for crashworthiness applications

   Author : Simon Jonsson; Jörgen Kajberg; Stefan Golling; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

   Abstract : The automotive industry is currently adapting to progessively more stringent emission and safety regulations imposed by governmental agencies. This introduces significant design difficulties due to the conflicting nature of passenger safety in automotive manufacturing, namely that increased crashworthiness generally leads to heavier vehicles, which in turn leads to more severe crashes. READ MORE

6. 4. Comprehensive non-target screening to find and identify new biomagnifying organic contaminants in Baltic Sea top consumers

   Author : Andriy Rebryk; Peter Haglund; Christine Gallampois; Mats Tysklind; Jacob de Boer; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Baltic Sea; persistent organic pollutants; contaminants of emerging concern; non-target screening; GC-MS; biomagnification; temporal trends; Analytical Chemistry; analytisk kemi; environmental science; miljövetenskap;

   Abstract : The development of industrial processes in the 19th and 20th centuries, in particular oil refining, resulted in a huge discovery and subsequent large-scale production of a variety of chemicals. These useful chemicals supposedly made the everyday lives of people easier and better by, for instance, controlling the spread of diseases such as malaria, through the use of DDT and other organochlorine pesticides (OCPs). READ MORE

7. 5. Modelling and characterisation of fracture properties of advanced high strength steels

   Author : Rickard Östlund; Greger Bergman; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics; Centrumbildning - Centrum för högpresterande stål CHS ; Centre - Centre for High Performance Steel CHS ;

   Abstract : Growing demands for passenger safety, vehicle performance and fueleconomy is a continuous driving force for the increase in use of advancedhigh strength steels (AHSS) in the automotive industry. Thesesteels area characterised by improved formability and crash worthinesscompared to conventional steel grades. READ MORE