Search for dissertations about: "non-crimp fabrics"

Showing result 1 - 5 of 8 swedish dissertations containing the words non-crimp fabrics.

2. 1. Permeability of non-crimp fabrics : a computational fluid dynamics approach

   Author : Markus Nordlund; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

   Abstract : In the present market for manufacturing of high performance structural parts for various applications such as aerospace, transportation, infrastructure, marine, sports and recreation, low weight, high performance composites are preferable. Non-Crimp Fabrics (NCFs) are often used for such applications due to its high mechanical properties and often cost effective production. READ MORE

4. 2. Opportunities for Weight Reduction in Composite Marine Structures

   Author : Luis Felipe Sanchez Heres; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; material characterization; ultimate limit state; composites; lightweight design; non-crimp fabrics;

   Abstract : Composite marine structures are desirable for a variety of reasons. Compared to traditional steel structures, they enable the construction of vessels with lower fuel consumption, higher top speed, better stability, lower maintenance, higher cargo capacity, or combinations thereof. READ MORE

5. 3. Damage Tolerance of Impacted Composite Sandwich Structures

   Author : Moeen ud din Saeed Rajput; Malin Åkermo; Stefan Hallström; Magnus Burman; Christian Berggreen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite sandwich; cellular; polymer; material characterization; modulus; non-crimp fabric; low velocity impact; vibration; uncertainty analysis; drop-weight impact; fractography; barely visible impact damage; X-ray microtomography; compression-after-impact; bending-after-impact; high speed image processing; damage resistance; damage tolerance; Aerospace Engineering; Flyg- och rymdteknik;

   Abstract : This thesis deals with damage tolerance of impacted sandwich structures for load bearing applications. Composite sandwich structures find wide application as lightweight solutions in aerospace components, since weight reduction and less fuel emissions are primary concerns for aircraft manufactures. READ MORE

6. 4. Compressive failure of glass fibre NCF composites

   Author : Claes Isaksson; Linköpings universitet; []
   Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : Compressive failure of polymer matrix compos ites is very much controlled by material heterogeneity (e.g. fibre waviness and gaps) and out-of-plane loadings (e.g. READ MORE

7. 5. Physically Based Engineering Models for NCF Composites

   Author : Fredrik Edgren; Dan Zenkert; Michael WIsnom; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction engineering; Konstruktionsteknik;

   Abstract : Non-Crimp Fabrics - NCF – are increasingly being used as reinforcements in high performance composite materials. NCF offer the manufacturing advantages from textile preforms in combination with excellent mechanical performance. This study concerns the mechanical performance of NCF composites. READ MORE