Sökning: "Micromechanical characterization"

Hittade 5 uppsatser innehållade orden Micromechanical characterization.

1. 1. Micromechanical Characterization of Thin Paper Materials

   Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Lunds Tekniska Högskola

   Författare :Linus Bengtsson; [2023]
   Nyckelord :Micromechanical characterization; SEM; In situ tensile testing; Paper deformation; Fiber orientation; Paper mechanics; Technology and Engineering;

   Sammanfattning : Hur ser framtidens hållbara förpackning ut och vad är den tillverkad av? För att besvara denna fråga blir mikromekanisk karakterisering av material en viktig parameter att utforska och förstå. I synnerhet är mikromekaniken hos tunna pappersmaterial intressant då materialet har användningspotential i flera förpackningsapplikationer. LÄS MER

3. 2. Mechanical characterization of DuraPulp by means of micromechanical modelling

   Magister-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY); Linnéuniversitetet/Institutionen för maskinteknik (MT)

   Författare :Mustafa Al-Darwash; Emanuel Nuss; [2015]
   Nyckelord :Natural fiber composites NFC ; Polylactic acid PLA ; Micromechanical modeling; Modulus of Elasticity MOE ; Shear modulus; Poisson’s ratio;

   Sammanfattning : Södra DuraPulp is a relatively new eco-composite, made from natural wood fibers and polylactic acid (PLA), which comes from corn starch. Until now, there are only few applications for DuraPulp, mainly in the area of design. To find new fields of application, more knowledge about its mechanical material properties are of great interest. LÄS MER

4. 3. Micromechanical Numeric Investigation of Fiber Bonds in 3D Network Structures.

   Master-uppsats, KTH/Hållfasthetslära (Avd.)

   Författare :YAĞIZ AZİZOĞLU; [2014]
   Nyckelord :Finite element; strength additive; 3D model; fiber network model; contact stiffness; paper strength; AFM; fiber adhesion.;

   Sammanfattning : In manufacturing of paper and paperboard, optimized fiber usage has crucial importance for process efficiency and profitability. Dry strength of paper is one of the important quality criteria, which can be improved by adding dry strength additive that affect fiber to fiber bonding. LÄS MER

5. 4. Micromechanical Investigation of the Effect of Refining on the Mechanical Properties of the Middle Ply of a Paperboard.

   Magister-uppsats, KTH/Hållfasthetslära (Inst.)

   Författare :Sofia Sandin; [2014]
   Nyckelord :Keywords: Refining; fibrillation; fines; SEM; 3D fiber network model; FE simulations; Malning; fibrillering; fines; SEM; 3D fibernätverksmodell; FE simuleringar;

   Sammanfattning : Optimized fiber utilization is crucial to the process efficiency and profitability in paper and board making. The fibers can be developed in a refining process in order to reach a desired quality level. LÄS MER

7. 5. Internal structure characterization of asphalt concrete using x-ray computed tomography.

   Master-uppsats, KTH/Väg- och banteknik

   Författare :Ibrahim Onifade; [2013]
   Nyckelord :X-ray computed tomography; digital image processing; finite element;

   Sammanfattning : This study is carried out to develop the workflow from image acquisition to numerical simulation for asphalt concrete (AC) microstructure. High resolution computed tomography (CT) images are acquired and the image quality is improved using digital image processing (DIP). LÄS MER