Sökning: "stress laminated"

Visar resultat 1 - 5 av 30 uppsatser innehållade orden stress laminated.

1. 1. Strain Rate Characterization of Packaging Materials

   Master-uppsats, Lunds universitet/Industriell Produktion

   Författare :Zichun Wang; [2022]
   Nyckelord :Paperboard; Strain rate; yield stress; Technology and Engineering;

   Sammanfattning : This master thesis firstly introduced the basic knowledge of packaging materials through a literature survey focused on exploring the effect of strain-rate on mechanical properties of paperboard materials. By means of tensile tests and microscopic observation, the changes of mechanical properties such as yield strength, strain and Young's modulus of the two different paperboards used in laminated packaging materials for the two different package types Tetra Fino® Aspetic (TFA) and Tetra Brik® Aseptic (TBA) from Tetra Pak® were analyzed at strain rate ranging from 0. LÄS MER

3. 2. CHARACTERISATION OF CROSS LAMINATED TIMBER PROPERTIES

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Emil Nilsson; [2021]
   Nyckelord :CLT; cross laminated timber; in-plane loading; out-of-plane loading; beam; rolling shear modulus; experimental tests; FE-modelling; Technology and Engineering;

   Sammanfattning : This project concerns an analysis of a hitherto untested method for determining the modulus of elasticity (MoE) and shear modulus parallel to grain, as well as the rolling shear modulus of cross laminated timber (CLT) through 3-point bending tests. A review of analytical models and methods is included, followed by an evaluation of the effect of the annual ring orientation and shear stress distribution at shear loading of individual board cross-sections. LÄS MER

4. 3. Modeling of moisture-induced deformations and stresses in cross-laminated timber and timber-concrete composite floors

   Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Författare :Marcus Johansson; [2021]
   Nyckelord :abaqus; numerical modeling; moisture content; relative humidity; cross-laminated timber; timber-concrete composite; finite element; Technology and Engineering;

   Sammanfattning : Korslimmat trä är ett tämligen nytt material, bestående av korslagda lager av brädor. Produkten tillåter nya byggmetoder och kan ses som ett grönare alternativ till stål och betong. Dess uppbyggnad gör det mer robust och mindre beroende av träets varierande egenskaper för olika geometriska dimensioner. LÄS MER

5. 4. FE-Modelling of a Joint for Cross-Laminated Timber

   Master-uppsats, Karlstads universitet/Avdelningen för maskin- och materialteknik

   Författare :Linus Ekhagen; [2021]
   Nyckelord :cross-laminated timber; fe-modelling; continuum damage mechanics; fracture; korslimmat trä; fe modellering; skademekanik; brott;

   Sammanfattning : Woodbe Engineering AB is a freshly started company that has developed a new type of joint for cross-laminated timber (CLT). The joint does not include any metallic fasteners, which improves sustainability, the ergonomics for the workers and time efficiency. LÄS MER

7. 5. Numerical Assessment of Defects Effect on Boltless Composites Longitudinal Joints

   Master-uppsats, KTH/Lättkonstruktioner

   Författare :Mara Santaniello; [2020]
   Nyckelord :;

   Sammanfattning : The work presented in this thesis focuses on the numerical assessment of defects effect on potential boltless design for fuselage panels longitudinal joints, typically identified as High Load Transfer (HLT) configuration. Nowadays, the state-of-art joining technique for primary aircraft composite structures, such as fuselage barrels, is still mechanical fastening. LÄS MER