Essays about: "Ductile damage"

Showing result 1 - 5 of 13 essays containing the words Ductile damage.

1. 1. Analysis of hot workability in 316L steel using ductile fracture criterions

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Viktor Strid; [2022]
   Keywords : Ductile fracture criterion; Finite Element Method; Hot working; 316L Stainless Steel; Fracture Modeling; Gleeble; Hot deformation;

   Abstract : The focus of this thesis is to develop a simulation model for predicting ductile fractures during hot working at Alleima. The main fracture mechanism in these conditions is ductile fracture by void coalescence. The ductile fractures are caused by the linking of voids that appear when there is large plastic deformation near second-phase particles. READ MORE

3. 2. Numerical simulations of shear reinforced concrete beams subjected to blast loads

   University essay from KTH/Betongbyggnad

   Author : Anton Frank; Andreas Fristedt; [2021]
   Keywords : Numerical simulations; shear reinforcement; blast loads; dynamic shear failure; Numeriska simuleringar; tvärkraftsarmering; luftstötvåg; dynamiskt skjuvbrott;

   Abstract : Historical accidents and experimental investigations have made apparent that blast loaded concrete members are prone to fail in brittle shear rather than a ductile flexure mode. Air blasts from accidental detonations or explosives may cause severe damage to buildings and infrastructure and it is of great importance that load carrying members can withstand the impulse that arise to avoid progressive collapses. READ MORE

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

   University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

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

   Abstract : 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. READ MORE

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

   University essay from KTH/Lättkonstruktioner

   Author : Mara Santaniello; [2020]
   Keywords : ;

   Abstract : 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. READ MORE

6. 5. Influence of nitrocarburization on the thermomechanical fatigue properties of ductile iron for exhaust components : Analysis and comparisons of TMF-properties

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Karl Larsson; [2019]
   Keywords : Thermo-mechanical fatigue; low cycle fatigue; thermal strain; ductile cast iron; nitrocarburizing;

   Abstract : New stricter environmental legislation requires lower emissions and fuel consumption of automotive engines. Therefore the fuel efficiency must be increased but this leads to higher loads in the engine. As for the exhaust system it is affected by higher thermomechanical loads. READ MORE