Essays about: "plastic deformation"

Showing result 21 - 25 of 86 essays containing the words plastic deformation.

1. 21. Analysis of a Plate of High Strength Steel: Simulation of Impact and Determination of Residual Stresses

   University essay from KTH/Hållfasthetslära

   Author : Martin Hviid; [2021]
   Keywords : ;

   Abstract : In this study a finite element model has been created in ABAQUS/Standard in order to replicate impact tests performed by SSAB and to determine residual stresses in a plate. Uniaxial tensile tests have been done in order to determine the plastic behaviour of a high strength steel from the manufacturer SSAB and to determine whether the material can be assumed to be isotropic. READ MORE

3. 22. Material characterization of long-term stress relaxation in a semi-crystalline polymer material : An experimental and numerical study

   University essay from Blekinge Tekniska Högskola

   Author : Jakob Görtz; [2021]
   Keywords : Abaqus; MCalibration; PRF; HDPE; Stress relaxation; Long-term testing; Theoretical expressions; Material calibration;

   Abstract : As the plastic and packaging industry is looking to increase the longevity of plastic products as well as recycling used material, there is a need to understand how material properties respond and change during long periods of mechanical loading. Physical tensile experiments on thin plant-based High-Density Polyethylene (HDPE) are conducted with the intent of capturing relaxation behavior from a short-term (1-3 hours) and long-term (29-56 days) perspective. READ MORE

4. 23. Topology optimization : A comparison between the SIMP and BESO methods using open-source software.

   University essay from Uppsala universitet/Tillämpad mekanik

   Author : Christian Hagnell; Kiavosh Saidi Mosanen; [2021]
   Keywords : Strukturoptimering; Solid Isotropic Material with Penalization; SIMP; Bidirectional Evolutionary Structural Optimization; BESO; statiskt obestämd balk; 3D utskrift; bärande balk; öppen källkod; FreeCAD; Python;

   Abstract : Structural optimization is a useful tool for engineers and designers in construction technology as well asvehicle and mechanical engineering. With structure optimization, a computer can, with the help of finiteelement analysis, calculate the smallest possible amount of material needed to meet the requirements onthe part to be produced. READ MORE

5. 24. Geological characterisation of geophysical lineaments as part of the expanded site descriptive model around the planned repository site for high-level nuclear waste, Forsmark, Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Aron Bakker; [2021]
   Keywords : Forsmark; deformation zones; Svecokarelian; Sveconorwegian; ductile-brittle transition; brittle deformation; mylonite; Earth and Environmental Sciences;

   Abstract : The Swedish Nuclear Fuel and Waste Management Co. (SKB) started a project in 2020 near Forsmark, Sweden with the aim to expand the deformation zone model to encompass the entire catchment area around the planned repository for spent nuclear fuel. READ MORE

6. 25. An Investigation of the breakage process of particles : With help of experimental results and discrete element methods

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Ronni Bashiry; [2021]
   Keywords : Geotechnical Engineering; Breakage; Fracture; Spherical particles; DEM; Modelling; Numerical modelling;

   Abstract : In this study the breakage mechanics of brittle glass marbles was investigated. The pro-cess was to firstly investigate them in laboratory environment. The marbles or specimens was loaded until a crushing breakage occurred in a single point load test called Single Sphere Point load test in this document. READ MORE