Sökning: "Jonathan Fridstrand"

Hittade 2 uppsatser innehållade orden Jonathan Fridstrand.

1. 1. Investigation of case hardened steel subjected to torsion: An experimental and numerical elastic-plastic material study

   Master-uppsats, KTH/Hållfasthetslära

   Författare :Jonathan Fridstrand; [2022]
   Nyckelord :Torsion; Shear stress-strain relation; Elastoplastic material; Case hardened steel; Custom material model; Vridning; Skjuvtöjning och -spänning; Elastiskt-plastiskt material; Sätthärdat stål; Anpassad materialmodell;

   Sammanfattning : There is currently a knowledge gap regarding the plastic material properties of many steel types that Atlas Copco use in their high torque power tools. This makes it difficult to fully utilise the capabilities of the Finite Element Method (FEM) to aid the developmental process. LÄS MER

3. 2. Model parameter estimation for a handheld nutrunner

   Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Jonathan Fridstrand; Johanna Sturk; [2020]
   Nyckelord :;

   Sammanfattning : The purpose of this project is to investigate the angled nutrunner, which is a hand held torque tool often used in the industry to tighten bolted joints. The goal is to estimate parameter values for an existing model that can describe the reaction force and the angular displacement of the tool as a function of the torque transferred to the joint. LÄS MER