Essays about: "hardness tests"

Showing result 6 - 10 of 80 essays containing the words hardness tests.

  1. 6. The Effects of Material Properties in Saw Chain Cutting Efficiency Tests : Investigating the repeatability of cutting efficiency tests

    University essay from

    Author : Petter Ödvall; Jakob Ivarsson; [2023]
    Keywords : Alternative Material; Cutting Efficiency; Density; Hardness; Knots; Moisture Content; Pinus Sylvestris; Polyethylene; Regression Model; Saw Chain;

    Abstract : Manufacturers of saw chains continuously strive to increase the performance of their products by reducing cutting times and minimising the energy consumption required for cutting. However, the evaluation process through testing is problematic as several uncontrollable factors impact the results. READ MORE

  3. 7. Irradiation Embrittlement on a Core Shroud from Decommissioned BWR

    University essay from KTH/Fysik

    Author : Åsa Bjåland; [2023]
    Keywords : hardness; Vickers hardness test; ATT; yield strength; irradiation embrittlement; welds; hårdhet; Vickers hårdhetstest; ATT; sträckgräns; bestrålningsförsprödning; svetsar;

    Abstract : Irradiation embrittlement is a problematic issue for internal structures, such as acore shroud, in a light water reactor. It is characterized by decreased ductility andtoughness, and increased yield strength and hardening due to increased dislocations. READ MORE

  4. 8. Fatigue Crack Growth Analysis in Python algorithm with Finite Element Methods : Numerical Simulation of Fatigue Crack Growth

    University essay from Karlstads universitet

    Author : Hasan Majid; [2022]
    Keywords : ;

    Abstract : The goal of this thesis was to construct and develop a python-based finite element computer program for the evaluation of fatigue crack growth rate in notched metallic rods. The simulation was done by implementing elastic stress theory and linear elastic fracture mechanics techniques. READ MORE

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

    University essay from KTH/Hållfasthetslära

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

    Abstract : 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. READ MORE

  6. 10. Rock Strength Testing of Drill Core Samples From Kiirunavaara Below Level 1365

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Giorgios Doulamis; [2022]
    Keywords : Kiirunavaara; Point Load test; Leeb hardness test; intact rock strength; correlation factor;

    Abstract : The geotechnical parameters of the different lithologies are of great importance regarding mining, infrastructures development and safety. The main aims of this thesis project are the evaluation of the previously acquired point load tests (PLT) data and the acquisition of a larger set for the various lithologies and alterations. READ MORE