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Defects

Home » Topics » Materials » Defects
  • November 1, 2017

    Influence of the Defect Size on the Tooth Root Load Carrying Capacity

    The objective of this work is to introduce a method for the calculation of the tooth root load carrying capacity for gears, under consideration of the influence of the defect size on the endurance fatigue strength of the tooth root. The theoretical basis of this method is presented in this paper as well as the validation in running tests of helical and beveloid gears with different material batches, regarding the size distribution of inclusions. The torque level for a 50 percent failure probability of the gears is evaluated on the test rig and then compared to the results of the simulation. The simulative method allows for a performance of the staircase method that is usually performed physically in the back-to-back tests for endurance strength, as the statistical influence of the material properties is considered in the calculation model. The comparison between simulation and tests shows a high level of accordance.
  • May 1, 2017

    Inclusion-Based Bending Strength Calculation of Gears

    Reduced component weight and ever-increasing power density require a gear design on the border area of material capacity. In order to exploit the potential offered by modern construction materials, calculation methods for component strength must rely on a deeper understanding of fracture and material mechanics in contrast to empirical-analytical approaches.
  • January 1, 2007
    By Michael Goldstein

    What Do You Think

    Publisher Michael Goldstein wants to know what you think about the 2007 redesign of Gear Technology magazine
Read More
  • February 13, 2005

    REM Chemicals and Rosler GmbH Partner in Metal Finishing

  • May 1, 2004

    Evaluation of Bending Strength of Carburized Gears

  • April 17, 2004

    Manufacturing Association Elects New Board of Directors

  • May 1, 2002

    Industry News

  • January 1, 1999

    Revolutions

  • November 1, 1997

    Gear Shaving Basics - Part I

  • January 1, 1992

    Design Guidelines for High-Capacity Bevel Gear Systems

  • November 1, 1991

    Calendar

  • September 1, 1991

    SPC Acceptance of Hobbing & Shaping Machines

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Blog Posts

  • August 26, 2020
    By Charles D. Schultz

    Finding Good Candidates

  • February 26, 2020
    By Charles D. Schultz

    After Further Review

  • July 18, 2019
    By Charles D. Schultz

    Science Experiments

  • September 20, 2018
    By Charles D. Schultz

    Frequently Asked Questions

  • September 13, 2018
    By Charles D. Schultz

    Custom Work: Nonconforming Realities

Read More

Authors

  • Charles schultz
    Charles D. Schultz
  • Michael goldstein
    Michael Goldstein
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