FWD Backcalculation with ELLEA1 - Tutorial

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  • Опубликовано: 24 янв 2025

Комментарии • 40

  • @AshanWickramasinghe
    @AshanWickramasinghe 3 года назад

    Thanks for your effort. Im currently working on my BSC research related to FWD.I will appear your work.

  • @bamidelebamisile7965
    @bamidelebamisile7965 4 года назад

    Good job Dr. Eyal! I'm working on my Masters Degree Capstone project and looking to research FWD. Be assured that your work will appear in my citation.
    Thank you.

    • @levenberg
      @levenberg  4 года назад

      Thanks for the kind words. Happy to be of service.

  • @paulw3591
    @paulw3591 2 года назад

    Priceless

  • @mostapha9360
    @mostapha9360 3 года назад

    Thank you for the demonstration, very helpful

    • @levenberg
      @levenberg  3 года назад

      Happy to be of service

  • @adel1830
    @adel1830 4 года назад

    Thank you for the tutorial.

    • @levenberg
      @levenberg  4 года назад

      Welcome. Feel free to check out my new book: www.amazon.com/dp/8797231703

    • @adel1830
      @adel1830 4 года назад

      @@levenberg Thank you for the link.

  • @BilalKhan-gk8df
    @BilalKhan-gk8df 3 года назад

    Excellent work !!

  • @sunilkothari8057
    @sunilkothari8057 Год назад

    what if effect on results if we increase thickness of bc in calaclution

    • @levenberg
      @levenberg  Год назад

      Sorry. I am not able to understand the question. In any case, the worksheet allows you to test sensitivities to changes in input values.

    • @sunilkothari8057
      @sunilkothari8057 Год назад

      @@levenberg sir if our existing DBM and BC Thickness is 190 mm , but in calculation we taken 250mm then the results showing balance life less or more ?

    • @levenberg
      @levenberg  Год назад

      @@sunilkothari8057 I still cannot understand the question. What is DBM? What is BC? What is 'Balance Life'? In general, the code solves a set of mathematical equations. The implications and meaning of the calculation results on reality are a matter of engineering judgment.

  • @BilalKhan-gk8df
    @BilalKhan-gk8df 3 года назад

    This will really help for all the relevant Engineers... is it possible to share the calculation procedure.

    • @levenberg
      @levenberg  3 года назад +1

      You have my blessing to forward-share this clip with relevant others...

  • @adel1830
    @adel1830 4 года назад

    How the stress, strain and displacement are calculated in the main sheet

    • @levenberg
      @levenberg  4 года назад

      The answer to your question is in the book...

  • @nilopolo3163
    @nilopolo3163 3 года назад

    Dear doctor, what considerations are taken in retrocalculation of mixed pavements?

    • @levenberg
      @levenberg  3 года назад

      Can you provide an example?

    • @nilopolo3163
      @nilopolo3163 3 года назад

      @@levenberg
      tread layer: hot mix asphalt.
      Concrete slab.
      Granular base.
      Subgrade.

    • @levenberg
      @levenberg  3 года назад +1

      @@nilopolo3163 In this case i would pre-set the PCC modulus. Also, i expect some bias in the backalculation results due to joints in the concrete. Lastly, quasi-static analysis may not work well - you need to check this against a dynamic solver.

    • @nilopolo3163
      @nilopolo3163 3 года назад +1

      @@levenberg Doctor, ELLEA1 by what methodology does it determine stresses and strains? Elastic Multilayer? or MET ODEMARK?

    • @levenberg
      @levenberg  3 года назад

      @@nilopolo3163 Multilayered elastic. Equations can be found here:
      www.amazon.com/Pavement-Mechanics-Prof-Eyal-Levenberg/dp/8797231703

  • @BkizduB
    @BkizduB Месяц назад

    @levenberg Why was x set to 888

    • @levenberg
      @levenberg  Месяц назад

      The choice of 888 is to emphasize it is a random selection. Any other number will work. There is no effect on the results.

    • @BkizduB
      @BkizduB Месяц назад

      @@levenberg Thank you, I appreciate how quickly you replied, great job!

  • @josephabbas7644
    @josephabbas7644 3 года назад

    is there is any way to download the ellea1 excel sheet? please and thank you

    • @levenberg
      @levenberg  3 года назад

      There are currently two options. One from my academia.edu website. The other from my DTU Orbit website.

  • @hzwnnzm
    @hzwnnzm 2 года назад

    greeting where to get ELLEA formula?

    • @levenberg
      @levenberg  2 года назад

      www.academia.edu/8241687/Validation_of_NCAT_Structural_Test_Track_Experiment_using_INDOT_APT_Facility_final_report_

  • @יאירקאופמן-צ4ח
    @יאירקאופמן-צ4ח 3 месяца назад

    שלום דר אייל, סרטון מעולה, אשמח בבקשה לסרטון על איך משתמשים בתוכנת MODULUS נפוצה מאוד בתחום תכן מבנה והתרשמתי שרק מעטים יודעים באמת איך היא עובדת. תודה מראש.

    • @levenberg
      @levenberg  3 месяца назад

      @@יאירקאופמן-צ4ח תודה. לגבי תוכנת מודולוס, לא עבדתי איתה מעולם.

  • @pranavsharma361
    @pranavsharma361 4 года назад

    can you please send this excel sheet

    • @levenberg
      @levenberg  4 года назад

      Hi. Thanks for the interest. It can be downloaded from: orbit.dtu.dk/en/activities/ellea1-isotropic-layered-elasticity-in-excel-pavement-analysis-to