Esnek üstyapılarda tekerlek temas gerilmesi ve deplasman dağılımlarının üç boyutlu sınır eleman metodu ile belirlenmesi

Year 2021, Volume: 36 Issue: 3, 1199 - 1212, 24.05.2021

İbrahim Özgür Deneme

https://doi.org/10.17341/gazimmfd.753193

Abstract

Bu çalışmada, esnek üstyapıların davranışının sayısal olarak belirlenmesi için Sınır Eleman Metodu (SEM) kullanılmıştır. Zeminin malzeme davranışının doğrusal elastik olduğu varsayılan çalışmada SEM, Fourier dönüşüm uzayında ele alınmıştır. Bu çalışmada, elastik yarım uzaydaki iç noktalarda oluşan gerilme ve deplasman dağılımlarının belirlenmesi amaçlanmıştır. Bu amaçla çalışmada, üç boyutlu elastik problemler için bir bilgisayar programı geliştirilmiştir. Sınır eleman formülasyonu kullanılarak belirlenen esnek üstyapılarda oluşan gerilme ve deplasman dağılımlarının sonuçları, literatürde verilen Boussinesq denklemlerinin kullanılmasıyla elde edilen değerler ile karşılaştırılmıştır. SEM ve Boussinesq formülünden elde edilen sonuçların birbiriyle mükemmel bir uyum içinde olduğu sonucuna varılmıştır.

Keywords

: Sınır eleman metodu, Fourier dönüşüm uzayı, esnek üstyapı davranışı, sabit sınır eleman

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