Load-deflection relations of t-section rails under lateral loads

• Autorzy: Song Y. , Yu Z

Warianty tytułu

PL

Charakterystyki obciążeniowo-odkształceniowe szyn o przekroju teowym poddanych obciążeniom poprzecznym

• Języki publikacji: EN

Abstrakty

EN

This paper studies the load-deflection relations of T-section rails under lateral loads based on elastic-plastic theory. A linear-hardening model and an elastic-plastic power-exponent hardening model of the material are adopted in this study. The analytical expressions for the load-deflection relations in the loading process are given. Compared with the experimental results, it is found that the load-deflection curves calculated with the elastic-plastic powerexponent hardening model are closer to the experimental results than those with the linearhardening model.

PL

W pracy zaprezentowano charakterystyki obciążeniowo-odkształceniowe obciążanych poprzecznie szyn o przekroju teowym otrzymane na podstawie teorii lepkosprężystości. W badaniach przyjęto model materiału o liniowym oraz potęgowym umocnieniu. Podano analityczne wyrażenia dla krzywych obciążenia w funkcji odkształcenia. W wyniku weryfikacji eksperymentalnej stwierdzono, że charakterystyki obciążeniowo-odkształceniowe otrzymane przy zastosowaniu modelu z potęgowym umocnieniem materiału są bliższe rezultatom doświadczalnym niż w przypadku modelu z umocnieniem liniowym.

Słowa kluczowe

EN

T-section rail; load-deflection relations; lateral loads; linear-hardening model

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2013
• Tom: Vol. 51 nr 1
• Strony: 195--202
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Song Y.

• Zhejiang University, Institute of Modern Manufacturing Engineering, Hangzhou, China

autor

Yu Z

• Zhejiang University, Institute of Modern Manufacturing Engineering, Hangzhou, China

Bibliografia

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