Experimental and computational study on mechanical behaviour of carpentry corner log joints - Publikacja - MOST Wiedzy

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Experimental and computational study on mechanical behaviour of carpentry corner log joints

Abstrakt

This work concerns experimental and numerical research on carpentry joints used in historic wooden buildings in southeastern Poland and western Ukraine. These structures are mainly sacred buildings, and the types of corner log joints characteristic of this region are primarily saddle-notch and dovetail joints; thus, these two types of joints were analysed in this study. The modelling of historic timber structures is a complex issue, so the following steps are necessary to obtain accurate solutions: verification, validation and uncertainty quantification. The first and third steps were performed in a previous study, so the current research aimed to validate the numerical models and perform simulations of carpentry joints. Herein, the authors created finite element models of two types of joints and subsequently analysed the mechanical behaviour of these joints. Due to issues concerning model validation, the authors designed a testing stand for corner joints, which formed a part of a biaxial testing machine. The joints were subjected to horizontal loads (deformations), which may cause damage to the connection. Thus, special parts were designed for the stand, which made it possible to fix the joint and prevented eccentric forces that could possibly damage the machine during testing. The authors presented the differences and similarities in the behaviour of both types of joints, emphasizing the corresponding advantages and disadvantages. In addition, the authors determined which type of joint was the most susceptible to damage and what elements failed first. This paper also showed the complexity of modelling timber structures and the accuracy of the proposed numerical models for both types of joints through comparisons of the numerical and experimental results. This work primary addressed the problems in accurately reflecting material, load and boundary conditions in numerical modelling of tested carpentry corner log joints.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
ENGINEERING STRUCTURES nr 213, strony 1 - 15,
ISSN: 0141-0296
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Kłosowski P., Pestka A., Krajewski M., Lubowiecka I.: Experimental and computational study on mechanical behaviour of carpentry corner log joints// ENGINEERING STRUCTURES -Vol. 213, (2020), s.1-15
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.engstruct.2020.110515
Źródła finansowania:
  • Projekt
Weryfikacja:
Politechnika Gdańska

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