Projekteja vuodessa
Abstrakti
Wood is a naturally occurring material widely used for construction. Due to its natural origin, wood properties vary and its behaviour is complex. This paper shows an implementation of a multi-surface elasto-plastic constitutive material model for wood into a custom explicit material point method code. The constitutive model chosen is one proposed by Schmidt & Kaliske with minor modifications to ensure better internal consistency. The model parameters are chosen based on literature data for spruce. The paper presents two Convected Particle Domain Interpolation Material Point Method simulations of experiments, both performed with the previously established model parameters. The first simulation replicates a compression test of a spruce specimen perpendicular to grain direction, carried out at the Department of Civil Engineering, Aalto University. The second simulation replicates an experiment from literature, in which a spruce specimen with knots is tensioned until failure. The numerical simulations successfully replicate the experimental outcomes qualitatively in terms of the deformation and load-displacement curves. Simulations of the three knotted specimens under tension, with introduced slight variation in wood grain direction, replicate different failure patterns with a similar failure load, resembling the behaviour of natural wooden structural elements. Additionally, one of the obtained failure patterns replicates that of the experiment well.
Alkuperäiskieli | Englanti |
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Artikkeli | 111333 |
Sivumäärä | 19 |
Julkaisu | International Journal of Solids and Structures |
Vuosikerta | 236-237 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 1 helmik. 2022 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Multi-Surfaced Elasto-Plastic Wood Material Model in Material Point Method'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 1 Päättynyt
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Pyrolyysin mallinnuksella paloturvallisia materiaaleja
Hostikka, S. (Vastuullinen tutkija), Adibaskoro, T. (Projektin jäsen), Makowska, M. (Projektin jäsen), Rinta-Paavola, A. (Projektin jäsen), Naji Nassajfar, M. (Projektin jäsen) & Cummings, E. (Projektin jäsen)
01/09/2016 → 31/12/2020
Projekti: Academy of Finland: Other research funding