Browsing by Author "Vojáčková, Barbora"

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Elasto-plastic material model of green beech wood

Zlámal, Jan; Mařík, Robert; Vojáčková, Barbora; Cristini, Valentino; Brabec, Martin; Praus, Luděk; Tippner, Jan (Springer Japan KK, 2024)

Physically modelling the mechanical response of a tree by numerical simulation depends on having accurate data on the mechanical properties of green hardwood. Lacking such data, we developed and validated an orthotropic ...
The role of geometry precision in frequency-resonance method for non-destructive wood assessment - numerical case study on sugar maple

Tippner, Jan; Vojáčková, Barbora; Zlámal, Jan; Kolařík, Jaroslav; Paulic, Vinko; Funai, James (CRC Press/Taylor and Francis Group, 2023)

The application of frequency-resonance method (FRM) for precise log bending testing is limited by complex geometry; usually the cone with variable cross. This case study presents the relationship among non-destructively ...
Using 3D digital image correlation in an identification of defects of trees subjected to bending

Tippner, Jan; Praus, Luděk; Brabec, Martin; Sebera, Václav; Vojáčková, Barbora; Milch, Jaromír (Elsevier GmbH, 2019)

Abrupt changes of climate have intensified during the last few decades, bringing higher risks from tree failures by either uprooting or stem breakage. To eliminate the risks, many techniques of tree assessment are being ...