Application of failure criteria on plywood under bending

Merhar, Miran (avtor)

In composite materials, the use of failure criteria is necessary to determine the failure forces. Various failure criteria are known, from the simplest ones that compare individual stresses with the corresponding strength, to more complex ones that take into account the sign and direction of the stress, as well as mutual interactions of the acting stresses. This study investigates the application of the maximum stress, Tsai-Hill, Tsai-Wu, Puck, Hoffman and Hashin criteria to beech plywood made from a series of plies of differently oriented beech veneers. Specimens were cut from the manufactured boards at various angles and loaded by bending to failure. The mechanical properties of the beech veneer were also determined. The specimens were modelled using the finite element method with a composite modulus and considering the different failure criteria where the failure forces were calculated and compared with the measured values. It was found that the calculated forces based on all failure criteria were lower than those measured experimentally. The forces determined using the maximum stress criterion showed the best agreement between the calculated and measured forces.

• Jezik: Angleški jezik
• Ključne besede: max stress, Tsai-Wu, Tsai-Hill, Puck, Hoffman, Hashin, failure criteria, beech, finite element modelling, composites
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 20 str.
• Številčenje: Vol. 13, iss. 24, art. 4449
• PID: 20.500.12556/RUL-134191
• UDK: 630*83
• ISSN pri članku: 2073-4360
• DOI: 10.3390/polym13244449
• COBISS.SI-ID: 90088451
• Datum objave v RUL: 28.12.2021

Gradivo je del revije

• Naslov: Polymers
• Skrajšan naslov: Polymers
• Založnik: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 18.12.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: maksimalna napetost, Tsai-Wu, Tsai-Hill, Puck, Hoffman, Hashin, porušitveni kriteriji, bukev, metoda končnih elementov, kompoziti

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0182
• Naslov: Razvojna vrednotenja