Progressive failure analysis of center-notched laminar composites in tension
Abstract
This paper presents the application of the full-layerwise-theory (FLWT) in conjunction with the smeared crack-band (SCB) damage model for progressive failure analysis (PFA) of a center-notched tensile (CNT) laminar composite. The FLWT-SCB approach employs layered finite elements, enhancing computational efficiency while maintaining the accuracy of 3D finite elements. Both the initiation and modes of failure were determined using the Hashin failure criterion. The damaged lamina's response in both fiber and matrix directions was characterized by distinct bilinear strain-softening curves. To address mesh dependency, the fracture energy was scaled using a characteristic element length. A benchmark numerical study is presented to analyze the impact of specimen size on the tensile strength of center-notched laminar composites. To validate the model's effectiveness, results were compared against experimental and benchmark data from the literature, demonstrating excellent agreement. The model ...also revealed a weak dependency between the size of the structure and the mesh, and has a potential in analysis of bio-based composites such as CLT.
Keywords:
progressive failure analysis / smeared crack band damage model / full layerwise theorySource:
9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal, 2024Funding / projects:
- Substrate4CLT
Collections
Institution/Community
GraFarTY - CONF AU - Marjanović, Miroslav AU - Jočić, Emilija PY - 2024 UR - https://www.mechcomp9.com/ UR - https://grafar.grf.bg.ac.rs/handle/123456789/3538 AB - This paper presents the application of the full-layerwise-theory (FLWT) in conjunction with the smeared crack-band (SCB) damage model for progressive failure analysis (PFA) of a center-notched tensile (CNT) laminar composite. The FLWT-SCB approach employs layered finite elements, enhancing computational efficiency while maintaining the accuracy of 3D finite elements. Both the initiation and modes of failure were determined using the Hashin failure criterion. The damaged lamina's response in both fiber and matrix directions was characterized by distinct bilinear strain-softening curves. To address mesh dependency, the fracture energy was scaled using a characteristic element length. A benchmark numerical study is presented to analyze the impact of specimen size on the tensile strength of center-notched laminar composites. To validate the model's effectiveness, results were compared against experimental and benchmark data from the literature, demonstrating excellent agreement. The model also revealed a weak dependency between the size of the structure and the mesh, and has a potential in analysis of bio-based composites such as CLT. C3 - 9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal T1 - Progressive failure analysis of center-notched laminar composites in tension UR - https://hdl.handle.net/21.15107/rcub_grafar_3538 ER -
@conference{ author = "Marjanović, Miroslav and Jočić, Emilija", year = "2024", abstract = "This paper presents the application of the full-layerwise-theory (FLWT) in conjunction with the smeared crack-band (SCB) damage model for progressive failure analysis (PFA) of a center-notched tensile (CNT) laminar composite. The FLWT-SCB approach employs layered finite elements, enhancing computational efficiency while maintaining the accuracy of 3D finite elements. Both the initiation and modes of failure were determined using the Hashin failure criterion. The damaged lamina's response in both fiber and matrix directions was characterized by distinct bilinear strain-softening curves. To address mesh dependency, the fracture energy was scaled using a characteristic element length. A benchmark numerical study is presented to analyze the impact of specimen size on the tensile strength of center-notched laminar composites. To validate the model's effectiveness, results were compared against experimental and benchmark data from the literature, demonstrating excellent agreement. The model also revealed a weak dependency between the size of the structure and the mesh, and has a potential in analysis of bio-based composites such as CLT.", journal = "9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal", title = "Progressive failure analysis of center-notched laminar composites in tension", url = "https://hdl.handle.net/21.15107/rcub_grafar_3538" }
Marjanović, M.,& Jočić, E.. (2024). Progressive failure analysis of center-notched laminar composites in tension. in 9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal. https://hdl.handle.net/21.15107/rcub_grafar_3538
Marjanović M, Jočić E. Progressive failure analysis of center-notched laminar composites in tension. in 9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal. 2024;. https://hdl.handle.net/21.15107/rcub_grafar_3538 .
Marjanović, Miroslav, Jočić, Emilija, "Progressive failure analysis of center-notched laminar composites in tension" in 9th International Conference on Mechanics of Composites, 26-28 June 2024, Porto, Portugal (2024), https://hdl.handle.net/21.15107/rcub_grafar_3538 .