A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental and numerical study on failure behaviors of composite grid stiffeners under tensile and flexural loading
https://orcid.org/0000-0002-8904-0943
Abstract Experimental and numerical studies are carried out to investigate the failure behavior of grid stiffeners under tension and flexural loadings. The grid stiffeners with three different typical layup schemes at the intersection were manufactured and tested. A 3D anisotropic damage model based on continuum damage mechanics is developed to modeling the progressive failure behaviors of the grid stiffeners. Besides, the digital image correlation (DIC) technique was adopted to capture the complex deformation and failure process. Results show that introducing discontinuous plies at the intersection could change the failure mechanism and hence improve the mechanical performance of the grid structure. The tensile and flexural strength are improved by 21% and 23% respectively by properly introducing 25% of discontinuous plies at the intersection. This work provides insights on the failure mechanisms of the composite grid stiffeners, and results can be further used towards the optimization design of the grid structure.
Highlights Progressive failure behaviors were captured by 3D anisotropic damage model. Introducing discontinuous ply at intersection improve the mechanical performance. Digital image correlation technique was adopted to explore flexural failure modes.
Experimental and numerical study on failure behaviors of composite grid stiffeners under tensile and flexural loading
https://orcid.org/0000-0002-8904-0943
Abstract Experimental and numerical studies are carried out to investigate the failure behavior of grid stiffeners under tension and flexural loadings. The grid stiffeners with three different typical layup schemes at the intersection were manufactured and tested. A 3D anisotropic damage model based on continuum damage mechanics is developed to modeling the progressive failure behaviors of the grid stiffeners. Besides, the digital image correlation (DIC) technique was adopted to capture the complex deformation and failure process. Results show that introducing discontinuous plies at the intersection could change the failure mechanism and hence improve the mechanical performance of the grid structure. The tensile and flexural strength are improved by 21% and 23% respectively by properly introducing 25% of discontinuous plies at the intersection. This work provides insights on the failure mechanisms of the composite grid stiffeners, and results can be further used towards the optimization design of the grid structure.
Highlights Progressive failure behaviors were captured by 3D anisotropic damage model. Introducing discontinuous ply at intersection improve the mechanical performance. Digital image correlation technique was adopted to explore flexural failure modes.
Experimental and numerical study on failure behaviors of composite grid stiffeners under tensile and flexural loading
https://orcid.org/0000-0002-8904-0943
Abstract Experimental and numerical studies are carried out to investigate the failure behavior of grid stiffeners under tension and flexural loadings. The grid stiffeners with three different typical layup schemes at the intersection were manufactured and tested. A 3D anisotropic damage model based on continuum damage mechanics is developed to modeling the progressive failure behaviors of the grid stiffeners. Besides, the digital image correlation (DIC) technique was adopted to capture the complex deformation and failure process. Results show that introducing discontinuous plies at the intersection could change the failure mechanism and hence improve the mechanical performance of the grid structure. The tensile and flexural strength are improved by 21% and 23% respectively by properly introducing 25% of discontinuous plies at the intersection. This work provides insights on the failure mechanisms of the composite grid stiffeners, and results can be further used towards the optimization design of the grid structure.
Highlights Progressive failure behaviors were captured by 3D anisotropic damage model. Introducing discontinuous ply at intersection improve the mechanical performance. Digital image correlation technique was adopted to explore flexural failure modes.
Experimental and numerical study on failure behaviors of composite grid stiffeners under tensile and flexural loading
Zheng, Chuanxiang (author) / Wang, Zhenyu (author) / Wang, Liang (author) / Lu, Jinjie (author) / Lin, Jiao (author) / Dai, Yuchen (author)
Thin-Walled Structures ; 185
2023-02-11
Article (Journal)
Electronic Resource
English
Matrix failure in composite laminates under tensile loading
| British Library Online Contents | 2016
Experimental Study on Prefabricated Lightweight Composite Wall Panels under Flexural Loading
| BASE | 2020