Multi-scale analysis of the progressive failure behaviour of 2.5D woven SiC/SiC composites under compression

Chenyu Yang; Chao You; Weilong Wu; Qiyu Wu; Xiguang Gao; Fang Wang; Yingdong Song

Journal of Materials Research and Technology (Jan 2025)

Multi-scale analysis of the progressive failure behaviour of 2.5D woven SiC/SiC composites under compression

Chenyu Yang,
Chao You,
Weilong Wu,
Qiyu Wu,
Xiguang Gao,
Fang Wang,
Yingdong Song

Affiliations

Chenyu Yang: Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China
Chao You: Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China; Corresponding author. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China
Weilong Wu: AECC Shenyang Engine Research Institute, Shenyang, 110015, PR China
Qiyu Wu: Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China
Xiguang Gao: Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China
Fang Wang: College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, PR China
Yingdong Song: Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China; State Key Laboratory of Mechanics and Control Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China; Harbin Engineering University, Harbin, 150006, PR China

Journal volume & issue: Vol. 34
pp. 427 – 438

Abstract

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The compressive behaviour of 2.5D woven SiC/SiC composites is investigated in this paper. Compressive tests of 2.5D woven SiC/SiC composites were firstly conducted to obtain the compressive strength and the constitutive relationship. The evolution of surface strain distributions implying the trends of damage accumulation were obtained using digital image correlation (DIC) during the test. Subsequently, the microscale and mesoscale failure modes of the specimens were comprehensively characterised using X-ray computed tomography (X-CT) and scanning electron microscopy (SEM). To simulate the damage evolution process of specimens, a multi-scale finite element model representing the meso-scale structure of 2.5D SiC/SiC composites was developed, in which the proposed progressive damage method emphasising on matrix damage was adopted. This model was demonstrated to be capable of accurately predicting the compressive stress-strain curve and damage evolution of 2.5D SiC/SiC composites, showing good consistency with experimental characterisations.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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