Theoretical Analysis on Needle-Punched Carbon/Carbon Composites
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Needle-punched carbon/carbon composites (NP-C/Cs) are advanced materials widely used in aerospace applications. The needle-punching technique improves the integrality of carbon-fibre plies, however, it also introduces many defects, affecting the mechanical behavior of NP-C/Cs. A theoretical model of irregular beams is suggested to investigate the mechanical behavior of unidirectional needle-punched carbon/carbon composites. Stress distributions in punched and squeezed fibres and an effect of the needle-punching technology are assessed.
KeywordsCarbon/carbon composites Mesomechanics Theoretical analysis
This work is partially supported by the National Natural Science Foundation of China (11872205, 11272147), SKL Open Fund (MCMS-0218G01), Foundation of National Scholarship of China (201706830073), Priority Academic Program Development of Jiangsu Higher Education Institutions.
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