Experimental and numerical buckling analysis of CNT reinforced polymer composite plates

被引：0
|
作者：
Patel, Asha [1 ]
Das, Priyadarshi [2 ]
Biswal, Madhusmita [3 ]
Sahu, Shishir Kumar [1 ]
机构：
[1] Natl Inst Technol, Dept Civil Engn, Rourkela, Odisha, India
[2] Siksha O Anusandhan Deemed Be Univ, Dept Civil Engn, ITER, Bhubaneswar, Odisha, India
[3] CUPGS, BPUT, Dept Civil Engn, Rourkela, Odisha, India
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2024年
关键词：
carbon nano tubes (CNTs); polymer matrix; buckling load; finite element method; normalized buckling load; field emission scanning electronic microscope; FREE-VIBRATION; BEHAVIOR; SINGLE; PANELS; BEAM;
D O I：
10.1177/02670836241278898
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A combined experimental and numerical buckling analysis is performed for Carbon nanotube-reinforced composite (CNTRC) laminates under uniaxial in-plane compressive load. A finite element simulation program is developed in MATLAB environment and the recorded buckling responses are verified with the experimental results. Closely aligned numerical and experimental results exhibits that inclusion of 0.3% CNT increases buckling strengths of CNTRC composite laminates, regardless of their geometrical parameters. Clamped edge laminates exhibit higher buckling mode shapes, influenced by aspect ratio and edge restraint. Microscopic analysis of CNTRC's fractured surface under compression shows enhanced buckling strength attributed to CNTs' bridging and pullout effects in the matrix, suppressing crack initiation and propagation. Field Emission Scanning Electronic Microscope (FESEM) is utilized for this investigation.
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页数：15
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