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Axial and Shear Buckling Analysis of Multiscale FGM Carbon Nanotube Plates Using the MTSDT Model: A Numerical
Ravi Kumar1, Ajay Kumar1, Małgorzata Szafraniec2
1Department of Civil Engineering, National Institutes of Technology Patna, Patna 800005, India.
Materials (Basel, Switzerland)
|April 12, 2022
Summary
This study analyzes the buckling of carbon nanotube (CNT)-reinforced functionally graded material (FGM) plates. Results provide critical buckling loads for CNT-FGM plates under various conditions, serving as valuable references.
Area of Science:
- Materials Science
- Mechanical Engineering
- Structural Analysis
Background:
- Functionally Graded Materials (FGM) offer tunable properties by varying composition.
- Carbon Nanotubes (CNTs) enhance material strength and stiffness.
- Buckling analysis is crucial for structural integrity under compressive loads.
Purpose of the Study:
- Investigate axial and shear buckling of CNT-reinforced multiscale FGM plates.
- Develop a computational model for accurate buckling load prediction.
- Provide novel buckling load data for diverse boundary conditions.
Main Methods:
- Utilized Modified Third-Order Shear Deformation Theory (MTSDT).
- Employed Halpin-Tsai and Voigt rule for effective material properties.
- Developed a MATLAB code using nine-noded iso-parametric elements.
Main Results:
- Validated the model against existing literature.
- Analyzed the influence of material composition, plate dimensions, loading, and boundary conditions.
- Presented critical buckling loads for CNT-FGM plates with various boundary conditions.
Conclusions:
- The developed model accurately predicts buckling loads for CNT-FGM plates.
- Material and geometric parameters significantly affect buckling behavior.
- The study provides the first comprehensive buckling load data for these advanced composite plates.
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