Thermo-Mechanical Analysis for Composite Cylindrical Shells with Temperature-Dependent Material Properties Under...

Area of Science:

• Mechanical Engineering
• Materials Science
• Thermodynamics

Background:

• Composite laminated structures offer design flexibility and enhanced mechanical performance.
• Understanding their behavior under combined thermal and mechanical loads is critical for engineering applications.

Purpose of the Study:

• To investigate the mechanical behavior of laminated cylindrical shells under combined thermal and mechanical loads.
• To develop an accurate analytical method considering temperature-dependent material properties.

Main Methods:

• Utilized the theory of thermoelasticity to derive exact solutions for temperature, displacement, and stress.
• Employed an iterative method, slice model, and transfer matrix method based on Fourier's law of heat conduction.
• Formulated state-space equations and applied continuity conditions for recursive interface analysis.

Main Results:

• Developed a method to determine unique, temperature-dependent solutions for temperature, displacement, and stress.
• Validated the method's accuracy and effectiveness through convergence and comparative studies.
• Quantified significant differences (up to 33.74% for stress) when neglecting temperature dependence.

Conclusions:

• The proposed method accurately analyzes laminated cylindrical shells under combined loads.
• Temperature-dependent material properties significantly influence mechanical responses.
• Explored the impact of various parameters like surface temperature and layer configuration on shell behavior.