تحلیل کمانش و ارتعاشات آزاد پنل استوانه‌ای تقویت شده با توزیع‌های مختلف نانو لوله‌های کربنی بر بستر الاستیک

نوع مقاله: مقاله علمی پژوهشی

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چکیده

کمانش و ارتعاشات پنل استونه‌ای تقویت شده با توزیع‌های مختلف نانو لوله‌های کربنی برای دو حالت یکنواخت و مدرج تابعی مورد بررسی قرار می‌گیرد. معادلات دیفرانسیل حاکم بر پنل استوانه‌ای بر اساس تئوری تغییر شکل برشی مرتبه اول با استفاده از روش انرژی به‌دست می‌آید. همچنین از قانون اختلاط، برای تعیین خواص پوسته استوانه‌ای استفاده می‌شود. می‌توان نتیجه گرفت که با انتخاب مناسب توزیع نانو لوله کربنی و کسر حجمی سفتی سازه افزایش یافته و در نتیجه بار کمانش بحرانی و فرکانسهای طبیعی پنل استوانه‌ای افزایش می‌یابد. لذا این نکته در طراحی بهینه سازه‌ها در مقیاس نانو حائز اهمیت می‌باشد.

کلیدواژه‌ها

موضوعات


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