استفاده از روش نوار محدود برای تجزیه استاتیکی صفحات ساندویچی با هسته موج دار
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استفاده از روش نوار محدود برای تجزیه استاتیکی صفحات ساندویچی با هسته موج دار

عنوان فارسی مقاله: تجزیه و تحلیل استاتیکی و دینامیکی صفحات ساندویچی با هسته موج دار با استفاده از روش نوار محدود
عنوان انگلیسی مقاله: Static and dynamic analysis of corrugated-core sandwich plates using finite strip method
مجله/کنفرانس: سازه های مهندسی - Engineering Structures
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه، مدیریت ساخت، زلزله
کلمات کلیدی فارسی: صفحات ساندویچی با هسته موج دار، تجزیه و تحلیل استاتیکی، ارتعاش آزاد، ارتعاش واداشته، روش نوار محدود، نظریه تغییر شکل برشی مرتبه اول
کلمات کلیدی انگلیسی: Corrugated-core sandwich plate، Static analysis، Free vibration، Forced vibration، Finite strip method، First order shear deformation theory
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journals List - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.engstruct.2018.12.102
دانشگاه: Department of Civil Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 3/604 در سال 2018
شاخص H_index: 114 در سال 2019
شاخص SJR: 1/628 در سال 2018
شناسه ISSN: 0141-0296
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 22
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E11493
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Theory


3- Boundary conditions


4- Numerical results


5- Conclusion


References

نمونه متن انگلیسی مقاله

Abstract


Free and forced vibration and static analysis of corrugated-core sandwich plates are investigated in this study by employing the classic finite strip method. The 3D corrugated-core plate is converted to a 2D orthotropic continuum model by considering some equivalent elastic constants. Various boundary conditions and different features of these plates are explored and the geometric and mechanical factors influencing their responses, such as displacements, rotations, moments and shear forces, are evaluated. Because of the significant effect of the shear stiffness on the behavior of corrugated-core sandwich plates, the first order shear deformation theory (FSDT) is used to analyze the plate. Due to the comparatively low shear to flexural stiffness ratio of these plates compared to ordinary plates, the convergence of the results is relatively slow. Therefore, a fast numerical technique such as finite strip method which yields effective reduction of calculation cost is employed. A MATLAB program is developed to obtain the results and the validity of the proposed method is evaluated by comparing the results with those presented by previous researches.


Introduction


Corrugated-core sandwich plate (CSP) is a three-layered composite structure that consists of two main parts: a corrugated sheet (called the core plate) in the middle of the sandwich plate which has a sinus or trapezoidal cross section composed of high-strength or soft material, and two rectangular flat thin sheets that are connected to the top and bottom of the core, called the face plates. These plates are generally made up of high-strength materials such as steel or carbon fiber. Corrugated sandwich plates can be widely used in construction industries because of their simple handling and manufacturing compared with other types of composite plates. Some of the advantages of CSPs are as follows: • By increasing the gap between the two face plates and placing the core between them, the section moment of inertia and the load capacity of the structure also increase. • The weight of CSP decreases due to the presence of empty spaces in the core. These spaces also provide the possibility of passing the facilities. • The ability to absorb and deplete energy increases by using different materials in cores. • Carrying and installing CSPs is easier than ordinary plates. • The ability to isolate heat and sound in such plates is reachable by embedding insulating materials as core plate or in the middle of empty spaces of the plate. It is notable that corrugated core sandwich plates are periodic structures, which are capable of developing the wave stop bands (or band gaps) that acts like a directional frequency filter which restricts the free propagation of elastic/acoustic waves [1–4]. This effect can reduce the noise or vibration to some extent.

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