A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment
المؤلفون المشاركون
Kashani, Mir Tahmaseb
Hashemi, S. M.
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-25
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
Free vibration analysis of beams with single delamination undergoing bending-torsion coupling is made, using traditional finite element technique.
The Galerkin weighted residual method is applied to convert the coupled differential equations of motion into to a discrete problem, where, in addition to the conventional mass and stiffness matrices, a delamination stiffness matrix, representing the extra stiffening effects at the delamination tips, is introduced.
The linear eigenvalue problem resulting from the discretization along the length of the beam is solved to determine the frequencies and modes of free vibration.
Both “free mode” and “constrained mode” delamination models are considered in formulation, and it is shown that the continuity (both kinematic and force) conditions at the beam span-wise locations corresponding to the extremities of the delaminated region, in particular, play a great role in “free mode” model formulation.
Current trends in the literature are examined, and insight into different types of modeling techniques and constraint types are introduced.
In addition, the data previously available in the literature and those obtained from a finite element-based commercial software are utilized to validate the presented modeling scheme and to verify the correctness of natural frequencies of the systems analyzed here.
The paper ends with general discussions and conclusions on the presented theories and modeling approaches.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Kashani, Mir Tahmaseb& Hashemi, S. M.. 2018. A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment. Shock and Vibration،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215029
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Kashani, Mir Tahmaseb& Hashemi, S. M.. A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment. Shock and Vibration No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1215029
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Kashani, Mir Tahmaseb& Hashemi, S. M.. A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1215029
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215029
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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