Influence of Uncertainties on the Dynamic Buckling Loads of Structures Liable to Asymmetric Postbuckling Behavior
المؤلفون المشاركون
Santee, Donald Mark
Gonçalves, Paulo Batista
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2008، العدد 2008 (31 ديسمبر/كانون الأول 2008)، ص ص. 1-24، 24ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2008-06-23
دولة النشر
مصر
عدد الصفحات
24
التخصصات الرئيسية
الملخص EN
Structural systems liable to asymmetric bifurcation usually become unstable at static load levels lower than the linear buckling load of the perfect structure.
This is mainly due to the imperfections present in real structures.
The imperfection sensitivity of structures under static loading is well studied in literature, but little is know on the sensitivity of these structures under dynamic loads.
The aim of the present work is to study the behavior of an archetypal model of a harmonically forced structure, which exhibits, under increasing static load, asymmetric bifurcation.
First, the integrity of the system under static load is investigated in terms of the evolution of the safe basin of attraction.
Then, the stability boundaries of the harmonically excited structure are obtained, considering different loading processes.
The bifurcations connected with these boundaries are identified and their influence on the evolution of safe basins is investigated.
Then, a parametric analysis is conducted to investigate the influence of uncertainties in system parameters and random perturbations of the forcing on the dynamic buckling load.
Finally, a safe lower bound for the buckling load, obtained by the application of the Melnikov criterion, is proposed which compare well with the scatter of buckling loads obtained numerically.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gonçalves, Paulo Batista& Santee, Donald Mark. 2008. Influence of Uncertainties on the Dynamic Buckling Loads of Structures Liable to Asymmetric Postbuckling Behavior. Mathematical Problems in Engineering،Vol. 2008, no. 2008, pp.1-24.
https://search.emarefa.net/detail/BIM-475728
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gonçalves, Paulo Batista& Santee, Donald Mark. Influence of Uncertainties on the Dynamic Buckling Loads of Structures Liable to Asymmetric Postbuckling Behavior. Mathematical Problems in Engineering No. 2008 (2008), pp.1-24.
https://search.emarefa.net/detail/BIM-475728
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gonçalves, Paulo Batista& Santee, Donald Mark. Influence of Uncertainties on the Dynamic Buckling Loads of Structures Liable to Asymmetric Postbuckling Behavior. Mathematical Problems in Engineering. 2008. Vol. 2008, no. 2008, pp.1-24.
https://search.emarefa.net/detail/BIM-475728
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-475728
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر