Linear damage rule life prediction for stress controlled fatigue-creep interaction of aluminum alloys
Other Title(s)
تخمين عمر الضرر الخطي للإجهاد المسيطر لتداخل الكلال و الزحف لسبائك الألمنيوم
Joint Authors
Abd al-Jabbar, Salah F.
Hasan, Shakir Sakran
al-Alkawi, Husayn Jasim Muhammad
Source
Engineering and Technology Journal
Issue
Vol. 30, Issue 5 (31 Jan. 2012), pp.729-743, 15 p.
Publisher
Publication Date
2012-01-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Topics
Abstract AR
تم بحث أداء تداخل الكلال مع الزحف لسبيكتي الألمنيوم 5086 و 6061-T651 لعينات فحصت تحت سیطرة الإجهاد و الانحناء الدوار بنسبة إجهاد R=-و درجة حرارة 250 °C.
تم تقييم ضرر الكلال الزحفي اعتمادا على قاعدة الضرر الخطية حيث ان ضرر الكلال استخرج كعدد دورات لحد الفطل و ضرر الزحف اعتمد على زمن التسلیط العملي للاجهادات من واطئ-عالي و عالي واطئ.
تداخل الضرر التراكمي للكلال و الزحف وجد عند حوالي 0.5 حيث ان 0.5 = Dc+Df .
تم تخمین أعمار تداخل الكلال الزحفي بواسطة قاعدة الضرر الخطیة و قورنت مع الأعمار الحقیقیة و بینت النتائج ان تخمینات القاعدة الخطیة كانت أعلى بكثیر من النتائج العملیة.
Abstract EN
The fatigue-creep interaction performance of 5086 and 6061-T651 aluminum alloys were investigated for specimens tested under control stress rotating bending at a stress ratio R = -1 and 250°C temperature.
The fatigue endurance limit for both alloys reduced at 250°C.
The fatigue and creep damage was evaluated based on the linear damage rule, where the fatigue damage was determined as the number of cycles to failure and the creep damage was evaluated based on the time applied experimentally for low to high and high to low amplitude stress.
The cumulative fatigue-creep interaction damage was found to around 0.5 i.e DF + Dc =0.5 Fatigue–creep interaction lives predicted by the linear damage rule were compared to the actual lives.
The results show that the linear damage rule gave overestimated predictions.
American Psychological Association (APA)
al-Alkawi, Husayn Jasim Muhammad& Hasan, Shakir Sakran& Abd al-Jabbar, Salah F.. 2012. Linear damage rule life prediction for stress controlled fatigue-creep interaction of aluminum alloys. Engineering and Technology Journal،Vol. 30, no. 5, pp.729-743.
https://search.emarefa.net/detail/BIM-297070
Modern Language Association (MLA)
al-Alkawi, Husayn Jasim Muhammad…[et al.]. Linear damage rule life prediction for stress controlled fatigue-creep interaction of aluminum alloys. Engineering and Technology Journal Vol. 30, no. 5 (2012), pp.729-743.
https://search.emarefa.net/detail/BIM-297070
American Medical Association (AMA)
al-Alkawi, Husayn Jasim Muhammad& Hasan, Shakir Sakran& Abd al-Jabbar, Salah F.. Linear damage rule life prediction for stress controlled fatigue-creep interaction of aluminum alloys. Engineering and Technology Journal. 2012. Vol. 30, no. 5, pp.729-743.
https://search.emarefa.net/detail/BIM-297070
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 742-743
Record ID
BIM-297070
