عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq2354846888
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Physics-Based Damage Modeling of Ceramic Matrix Composites for Extreme Heat Environments
نام عام مواد
[Thesis]
نام نخستين پديدآور
Alabdullah, Mohammad A B F
نام ساير پديدآوران
Ghoniem, Nasr M.
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
University of California, Los Angeles
تاریخ نشرو بخش و غیره
2019
مشخصات ظاهری
نام خاص و کميت اثر
133
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
University of California, Los Angeles
امتياز متن
2019
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
High-temperature composite materials have broad applications in the energy and transportation sectors because of their unique capabilities to sustain strength at elevated temperatures, inert interaction with some coolants, and their high strength-to-weight ratio. These encompass C/C and SiC/SiC composites, developed as cladding in fission reactors, and as turbine blade materials for advanced jet engines and combustion liners. Cyclic thermal and mechanical loading associated with neutron irradiation effects of these composites leads to wide-spread and progressive micro-cracking that leads to loss of thermal conductivity and further enhancement of thermo-mechanical damage. A physics-based model of wide-spread micro-crcaking is developed within the thermodynamic framework of continuum damage mechanics. Evolution equations for damage parameters that describe the growth of continuum damage are developed, where the material variables are obtained from experiments. The model novelty is in coupling mechanical, thermal, and irradiation damage through a consistent thermodynamic framework, including loss of thermal conductivity due to the evolution of mechanically induced micro-cracks. A number of thermo-mechanical experiments were conducted to confirm model assumptions. The model is shown to be validated with out-of-pile experiments, and then implemented using commercial finite element code COMSOL to the fuel cladding problem and FNSF blanket where coupling between different physics was achieved along with an implementation of global local approach. Finally, a set of performance diagrams for a thin-walled SiC tube structure subjected to cyclic thermo-mechanical loading associated with neutron irradiation were introduced to aid the community with first stage design tool for a thin walled CMC cylindrical structures.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Atomic physics
موضوع مستند نشده
Materials science
موضوع مستند نشده
Mechanical engineering
موضوع مستند نشده
Molecular physics
موضوع مستند نشده
Nuclear physics
موضوع مستند نشده
Thermodynamics
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Alabdullah, Mohammad A B F
مستند نام اشخاص تاييد نشده
Ghoniem, Nasr M.
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
