000 02819cam a2200349 a 4500
003 EG-GiCUC
005 20250223032609.0
008 201006s2020 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.12.17.Ph.D.2020.Et.S
100 0 _aEthar Ahmed Abdelsalam Ahmed
245 1 0 _aSome plane problems of piezo-thermoelasticity with microstructure, within the frame of extended thermodynamics /
_cEthar Ahmed Abdelsalam Ahmed ; Supervised A. F. Ghaleb , M. S. Aboudina , H.A.Z. Hassan
246 1 5 _aبعض المسائل المستوية فى نظرية المرونة الحرارية البيزوكهربائية للأوساط المتصلة ذات التركيب الدقيق فى الديناميكا الحرارية المعممة
260 _aCairo :
_bEthar Ahmed Abdelsalam Ahmed ,
_c2020
300 _a204 P. :
_bcharts , facsmilies ;
_c25cm
502 _aThesis (Ph.D) - Cairo University - Faculty of Science - Department of Mathematics
520 _aThis thesis is concerned with the study of some phenomena occuring in deformable piezoelastic media subjected to various thermal,mechanical and electric influences, within Extended Thermodynamics.These media are characterized by a complex structure,thus requiring special attention to the continuum model describing them.We have chosen as our basic model the 2dual-phase-lag 3 model that has become increasingly popular in the past two decades or so.This model is characterized by two thermal relaxation times that describe lagging behavior. The problems tackled in this thesis illustrate the different behavioral faces of heat propagation under different conditions. We have produced both exact and approximate solutions to two-dimensional problems. Different proper mathematical techniques have been applied to resolve these problems:One-sided Fourier transform technique, normal mode analysis, and numerical method based on an explicit finite-difference scheme. We have illustrated our results graphically whenever possible, to show the behavior of the quantities of practical interest, and we have compared the results obtained by DPL model with those obtained by L-S theory in some cases. We have pointed out at the various applications involved in the obtained solutions,in the different fields of Technology and in Applied Sciences
530 _aIssued also as CD
653 4 _aDual-Phase-Lag
653 4 _aGeneralized thermoelasticity
653 4 _aPiezo-thermoelasticity
700 0 _aA. F. Ghaleb ,
_e Supervisor
700 0 _aH.A.Z. Hassan ,
_e Supervisor
700 0 _aM. S. Aboudina ,
_e Supervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aAmira
_eCataloger
905 _aNazla
_eRevisor
942 _2ddc
_cTH
999 _c78109
_d78109