000 01221nam a22002417a 4500
999 _c59451
_d59451
008 180912s2015 ua a|||g bm|| 00| 0 eng d
040 _cSOUL
041 _aeng
082 0 4 _221
_bL C
_a541.36
100 1 _94924
_aLabib, Amr
245 1 0 _aCrack detection in frames using natural frequency degradations /
_cAmr Labib ; David Kennedy, Carol Featherston.
260 _a[Wales, United Kingdom] :
_bCardiff University,
_c2015.
300 _a139 p. :
_bill. ;
_c30 cm +
_e1 CD.
500 _aThesis (Ph.D) - Cardiff University.
504 _aIncludes Bibliographical References.
520 _aCrack detection at an early stage can prevent catastrophic failures. In this thesis, the inverse problem of crack detection in frames is studied. The direct problem of calculating the natural frequencies of beams and frames with multiple cracks is first tackled. Anew method for natural frequency calculation is devised. the cracks are modelled as rotational springs.
546 _aText in English, Summary in English.
650 0 _93908
_aChemistry, Analytic
700 1 _94925
_aKennedy, David
_eSupervisor
700 1 _94926
_aFeatherston, Carol
_eSupervisor
710 2 _aCardiff University.
942 _2ddc
_cTHE
_iFOE
_6FOE