Sökning: "Jacob Rubenson"
Hittade 2 avhandlingar innehållade orden Jacob Rubenson.
1. Modelling crack-induced ultrasonic scattering in a thick-walled pipe
Sammanfattning : Ultrasonic testing is used in several industries where there are high demands on safety, e.g. nuclear power and aerospace industries. In the nuclear industry and elsewhere there are many pipes that need to be tested. LÄS MER
2. Modelling of ultrasonic scattering from a crack in a pipe
Sammanfattning : This thesis considers elastic wave scattering in an infinitely long cylindrical pipe with an infinitely long internal axial crack. The method used in this thesis is called a hypersingular integral equation method since it starts with an integral representation and by using the Green's tensor of the pipe it can be manipulated to a hypersingular equation for the crack-opening displacement (COD). LÄS MER