Ha­ce­dor：CEA

Using com­pu­ter si­mu­la­tion for stud­ying the in­ter­ac­tion of an ul­tra­sound field with a sam­ple allows de­ve­lo­ping ade­qua­te trans­du­cers and their ap­pli­ca­tion met­hods and in­crea­sing the re­lia­bi­lity of the ob­tai­ned re­sults, while at the same time kee­ping the de­ve­lop­ment costs low. UT ins­pec­tion si­mu­la­tion by CIVA is based on po­wer­ful soft­wa­re mo­du­les for step-by-step si­mu­la­tion of the en­ti­re ins­pec­tion pro­cess:

 

• Spe­ci­men de­fi­ni­tion: By using sim­ple, pre­de­fi­ned spe­ci­men mo­dels to com­plex CAD files based spe­ci­men cha­rac­te­ri­za­tions
• UT beam compu­tation: Using every type of prac­ti­ca­lly re­le­vant UT pro­bes
• UT ins­pec­tion si­mu­la­tion: For beam in­ter­ac­tion analy­sis with spe­ci­mens and flaws

 

Spe­ci­men de­fi­ni­tion

• Pre­di­fi­ned sim­ple geo­me­tries: Pla­nar, cy­lin­dri­cal, co­ni­cal, sp­he­ri­cal
• Pre­de­fi­ned com­po­nents: Nozz­le, butt and T-weld tem­pla­tes, tur­bi­ne blade root and groo­ve, th­rough wall pe­ne­tra­tion, elbow, pla­tes with fas­te­ners
• Im­port of spe­ci­mens: 2D and 3D CAD data, ho­mo­ge­neo­us and he­te­ro­ge­neo­us sam­ples, so­lids, as­sem­blies of dif­fe­rent so­lids

 

UT beam compu­tation

CIVA is pre­pa­red for cal­cu­la­ting the sound field of vir­tua­lly every com­mer­cia­lly avai­la­ble ul­tra­so­nic trans­du­cer, as well as the pe­ne­tra­tion of the ge­ne­ra­ted beam into the spe­ci­men via any kind of coupling me­dium.

• Trans­du­cer type: Sin­gle ele­ment, dual ele­ment, pha­sed array, TOFD, tan­dem pro­bes, EMAT
• Coupling: Im­mer­sion and con­tact type trans­du­cers pos­si­ble
• Shape: Rec­tan­gu­lar, cir­cu­lar, ellip­ti­cal
• Fo­cus­sing: Eit­her by sha­ped trans­du­cer sur­fa­ce (sp­he­ri­cal, bi­fo­cal, Fer­mat fo­cus­sing) or by added acous­tic lens
• Ex­ci­ta­tion pulse: Fre­quency, band­width, pulse du­ra­tion, delay laws (for pha­sed array) se­lec­ta­ble
• Pha­sed array pro­bes: An­nu­lar, 1D li­near, 2D ma­trix, 2D sec­to­rial or ellip­ti­cal pat­tern, EMAT pha­sed array

 

 

UT ins­pec­tion si­mu­la­tion

CIVA si­mu­la­tes the in­ter­ac­tion of the acous­tic field with a spe­ci­men (with or wit­hout flaws) de­fi­ned by the user.

• In­ter­ac­tion with ca­li­bra­tion de­fects: Si­de-dri­lled holes, flat bot­tom and he­misp­he­ri­cal holes
• Pre­de­fi­ned de­fect types: Pla­nar, rec­tan­gu­lar or semi ellip­ti­cal
• Cus­to­mi­zed de­fect types: Mul­ti­fa­ce­ted de­fects, 2D CAD con­tour de­fects, bran­ched de­fects
• De­fect num­ber: Sin­gle de­fect, mul­ti­ple de­fects
• Re­sult dis­play: A-SCAN, B-SCAN, C-SCAN, D-SCAN, TOF-Scan, Echo-dy­na­mics
• Re­pre­sen­ta­tion: Si­mu­la­tion re­sults can be su­per­im­po­sed on spe­ci­men outli­ne
• Ad­van­ced: POD (pro­ba­bi­lity of de­tec­tion) cal­cu­la­tion avai­la­ble