Real cracks in real components
Trueflaw produces cracks using a natural thermal fatigue damage mechanism. These cracks are used for flawed specimens in various industries and purposes. In development, flawed samples are used for tuning and testing the developed NDT method with real response. In training, flawed samples are used to give trainees representative feedback to aid learning. In performance demonstration, flawed specimens are used to confirm that the NDT procedure meets the expected performance target. This can mean wide ranging assessment using both theorethical reasoning and test trials (as in ENIQ qualification) or it can mean probability of detection evaluation using, e.g. the ASTM E2862 standard.
The produced natural cracks have similar properties to most service induced cracks. There are no changes to the microstructure of the sample or other artifacts induced by the process. Cracks can be produced to various materials and complex shapes. Crack sizes range from 0.1 mm to 100 mm and above. Samples of any size can be handled.
The cracks are produced with fully automated crack making machines and the process is highly repeatable. Crack depth information is available through destructive validation of simplified sample. We currently have 10 crack making machines working 24/7 so we can work on several cracks in parallel. We have made over 6000 cracks to date.
Trueflaw offers both custom samples tailored to individual tasks and standard samples for process evaluation or POD determination.
In addition to physical flaws, Trueflaw offers eFlaw virtual flaws. Virtual flaws are an interesting new opportunity for mechanized inspections. For these inspections, existing data files can be modified to introduce flaws from other data files.