Nondestructive Testing

nondestructive testing

Accident Reconstruction Analysis, PLLC (ARA) offers a wide range of nondestructive evaluation (NDE) services including visual inspection testing (VT), radiography testing (RT), computed tomography (CT) scanning, penetrant testing (PT), magnetic particle testing (MT), and ultrasonic testing (UT).  We also have a handheld X-ray fluorescence (XRF) analyzer for determining the alloy or composition of metals non-destructively and we have a FLIR infrared camera for measuring temperatures remotely.  ARA uses various laser scanning systems to non-destructively document evidence, accident scenes, and other items.

We offer non-destructive testing to evaluate materials and components to detect discontinuities or defects in these items. We are able to inspect and investigate samples using advanced technology and techniques such as CT scanning, chemical analysis, etc. We offer NDT services for the analysis and for forensic investigations of vehicles, industrial equipment, residential  equipment and structures, electronic and electrical devices, and many other items. NDT testing can provide confidence that flaws are absent from products.  NDE techniques can be used to characterize defects present in components and provide certainty concerning the possibility of a failure occurring.  

CT Imaging

Reconstructed computed tomography (CT) images of a PVC piping assembly.  This assembly had a 3-inch inner diameter and was about 3-feet in length.  There is a radial, axial “crack” near the top, right corner of the vertical cylinder shown in the left image (marked with an arrow).  A slice through this crack is shown in the right image at the top, left of slices and is also marked with an arrow.

 

CT Imaging

A transverse CT image of the PVC piping assembly showing the axial, radial “crack” (at the bottom of the slice). Note that the crack appears to have initiated and propagated from a square notch on the ID of the “tee.”

Radiographic Imaging

Radiographic images of a new temperature switch (N) and a failed temperature switch from service (S).  Note the position of the contacts on the right side of these switches.  With both switches at room temperature, these contacts should be closed (like the new switch).

 

Axial Switch

An axial switch through the two temperature switches shown in the previous images with the service switch on the left and the new switch on the right. Note the greater detail and resolution of features in this image versus the standard radiographic images.

Ultra High Resolution

Another CT image of a relay coil showing a break in the magnet wire (marked with an arrow) from the inner diameter of the winding produced during the manufacture of this device. The diameter of the magnet wire is less than 0.020-inches.