LOOK INSIDE MOVING PARTS WITH 4D X-RAY COMPUTED TOMOGRAPHY
4D CT (computed tomography) is a step up from the conventional 3D Computed Tomography test. This advanced imaging method creates a volumetric 3D model with a live motion of the specimen in operation.
4D CT uses a new technology that captures the location and movement of the abnormalities and the direction of the specimen over time. It allows users to reconstruct a complete 3D CT model that includes time and motion, creating a genuinely dynamic volumetric dataset. Because this technology is based on X-rays, internal and external structures are obtained. This new technology makes it possible to study form, structure, and function.
Case Study 1 :
Client Introduction:
Oil & Gas Industry
pROBLEM
A customised 3D printed block, printed with encapsulated carbon fibre reinforcement. It was designed for the oil and gas industry, with highly customisable, robust and chemically resistant properties. Carbon fibre-reinforced PEEK (Polyether Ether Ketoneis) is relatively new in the commercialised 3D printing industry. Therefore the characterisation of the printed material must be studied. This includes the fibre distribution, density of the printed specimen and the ease of performing a high-quality print. The client intends to investigate the printed specimen's porosity distribution and the density of the sample being investigated.
Solution:
CT scan could determine all the minute details and porosity of the printed sample. At first, there was doubt about encapsulated fibre not breaking apart during the printing process, and the judgement was made possible by performing CT scan, where all the fibres were confirmed to be absent in all the voids detected. The test was then further proved using destructive tests and microscopy analysis.
Review:
All CT scans were reviewed with PTS specialists to ensure the dataset met the customer's requirements before they were handed over. PTS were capable of providing consultation on a case-by-case basis to brainstorm customised solutions for customers who needed help in the validation of a product and their relevant testing services.
CASE STUDY 2:
Client Introduction:
Research institution focused on the study of composite materials in real-life applications.
pROBLEM
To study the fibre volume content, porosity percentage and defects within the composite.
Solution:
Computed Tomography CT was used to quantify the sample's fibre volume and porosity percentage. The defects, including fraying fibre strands and odd weaving patterns on the fibre composites can be detected. Additionally, fibres with different densities may be isolated and analysed individually to validate the integrity of the composite fibre structure.
Review:
The CT system paired with a Microfocus tube in PTS is capable of picking up fine details in fibre composite products up to 7μm with proper set-up parameterisation and scanning technique.
Application of 4D X-Ray Computed Tomography
Perform rotation and cross-sectional view of dataset just like any other 3D reconstruction model, but with motion.
Visualise the motion of internal and external geometry in action.
Analyse mechanical assembly.
Analyse contact point of assembly in motion.
Analyse defects or matter propagation over time.
Talk to us today
Our testing experts ensure the quality of your finished products and materials by utilizing our 4D X-ray computed tomography scanning service. For more information, please call us or send us an enquiry today.
