Controlled Creation of Contact Cracks in Additive Manufactured Components
Techniques for the controlled seeding and growth of cracks are urgently required for non-destructive testing technique evaluation, particularly for additive manufactured (AM) samples. This paper describes a method that uses a combination of the tensile load and the resonance excitation of notched AM...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/13/21/11990 |
| _version_ | 1827765748540375040 |
|---|---|
| author | Daniel Preston Ahmed Ashour Julian Wright James Watts Daniel Sanmartin Jacques Wood |
| author_facet | Daniel Preston Ahmed Ashour Julian Wright James Watts Daniel Sanmartin Jacques Wood |
| author_sort | Daniel Preston |
| collection | DOAJ |
| description | Techniques for the controlled seeding and growth of cracks are urgently required for non-destructive testing technique evaluation, particularly for additive manufactured (AM) samples. This paper describes a method that uses a combination of the tensile load and the resonance excitation of notched AM samples, with in situ monitoring of the resonance frequency serving to track the crack dimensions. Mechanical low-cycle fatigue cracks, ranging in length from ~0.3 mm to ~5 mm, were successfully created in five AM samples using this technique. The samples were non-destructively characterized using optical microscopy and Nonlinear Resonance (NLR) testing. The exploitation of resonance enabled the concentration of a significant number of stress cycles on the samples in much shorter timespans than conventional fatigue testing, enabling a high throughput while utilizing compact components. Furthermore, the tracking of the resonance frequency shift throughout the process enabled non-invasive and no-contact real-time condition monitoring. |
| first_indexed | 2024-03-11T11:33:15Z |
| format | Article |
| id | doaj.art-0a74956dfab0460e8604f3c0b10c3ffe |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T11:33:15Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-0a74956dfab0460e8604f3c0b10c3ffe2023-11-10T14:59:24ZengMDPI AGApplied Sciences2076-34172023-11-0113211199010.3390/app132111990Controlled Creation of Contact Cracks in Additive Manufactured ComponentsDaniel Preston0Ahmed Ashour1Julian Wright2James Watts3Daniel Sanmartin4Jacques Wood5Theta Technologies Limited, Exeter EX5 2FN, UKTheta Technologies Limited, Exeter EX5 2FN, UKTheta Technologies Limited, Exeter EX5 2FN, UKTheta Technologies Limited, Exeter EX5 2FN, UKTheta Technologies Limited, Exeter EX5 2FN, UKPlymouth Science Park, Plymouth PL6 8BX, UKTechniques for the controlled seeding and growth of cracks are urgently required for non-destructive testing technique evaluation, particularly for additive manufactured (AM) samples. This paper describes a method that uses a combination of the tensile load and the resonance excitation of notched AM samples, with in situ monitoring of the resonance frequency serving to track the crack dimensions. Mechanical low-cycle fatigue cracks, ranging in length from ~0.3 mm to ~5 mm, were successfully created in five AM samples using this technique. The samples were non-destructively characterized using optical microscopy and Nonlinear Resonance (NLR) testing. The exploitation of resonance enabled the concentration of a significant number of stress cycles on the samples in much shorter timespans than conventional fatigue testing, enabling a high throughput while utilizing compact components. Furthermore, the tracking of the resonance frequency shift throughout the process enabled non-invasive and no-contact real-time condition monitoring.https://www.mdpi.com/2076-3417/13/21/11990non-destructive testingcrackscontact cracksresonanceflaw seedingnonlinear |
| spellingShingle | Daniel Preston Ahmed Ashour Julian Wright James Watts Daniel Sanmartin Jacques Wood Controlled Creation of Contact Cracks in Additive Manufactured Components Applied Sciences non-destructive testing cracks contact cracks resonance flaw seeding nonlinear |
| title | Controlled Creation of Contact Cracks in Additive Manufactured Components |
| title_full | Controlled Creation of Contact Cracks in Additive Manufactured Components |
| title_fullStr | Controlled Creation of Contact Cracks in Additive Manufactured Components |
| title_full_unstemmed | Controlled Creation of Contact Cracks in Additive Manufactured Components |
| title_short | Controlled Creation of Contact Cracks in Additive Manufactured Components |
| title_sort | controlled creation of contact cracks in additive manufactured components |
| topic | non-destructive testing cracks contact cracks resonance flaw seeding nonlinear |
| url | https://www.mdpi.com/2076-3417/13/21/11990 |
| work_keys_str_mv | AT danielpreston controlledcreationofcontactcracksinadditivemanufacturedcomponents AT ahmedashour controlledcreationofcontactcracksinadditivemanufacturedcomponents AT julianwright controlledcreationofcontactcracksinadditivemanufacturedcomponents AT jameswatts controlledcreationofcontactcracksinadditivemanufacturedcomponents AT danielsanmartin controlledcreationofcontactcracksinadditivemanufacturedcomponents AT jacqueswood controlledcreationofcontactcracksinadditivemanufacturedcomponents |