1. Ultrasonic Echo Localization Using Seismic Migration Techniques in Engineered Barriers for Nuclear Waste Storage

   • Christoph Büttner
   • Ernst Niederleithinger
   • Christian Friedrich

   OriginalPaper Open access 18 November 2021 Article: 99

   

2. A Simple Algorithm Based on a 2D Heat Diffusion Mathematical Model to Extract a Surface Crack Length from a Sonic IR Thermal Image Alone

   • Samer M. Al-Said
   • Bassam A. Abu-Nabah

   OriginalPaper 17 November 2021 Article: 98

   

3. Correction to: On the Use of X-ray Computed Tomography in Assessment of 3D-Printed Components

   • Mohammad Reza Khosravani
   • Tamara Reinicke

   Correction Open access 17 November 2021 Article: 97

4. Magnetostrictive Guided Wave Transducer with Semicircular Structure for Defect Detection of Semi-Exposed Pipe

   • Linhao Wang
   • Jiang Xu
   • Chaoyue Hu

   OriginalPaper 16 November 2021 Article: 96

   

5. Crack Detection Around Raised Head Rivets in Aluminum Aircraft Structures

   • P. R. Underhill
   • T. W. Krause

   OriginalPaper 16 November 2021 Article: 95

   

6. Assessment of TSA Technique for the Estimation of CFRP T-Joint Debonding

   • D. Palumbo
   • R. De Finis
   • U. Galietti

   OriginalPaper 15 November 2021 Article: 94

   

7. Influence of Defects on Stress Detection by Magnetic Barkhausen Noise

   • Hongming Tu
   • Jianbo Wu
   • Shicheng Qiu

   OriginalPaper 13 November 2021 Article: 93

   

8. Defect Enhancement and Image Noise Reduction Analysis Using Partial Least Square-Generative Adversarial Networks (PLS-GANs) in Thermographic Nondestructive Evaluation

   • Qiang Fang
   • Clemente Ibarra‐Castanedo
   • Xavier Maldague

   OriginalPaper 12 November 2021 Article: 92

   

9. Evaluating Rolling Contact Fatigue Damage Precursors with Rayleigh Waves in 1060 Steel

   • Changgong Kim
   • Yaswanth Sai Jetti
   • Kathryn H. Matlack

   OriginalPaper 05 November 2021 Article: 91

   

10. Inspection of Welding Defect Based on Multi-feature Fusion and a Convolutional Network

    • Lei Yang
    • Junfeng Fan
    • Yanhong Liu

    OriginalPaper 19 October 2021 Article: 90

    

11. Theoretical and Experimental Studies of Structural Health Monitoring of Carbon Composites with Integrated Optical Fiber Sensors Based on Fiber Bragg Gratings

    • Oleg Budadin
    • Vladimir Vavilov
    • Marina Kuimova

    OriginalPaper 07 October 2021 Article: 89

    

12. The Detection of Impact Damage to the Edges of CFRP Plates Using Extensional Ultrasonic Edge Waves

    • Jun Yu Harry Chu
    • Charles R. P. Courtney

    OriginalPaper Open access 05 October 2021 Article: 88

    

13. Structural Health Assessment of Timber Utility Poles Using Stress Wave Propagation and Artificial Neural Network Techniques

    • S. Bandara
    • P. Rajeev
    • I. Flatley

    OriginalPaper 05 October 2021 Article: 87

    

14. Nondestructive, Microwave Testing of Compression Strength and Moisture Content of Green Molding Sands

    • Beata Gal
    • Daniel Nowak

    OriginalPaper Open access 24 September 2021 Article: 86

    

15. Signal Enhancement in Surface Crack Detection with Gas-Coupled Laser Acoustic Detection

    • Dario Vangi
    • Mara Bruzzi
    • Michelangelo S. Gulino

    OriginalPaper Open access 22 September 2021 Article: 85

    

16. Detection of Aberrations in Bulk Density in Additive Manufactured 300 M Steel using X-ray Radiographic Testing and Ultrasonic Testing

    • Shannon P. Farrell

    OriginalPaper 16 September 2021 Article: 84