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07.132018Training on reliability in NDTCategory "More to Extende" | No comment

To help NDE professionals to master the necessary tools & methodologies for NDE reliability evaluation, EXTENDE offers a new training on this topic, in partnership with PHIMECA and CEA.

This multi-sector training (aerospace, oil & gas, nuclear …), deals with main notions regarding: 

  •        Influential parameters sensitivity analysis,
  •        POD curves and other statistical indicators (PFA, ROC, POR, etc.),
  •        Applicable standards, handbooks and recommended practices regarding NDT reliability, qualification & performance demonstration (ASME BPVC, RSEM, MH1823, DNV-OS-F101, etc.),
  •        The benefits of simulation (parametric studies, metamodels, MAPOD).

Many practical exercises on various examples and tools are planned (statistical computation & analysis) aiming at a pragmatic & pedagogic approach to these methodologies.

The first session will take place from December 10th to 12th 2018 (this session will be in French only, sessions in English are planned for 2019).

For any question & registrations, please contact us at

The EXTENDE team


05.142018New CINDE article availableCategory "CIVA Software" | No comment


Here is a very interesting article from Mr. Paul Holloway, P. Eng.,  published in the CINDE journal and dealing withStructural UT: Variables Affecting Attenuation and Review of the 2 dB per Inch Model

The North American standards for welded steel construction, CSA W59[1] and AWS D1.1[2], use an approximation for ultrasonic attenuation of 2dB/in. This approximation is based on the use of large, low frequency transducers which are not always well-suited to the wide range of weld thicknesses and geometries used in the codes. This paper documents computer simulations and experimental results performed to gauge the suitability of this linear factor to approximate a non-linear  phenomenon. Additionally, models of smaller transducers and higher frequencies are included to study their effect. This is performed to determine how alternate criteria and procedures may be developed to retain the same levels of sensitivity but expand the range of transducers beyond that currently permitted.”

To read the full article, you can visit our article library here.

The EXTENDE team


About Extende

We believe that high quality and innovative Non Destructive Evaluation (NDE) will make our world a safer place and will help preserve the environment.

Therefore, our mission is to bring the benefits of Simulation and NDE Development Methodology to the NDE Community.

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