[PDF][PDF] Smart data analysis of the results of ultrasonic inspections for probabilistic fracture mechanics

J Vrana, K Kadau, C Amann - VGB PowerTech, 2018 - researchgate.net
Most demanding components–for example heavy rotor forgings for the energy sector–are
inspected with volumetric and surface detection NDE methods–either manually or using …

Ultrasonic computed tomography− pushing the boundaries of the ultrasonic inspection of forgings

J Vrana, K Schörner, H Mooshofer… - steel research …, 2018 - Wiley Online Library
Forgings, being usually one of the most critical components especially in power generation
machinery, require intensive volumetric inspection to guarantee a sufficient lifetime. This is …

[PDF][PDF] The NDE 4.0-Early Success Stories

J Vrana, R Singh - Industrial Eye, 2022 - researchgate.net
Part of the confusion comes from it being a long journey with an ever-changing destination
and new pathways emerging all the time. All of us can only see a small fraction of the vast …

Probabilistic fracture mechanics for heavy-duty gas turbine rotor forgings

K Kadau, PW Gravett, C Amann - … of Engineering for …, 2018 - asmedigitalcollection.asme.org
We developed and successfully applied a direct simulation Monte Carlo (MC) scheme to
quantify the risk of fracture for heavy-duty rotors commonly used in the energy sector. The …

Evolution of the ultrasonic inspection requirements of heavy rotor forgings over the past decades

J Vrana, A Zimmer, K Bailey, R Angal… - AIP Conference …, 2010 - pubs.aip.org
Heavy rotor forgings for land‐based power generation turbines and generators are
inspected ultrasonically. Several decades ago the first inspections were conducted using …

[PDF][PDF] Evolution of the ultrasonic inspection over the past decades on the example of heavy rotor forgings

J Vrana, A Zimmer, HP Lohmann, W Heinrich… - 19th WCNDT, München …, 2016 - ndt.net
Several decades ago the first ultrasonic inspections were introduced to assure component
integrity. Those were, in the beginning, manual, straight beam, contact probe inspections …

A probabilistic model for forging flaw crack nucleation processes for heavy duty gas turbine rotor operations

F Radaelli, C Amann, A Aydin… - … for Gas Turbines …, 2022 - asmedigitalcollection.asme.org
We present a probabilistic model for quantifying the number of load cycles for nucleation of
forging flaws—for a 3.5 NiCrMoV high strength low alloy rotor steel—into a crack under gas …

Probabilistic fracture mechanics framework including crack nucleation of rotor forging flaws

F Radaelli, K Kadau, C Amann… - … Expo: Power for …, 2019 - asmedigitalcollection.asme.org
We present a probabilistic rotor life prediction framework that combines the forging flaw
crack nucleation process and the subsequent crack growth to failure. Experimental fatigue …

Probabilistic fracture mechanics for heavy duty gas turbine rotor forgings

K Kadau, PW Gravett, C Amann - … Expo: Power for …, 2017 - asmedigitalcollection.asme.org
We developed and successfully applied a direct simulation Monte-Carlo scheme to quantify
the risk of fracture for heavy duty rotors commonly used in the energy sector. The developed …

Probabilistic fracture mechanics of forged rotor disks

C Amann - 2017 - publikationen.bibliothek.kit.edu
Die in dieser Arbeit beschriebenen Ansätze und Methoden ermöglichen es, eine
konservative Abschätzung der Versagenswahrscheinlichkeit (PoF) von großen, stationären …