Ultrasonic Modeling of Real-Life NDT Situations: Applications and Further Developments

Marklein, R.; Langenberg, K. J.; Klaholz, S.; Kostka, J.

doi:10.1007/978-1-4613-0383-1_7

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…The Gauss-Hermite [7,8,9], the multi-Gaussian [10,11], and the boundary diffraction models [12,13,14] are all paraxial models. Other models have been developed that may be more detailed but also more computationally intensive than these [15,16,17,18,19,20,21]. The models describe fields generated by transducers of different shapes and fields and are calculated on the basis of external properties of the transducer (i.e.…”

Section: Theories Of Interaction With Probe Fieldsmentioning

confidence: 99%

Evolution of Qnde’s Core Interdisciplinary Science and Engineering Base

Thompson¹,

Chimenti²

2010

AIP Conference Proceedings

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Nondestructive testing (NDT) for flaws in materials and structures has undergone an evolutionary change over the past 50 years. In the U.S. it has moved from a testing strategy (NDT) with a zero defects requirement to a test and evaluate technology (NDE) based upon damage tolerant design considerations. Here it is assumed that the part will always contain defects but those greater than a critical size, specified by fracture mechanics, will be removed by inspection thereby resetting the part's service clock. In this talk, events will be identified that were critical in promoting this paradigm shift and in moving on to quantitative NDE (QNDE). A number of major research programs were also initiated to upgrade NDT to meet the new requirements; principal attention in this talk will be given to research highlights initiated in the first of these programs, the DARPA∕AFML Interdisciplinary Program for Quantitative Flaw Definition that was established 35 years ago. Its purpose was threefold: to develop a new core science∕people base for inspection technology that could meet the new requirements, to set the stage for new field-adaptable engineering tools, and to initiate the current continuing series of quantitative NDE (QNDE) meetings. Advances initiated in this program and pursued by many over the years have resulted in a scientific core structure for quantitative NDE (QNDE) based on a linkage of fundamental models of the various measurement processes that are involved in any inspection and∕or technology. These models and their linkage will be discussed and the core structure defined. A new and powerful set of engineering tools-i.e. simulation programs for UT, X-ray, and EC technologies -has also been developed using these models. Applications of these tools will be highlighted and their role in other advanced programs including Structural Health Monitoring and Condition-Based Maintenance will be noted. Finally, a discussion of visions of future opportunities and directions for QNDE will be given. Published by the American Institute of Physics. Related ArticlesInfluence of a localized defect on acoustic field correlation in a reverberant medium J. Appl. Phys. 110, 084906 (2011) Full-field imaging of nonclassical acoustic nonlinearity Appl. Phys. Lett. 91, 264102 (2007) Laser ablation of solid substrates in a water-confined environment Appl. Phys. Lett. 79, 1396Lett. 79, (2001 Estimation of lubricant thickness on a magnetic hard disk using acoustic emission Rev. Sci. Instrum. 71, 1915 (2000) A theoretical model for acoustic emission sensing process in contact/near-contact interfaces of magnetic recording system J. Appl. Phys. 85, 5609 (1999) Additional information on AIP Conf. Proc. ABSTRACT. Nondestructive testing (NDT) for flaws in materials and structures has undergone an evolutionary change over the past 50 years. In the U.S. it has moved from a testing strategy (NDT) with a zero defects requirement to a test and evaluate technology (NDE) based upon damage tolerant design considerations. Here it ...

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Section: Theories Of Interaction With Probe Fieldsmentioning

confidence: 99%

Evolution of Qnde’s Core Interdisciplinary Science and Engineering Base

Thompson¹,

Chimenti²

2010

AIP Conference Proceedings

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“…• EFIT Modeling Module ( Elastadynamie Finite Integration Technique) is based on the direct discretization of the governing equations of linear elastodynamics in integral form and simulates the given NDT situation exactly, i.e., the numerical modeling of arbitrary NDT situations and arbitrary flaw geometries including mode conversion effects and surface wave phenomena (1]. The implemented EFIT algorithm can handle inhomogeneaus anisotropic media including viscosity (2].…”

Section: Ulias Modulesmentioning

confidence: 99%

Numerical Modeling and Imaging with ULIAS: Ultrasonic Inspection Applying Simulation

Marklein

Mayer

Langenberg

1997

Review of Progress in Quantitative Nondestructive Evaluation

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“…The resulting discrete equations are then solved in a marching on in time sense. The software package is highly developed and can handle complicated inspection situations such as inspec tion of weldments or concrete [34]. Furthermore additional algorithms were developed by MARKLEIN [31] to treat acoustic wave propagation (AFIT) and piezoelectric wave propagation (PFIT) [32], and by RUDOLPH [49] for nonlinear acoustic wave propagation.…”

Section: Historical Perspectivementioning

confidence: 99%

Ultrasonic beam models in anisotropic media

Rudolph

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This is to certify that the Doctoral dissertation of Matthias Rudolph has met the dissertation requirements of Iowa State University Commi e Ni^ber Committee Member Committee Memb r Committee Member Co mittee M ber For the M jo P gram ror the Glraduate College Signature was redacted for privacy. Signature was redacted for privacy. Signature was redacted for privacy. Signature was redacted for privacy. Signature was redacted for privacy. Signature was redacted for privacy. Signature was redacted for privacy.

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Ultrasonic Modeling of Real-Life NDT Situations: Applications and Further Developments

Cited by 6 publications

References 7 publications

Evolution of Qnde’s Core Interdisciplinary Science and Engineering Base

Evolution of Qnde’s Core Interdisciplinary Science and Engineering Base

Numerical Modeling and Imaging with ULIAS: Ultrasonic Inspection Applying Simulation

Ultrasonic beam models in anisotropic media

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