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Computational Modeling of Micro-Crack Induced Attenuation in CFRP Composites
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Author and Affiliation:
Roberts, R. A.(Iowa State Univ., Center for NDE, Ames, IA, United States);
Leckey, C. A. C.(NASA Langley Research Center, Hampton, VA, United States)
Abstract: A computational study is performed to determine the contribution to ultrasound attenuation in carbon fiber reinforced polymer composite laminates of linear elastic scattering by matrix micro-cracking. Multiple scattering approximations are benchmarked against exact computational approaches. Results support linear scattering as the source of observed increased attenuation in the presence of micro-cracking.
Publication Date: Jul 15, 2012
Document ID:
20120016821
(Acquired Dec 12, 2012)
Subject Category: COMPOSITE MATERIALS
Report/Patent Number: NF1676L--15615
Document Type: Conference Paper
Meeting Information: 39th Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE) Conference; 15-20 Jul. 2012; Denver, CO; United States
Contract/Grant/Task Num: NAG1-029098; WBS 284848.02.04.07.01
Financial Sponsor: NASA Langley Research Center; Hampton, VA, United States
Organization Source: NASA Langley Research Center; Hampton, VA, United States
Description: 8p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: CARBON FIBER REINFORCED PLASTICS; ELASTIC SCATTERING; FIBER COMPOSITES; LAMINATES; MICROCRACKS; S MATRIX THEORY; SCATTERING; ULTRASONICS
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