Incorporation of composite defects from ultrasonic NDE into CAD and FE models | Zendy

Onur Rauf Bingöl | Zendy; Bryan Schiefelbein | Zendy; Robert Grandin | Zendy; Stephen D. Holland | Zendy; Adarsh Krishnamurthy | Zendy

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Incorporation of composite defects from ultrasonic NDE into CAD and FE models

Author(s) -

Onur Rauf Bingöl,

Bryan Schiefelbein,

Robert Grandin,

Stephen D. Holland,

Adarsh Krishnamurthy

Publication year - 2017

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.4974728

Subject(s) - cad , aerospace , finite element method , composite laminates , composite number , delamination (geology) , materials science , computer science , residual , layer (electronics) , ultrasonic sensor , software , structural engineering , structural integrity , nondestructive testing , process (computing) , solid modeling , composite material , engineering drawing , engineering , acoustics , artificial intelligence , algorithm , aerospace engineering , biology , tectonics , operating system , paleontology , radiology , medicine , physics , subduction , programming language

Fiber-reinforced composites are widely used in aerospace industry due to their combined properties of high strength and low weight. However, owing to their complex structure, it is difficult to assess the impact of manufacturing defects and service damage on their residual life. While, ultrasonic testing (UT) is the preferred NDE method to identify the presence of defects in composites, there are no reasonable ways to model the damage and evaluate the structural integrity of composites. We have developed an automated framework to incorporate flaws and known composite damage automatically into a finite element analysis (FEA) model of composites, ultimately aiding in accessing the residual life of composites and make informed decisions regarding repairs. The framework can be used to generate a layer-by-layer 3D structural CAD model of the composite laminates replicating their manufacturing process. Outlines of structural defects, such as delaminations, are automatically detected from UT of the laminate and ...

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