The use of ultrasonic property measurements as the basis for finite element analysis of composite materialsIn this work, the use of ultrasonic property measurements as the basis for finite element analysis of full scale composite components is presented. The approach utilizes multiple velocity measurements at oblique angles of incidence and quantitative analysis of radiographic images for the local determination of each of the nine orthotropic moduli in a woven carbon-carbon composite. These values were then used as input into a finite element code (NASTRAN) to analyze the response of the material to load: here, diametric compression. The predicted response was then compared with strain gage results at several locations to validate the approach.
Document ID
19930062821
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Madaras, E. I. (NASA Langley Research Center Hampton, VA, United States)
Kline, R. A. (NASA Langley Research Center Hampton, VA, United States)
Cruse, G. (NASA Langley Research Center Hampton, VA, United States)
Striz, A. G. (Oklahoma Univ. Norman, United States)