Characterization of composite materials by means of the ultrasonic stress wave factorThe usual approach to nondestructively evaluating a composite structure involves inspection and mechanical analysis of the inspection results. Such an approach has met with only limited success. On the other hand, the ultrasonic stress wave factor technique directly evaluates the material. Despite requiring access to only one surface of the material, the technique interrogates the material in the directions of applied load. Using the stress wave factor technique it is possible to determine the failure location in the material. The correlation of the stress wave factor with stiffness is shown. In addition, the use of the technique for determining the strength or life of composite material structures is discussed.
Document ID
19840027643
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Duke, J. C., Jr. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Henneke, E. G. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Stinchcomb, W. W. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Reifsnider, K. L. (Virginia Polytechnic Institute and State University Blacksburg, VA, United States)