1、Lessons Learned Entry: 0510Lesson Info:a71 Lesson Number: 0510a71 Lesson Date: 1994-07-27a71 Submitting Organization: LARCa71 Submitted by: Bernard LewisSubject: Limitations of Classical Plate Theory for Composite Materials Caused by Neglecting the Effects of Shear Deformation and Rotary Inertia Des
2、cription of Driving Event: N/ALesson(s) Learned: The lack of agreement between theory and experiment at the higher frequencies demonstrates the limitations of classical plate theory for composite materials caused by neglecting the effects of shear deformation and rotary inertia. A Higher Order Plate
3、 Theory (HOPT) using these effects to predict the dispersion behavior was in much better agreement with the experimental measurements.Recommendation(s): This work has been published in the technical paper “Propagation of Flexural Mode AE Signals in GR/EP Composite Plates“, by W. H. Prosser and M. R.
4、 Gorman, NASA LaRC.Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AMission Directorate(s): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N/AAdditional Key Phrase(s): a71 Research & DevelopmentAdditional Info: Approval Info: a71 Approval Date: 1997-04-02a71 Approval Name: Elijah C. Kenta71 Approval Organization: 421a71 Approval Phone Number: 757-864-3345Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
