Delamination prediction in composite beams with built-in piezoelectric devices using modal analysis and neural network

Smart Materials and Structures

Volumn 5, Issue 3, 1996, Pages 338-347

  Chukwujekwu Okafor, A ^a   Chandrashekhara, K ^a   Jiang, Y P ^a  

^a Architectural and Environmental Engineering   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

BACKPROPAGATION; DELAMINATION; FAILURE ANALYSIS; LAMINATED COMPOSITES; MATHEMATICAL MODELS; MODAL ANALYSIS; NATURAL FREQUENCIES; NEURAL NETWORKS; PIEZOELECTRIC DEVICES; SENSORS; STIFFNESS;

DYNAMIC STRAIN SIGNAL; INSTRUMENTED HAMMER EXCITATION; LEARNING RATE; MOMENTUM RATE; PIEZOCERAMIC PATCH EXCITATION; POLYVINYLIDENE FLUORIDE FILM SENSOR; SIMPLIFIED BEAM THEORY;

COMPOSITE BEAMS AND GIRDERS;

EID: 0030173134     PISSN: 09641726     EISSN: None     Source Type: Journal    
DOI: 10.1088/0964-1726/5/3/012     Document Type: Article

References (8)

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3. Tracy J J and Pardoen G C 1989 Effect of delamination on the natural frequencies of composite laminates J. Composite Mater. 23 1200-15
4. Chaudhry Z and Rogers C A 1994 Smart structures: on-line health monitoring concepts and challenges Advanced Mater. and Process Technol. for Mechanical Failure Prevention, Proc. 48th Meeting of the Mechanical Failures Prevention Group (Wakefield, MA, USA, 1994) pp 13-9
5. Islam A S and Craig KC 1993 Damage detection and mitigation of composite structures using smart materials Smart Structures and Intelligent Systems vol 1917 ed N W Hagood and G J Knowles (Albuquerque: ) pp 980-7
6. Joshi S P and Chan W S 1991 Fabrication and curing of laminates with multiple embedded piezoceramic sensors and actuators Proc. ADPA/AIAA/ASME/SPIE Conf. Active Mater. and Adaptive Structures (Alexandria, VA, 1991) ed G J Knowles pp 701-5
7. Okafor A Chukwujekwu, Chandrashekhara K, Jiang Y P and Kilcher R R 1994 Damage assessment of smart composite plates using piezoceramic and acoustic emission sensors Smart Structures and Mater. 1994: Smart Sensing, Processing and Instrumentation Proc. SPIE (Orlando, FL, 1994) vol 2191, ed S J S Sirkis pp 265-75
8. Harris CM 1988 Shock and Vibration Handbook 3rd edn (New York: McGraw-Hill)