TY - GEN

T1 - Improved modeling of C-block actuators

AU - Mitchell, Lori A.

AU - Gu, Haozhong

AU - Chattopadhyay, Aditi

PY - 1997/12/1

Y1 - 1997/12/1

N2 - A new class of bimorph actuators, called C-block actuators for their curved shape, have recently been proposed to provide improved performance characteristics over conventional straight bimorph actuators. Existing mathematical models of these actuators are based on classical curved beam theory which neglects transverse shear effects. The paper presents an improved mathematical model for C-block actuators of arbitrary thickness. The new model accounts for through-the-thickness transverse shear deformations using refined displacement fields. The results from this theory are compared to the existing classical model and experimental data. Both free and forced end conditions are investigated. An exact elasticity solution is also developed which provides a framework for comparison of the developed theory and other approximate theories.

AB - A new class of bimorph actuators, called C-block actuators for their curved shape, have recently been proposed to provide improved performance characteristics over conventional straight bimorph actuators. Existing mathematical models of these actuators are based on classical curved beam theory which neglects transverse shear effects. The paper presents an improved mathematical model for C-block actuators of arbitrary thickness. The new model accounts for through-the-thickness transverse shear deformations using refined displacement fields. The results from this theory are compared to the existing classical model and experimental data. Both free and forced end conditions are investigated. An exact elasticity solution is also developed which provides a framework for comparison of the developed theory and other approximate theories.

UR - http://www.scopus.com/inward/record.url?scp=0031356696&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031356696&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0031356696

SN - 0819424544

T3 - Proceedings of SPIE - The International Society for Optical Engineering

SP - 470

EP - 481

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - Society of Photo-Optical Instrumentation Engineers

T2 - Smart Structures and Materials 1997: Smart Structures and Integrated Systems

Y2 - 3 March 1997 through 6 March 1997

ER -