Journal ArticleDOI
Effect of Delamination on Active Constrained Layer Damping of Smart Laminated Composite Beams
M. C. Ray,J. N. Reddy +1 more
Reads0
Chats0
TLDR
In this paper, a finite element model has been derived to formulate the dynamics of the composite beams integrated with a patch of ACLD treatment and a piece of piezoelectric film acting as a distributed sensor with and without the presence of delamination.Abstract:
An ove lw ork demonstrates the effect of delamination in smart laminated composite beams on the performance of active constrained layer damping (ACLD) treatment. A finite element model has been derived to formulate the dynamics of the composite beams integrated with a patch of ACLD treatment and a patch of piezoelectric film acting as a distributed sensor with and without the presence of delamination at different locations. Frequency response functions of the beams have been examined to observe the effect of delamination on the performance of ACLD treatment. It has been observed that the ACLD treatment improves the active damping characteristics of the beams, even in the presence of delamination, and that the responses of the beams are sensitive to the variation of the location of delamination. The responses due to active constrained layer damping presented may provide a useful guide to detect the presence of delamination in smart composite beams by the use of the existing numerical techniques.read more
Citations
More filters
Journal ArticleDOI
Vibration of Delaminated Composite Laminates: A Review
Christian N. Della,Dongwei Shu +1 more
TL;DR: In this article, a survey on various analytical models and numerical analyses for free vibration analysis of delaminated composites is presented, and a basic understanding of the influence of the delamination on the natural frequencies and the mode shapes of composite laminates is presented.
Vibration control of adaptive structures : modeling, simulation and implementation of viscoelastic and piezoelectric damping technologies
TL;DR: Tese de doutoramento. Faculdade de Engenharia Mecânica as mentioned in this paper, Porto, Portugal, Brazil, USA, USA. 2008.
Journal ArticleDOI
Nonlinear dynamic response of piezoelectric elasto-plastic laminated plates with damage
Y.P. Tian,Yiming Fu,Yi Wang +2 more
TL;DR: Based on the elasto-plastic mechanics and continuum damage theory, a yield criterion that is related to the spherical stress tensor is proposed to describe the mixed hardening of damaged orthotropic materials, and the dimensionless form of which is isomorphic with the Mises criterion for isotropic materials as mentioned in this paper.
Journal ArticleDOI
Performance of piezoelectric fiber-reinforced composites for active structural-acoustic control of laminated composite plates
M. Chandra Ray,J. N. Reddy +1 more
TL;DR: A finite element model is developed for the laminated composite plates integrated with the patches of ACLD treatment to describe the coupled structural-acoustic behavior of the plates enclosing an acoustic cavity.
Journal ArticleDOI
A coupled efficient layerwise finite element model for free vibration analysis of smart piezo-bonded laminated shells featuring delaminations and transducer debonding
TL;DR: In this paper, a computationally efficient multifield finite element (FE) model for accurate analysis of smart composite and sandwich shells equipped with piezoelectric patch actuators and sensors, featuring multiple delaminations and transducer debonding, is presented.
References
More filters
Journal ArticleDOI
Use of piezoelectric actuators as elements of intelligent structures
Edward F. Crawley,Javier de Luis +1 more
TL;DR: In this paper, a scaling analysis is performed to demonstrate that the effectiveness of actuators is independent of the size of the structure and evaluate various piezoelectric materials based on their effectiveness in transmitting strain to the substructure.
Journal ArticleDOI
Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam
Thomas Bailey,James E. Hubbard +1 more
TL;DR: In this article, an active vibration damper for a cantilever beam was designed using a distributed-parameter actuator and distributedparameter control theory, and preliminary testing of the damper was performed on the first mode of the beam.
Journal ArticleDOI
Distributed piezoelectric sensor/actuator design for dynamic measurement/control of distributed parameter systems: A piezoelectric finite element approach
Horn-Sen Tzou,C.I. Tseng +1 more
TL;DR: In this paper, a new structure (shell or plate) containing an integrated distributed piezoelectric sensor and actuator is proposed, where the distributed sensing layer monitors the structural oscillation due to the direct PDE and the distributed actuator layer suppresses the oscillation via the converse PDE.
Journal ArticleDOI
Performance of an active control system with piezoelectric actuators
Amr M. Baz,S. Poh +1 more
TL;DR: In this article, a modified independent modal space control method is employed to select the optimal location, control gains, and excitation voltage of the piezoelectric actuators, which minimizes both the vibration amplitudes of the beams to which these actuators are bonded and the input control effort needed to suppress these vibrations.
Journal ArticleDOI
Damage detection in composite materials using frequency response methods
TL;DR: In this paper, the authors present an experimental and analytical survey of candidate methods for the in situ detection of damage in composite materials, including modal analysis techniques applied to graphite/epoxy specimens containing representative damage modes.