Consolidation behaviour during manufacture of adapted piezoceramic modules for functional integrated thermoplastic composite structures

2011 ◽  
Vol 102 (8) ◽  
pp. 1021-1026
Author(s):  
Werner Hufenbach ◽  
Maik Gude ◽  
Niels Modler ◽  
Thomas Heber
Keyword(s):  
Composite Structures ◽  
Thermoplastic Composite

Numerical Simulation of Thermoplastic Composite Material by ANSYS

2011 ◽  
Vol 279 ◽  
pp. 181-185 ◽  
Author(s):  
Guo Hua Zhao ◽  
Qing Lian Shu ◽  
Bo Sheng Huang
Keyword(s):  
Numerical Simulation ◽  
Composite Material ◽  
Composite Structures ◽  
Material Model ◽  
General Purpose ◽  
Thermoplastic Composite ◽  
Finite Element Code ◽  
Peek Composite ◽  
Test Result ◽  
Good Agreement

This paper proposes a material model of AS4/PEEK, a typical thermoplastic composite material, for the general purpose finite element code—ANSYS, which can be used to predict the mechanical behavior of AS4/PEEK composite structures. The computational result using this model has a good agreement with the test result. This investigation can lay the foundation for the numerical simulation of thermoplastic composite structures.

Linear Two-Port Model of an Active Thermoplastic Composite Structure

2013 ◽  
Author(s):  
Anja Winkler ◽  
Uwe Marschner ◽  
Eric Starke ◽  
Niels Modler ◽  
Wolf-Joachim Fischer ◽  
...  
Keyword(s):  
Composite Structure ◽  
Manufacturing Process ◽  
Composite Structures ◽  
Matrix Material ◽  
Manufacturing Technology ◽  
Experimental Results ◽  
Thermoplastic Composite ◽  
Starting Point ◽  
Modal Behavior ◽  
Active Composite

This paper describes new active composite structures based on thermoplastic matrices which contain material homogeneous embedded piezoceramic modules. Starting point is the development of novel thermoplastic compatible piezoceramic modules, so called TPMs. By the utilization of the same matrix material for the composite structure and for the TPM carrier films, these modules afford an opportunity to become directly embedded into the component during its manufacturing process. In this context, the manufacturing technology of the TPMs and of the active composite structure is presented. Furthermore, selected test samples are investigated concerning their modal behavior. Based on the determined characteristics a linear two-port model is used for the reproduction of the experimental results.

Dual polymer bonding of thermoplastic composite structures

1991 ◽  
Vol 31 (7) ◽  
pp. 526-532 ◽  
Author(s):  
A. J. Smiley ◽  
A. Halbritter ◽  
F. N. Cogswell ◽  
P. J. Meakin
Keyword(s):  
Composite Structures ◽  
Thermoplastic Composite

scholarly journals Process Chain Modelling and Analysis for the High-Volume Production of Thermoplastic Composites with Embedded Piezoceramic Modules

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
W. Hufenbach ◽  
M. Gude ◽  
N. Modler ◽  
Th. Heber ◽  
A. Winkler ◽  
...  
Keyword(s):  
Composite Structures ◽  
Continuous Process ◽  
High Volume ◽  
Thermoplastic Composite ◽  
Thermoplastic Composites ◽  
Process Chain ◽  
Widespread Application ◽  
High Volume Production ◽  
Volume Production ◽  
Functional Components

Active composite structures based on thermoplastic matrix systems are highly suited to applications in lightweight structures ready for series production. The integration of additional functional components such as material-embedded piezoceramic actuators and sensors and an electronic network facilitates the targeted control and manipulation of structural behaviour. The current delay in the widespread application of such adaptive structures is primarily attributable to a lack of appropriate manufacturing technologies. It is against this backdrop that this paper contributes to the development of a novel manufacturing process chain characterized by robustness and efficiency and based on hot-pressing techniques tailored to specific materials and actuators. Special consideration is given to detailed process chain modelling and analysis focusing on interactions between technical and technological aspects. The development of a continuous process chain by means of the analysis of parameter influences is described. In conclusion, the use of parameter manipulation to successfully realize a unique manufacturing line designed for the high-volume production of adaptive thermoplastic composite structures is demonstrated.

Experimental Investigations on Integrated Conductor Paths in Fiber-Reinforced Thermoplastic Composite Structures

2017 ◽  
Vol 742 ◽  
pp. 793-799
Author(s):  
Tony Weber ◽  
Anja Winkler ◽  
Maik Gude
Keyword(s):  
Composite Structures ◽  
Construction Material ◽  
Functional Integration ◽  
Thermoplastic Composite ◽  
Experimental Investigations ◽  
Film Material ◽  
Fiber Reinforced ◽  
Forming Process ◽  
Sensors And Actuators ◽  
Definition Of

By the benefit of functional integration the advantages of fiber reinforced plastics (FRP) as construction material can be increased due to the possibilities of integrating sensors and actuators. In Regard to the layer-by-layer definition of the wall thickness, this class of material offers a high potential for the integration of additional smart elements within the stacking and forming process. In addition to the actual integration methods of sensors or actuators, the electrical signal transmission and contacting is of great importance for smart structures. Various approaches can be followed. On the one hand, the conductor path can be defined by means of a wire and, on the other hand, the definition of conductor paths can be accomplished by functionalized films (by means of printing technology). Within this paper, experimental investigations are intended to demonstrate the suitability of screen-printed conductor paths for the press-technical transformation of FRP structures. In addition to the variation of the screen printing material and the film material, for a material-homogeneous integration, an evaluation of a corresponding selection of materials takes place with respect to the stresses derived from the deformation-technical boundary conditions.

scholarly journals Advances in Ultrasonic Welding of Thermoplastic Composites: A Review

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1284 ◽  
Author(s):  
Somen K. Bhudolia ◽  
Goram Gohel ◽  
Kah Fai Leong ◽  
Aminul Islam
Keyword(s):  
Composite Structures ◽  
Dissimilar Materials ◽  
Processing Parameters ◽  
Ultrasonic Welding ◽  
Thermoplastic Composite ◽  
Thermoplastic Composites ◽  
Pressure Amplitude ◽  
Advantages And Disadvantages ◽  
Cost Efficient ◽  
Weld Time

The ultrasonic welding (UW) technique is an ultra-fast joining process, and it is used to join thermoplastic composite structures, and provides an excellent bonding strength. It is more cost-efficient as opposed to the conventional adhesive, mechanical and other joining methods. This review paper presents the detailed progress made by the scientific and research community to date in the direction of the UW of thermoplastic composites. The focus of this paper is to review the recent development of the ultrasonic welding technique for thermoplastic composites to thermoplastic composites, and to dissimilar materials. Different ultrasonic welding modes and their processing parameters, namely, weld time, weld pressure, amplitude, type of energy directors (EDs) affecting the welding quality and the advantages and disadvantages of UW over other bonding techniques, are summarized. The current state of the ultrasonic welding of thermoplastic composites and their future perspectives are also deliberated.

Forming of Shape Memory Composite Structures

2013 ◽  
Vol 554-557 ◽  
pp. 1930-1937 ◽  
Author(s):  
Loredana Santo ◽  
Fabrizio Quadrini ◽  
Leonardo De Chiffre
Keyword(s):  
Shape Memory ◽  
Composite Structures ◽  
Room Temperature ◽  
Thermoplastic Composite ◽  
Bending Test ◽  
Core Material ◽  
Foam Core ◽  
Axial Tomography ◽  
Initial Shape ◽  
Shape Memory Composite

A new forming procedure was developed to produce shape memory composite structures having structural composite skins over a shape memory polymer core. Core material was obtained by solid state foaming of an epoxy polyester resin with remarkably shape memory properties. The composite skin consisted of a two-layer unidirectional thermoplastic composite (glass filled polypropylene). Skins were joined to the foamed core by hot compression without any adhesive: a very good adhesion was obtained as experimental tests confirmed. The structure of the foam core was investigated by means of computer axial tomography. Final shape memory composite panels were mechanically tested by three point bending before and after a shape memory step. This step consisted of a compression to reduce the panel thickness up to 60%. At the end of the bending test the panel shape was recovered by heating and a new memory step was performed with a higher thickness reduction. Memory steps were performed at room temperature and 120 °C so as to test the foam core in the glassy and rubbery state, respectively. Shape memory tests revealed the ability of the shape memory composite structures to recover the initial shape also after severe damaging (i.e. after room temperature compression). Compressing the panel at a temperature higher than the foam resin glass transition temperature minimally affects composite stiffness.

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