TECHNOLOGICAL ENGINEERING
volume XIII, number 1/2016
ISSN 2451 - 3156
DOI: 10.2478/teen-2016-0010
DESIGN AND VERIFYING OF COMPOSITE MATERIALS
IN ANSYS ENVIRONMENT
1Matúš
Čuma - 1Jozef Török - 1Monika Telišková
1Faculty
of manufacturing technologies with seat in Presov
Technical University of Kosice, Slovakia
Abstract
This paper deals with composite materials design in
ANSYS environment followed by verifying of these new
materials using analysis included in ANSYS Workbench
software.
Keywords
composite materials, ANSYS,
composite materials design
ANSYS
composite,
1 INTRODUCTION
Composite materials belongs to modern materials but
concerns about using, not much universal. Usually they are
designed for specific objective. We acquire composite
material with the combination of two or more from each
other different components (phases) with better thermal,
physical, chemical and electrical properties as individual
phases. Element that characterizes composite materials
is so-called "synergism" which causes the resulting values
of primary properties are higher than the summary of
individual components properties. The main advantage of
synergism is that we acquire new, better and higher
quality materials. [1]
2 COMPOSITE MATERIALS DESIGN PRINCIPLES IN
ANSYS
ANSYS Composite PrepPost is a specialized tool for
sample preparation and evaluation of composite
structures results. It works as an additional module for
ANSYS Professional, ANSYS Structural or ANSYS
Mechanical. Program ANSYS Composite PrepPost is fully
integrated in ANSYS Workbench platform. This
combination allows effective designing of not only
individual composite parts but also of complex
assemblies where the composite part is combined by
parts of other materials, such as composite tank shell with
steel flanges. It is also possible to easily combine different
types of analysis (static, dynamic, temperature, ...),
including multi physical analysis. ANSYS Composite
PrepPost can be included into parametric optimization by
the ANSYS DesignXplorer tool.
Article history:
Received 30.4.2016
Accepted 12.9.2016
Available online 10.10.2016
• prediction of fibre vector change during free
positioning on form surface,
• definitions summary of individual layers,
• groupment of material layers into logical units
(bulks),
• layer visualization in cross-section view of the part,
• analysis summary of composite material properties
at specific locations,
• 3D volume massing of model from shell model,
• evaluation of load capacity according to maximal
deformation ratio, maximal stresses, Tsai-Wu, TsaiHill, Hashin, Puck, LaRC, Cuntze, Sandwich Failure
Wrinkling a Failure Core,
• stress and load results in individual layers,
• common criteria results of load (worst criteria in
most stressed layer)
Basis for analysis and production is geometry of
assembly surfaces of composite structures. At this
geometry and FE basis are applicated boundary
properties and composite definitions for model in
ACP(Pre) mode. After processing is ACP(Post) mode used
for evaluating of design and composite material
properties. In case of imperfect design or an error in
material, geometry or composite material must be
corrected following by another evaluation. In ACP(Pre)
module are defined following steps, definition of material,
fibres, layers, parts (Fig. 1,2). [2,3]
Significant program properties:
• specific evaluation tool of composite structures,
• integrated in ANSYS Workbench environment,
• easy manageability and high productivity,
• easy definition of real fibre vectors even for more
complex geometries,
Figure 1 Design process in ACP module, which has 5
steps
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Figure 2 Definition of new composite material, its layers
and layout, definition of sub laminates (layers) and
definition of layers properties
[1]
W. G. Ehrenstein: Polymerní
materiály, Scientia, 2009,
kompozitní
[2]
Cuntze R, Freund A. The predictive capability of
failure mode concept-based strenght criteria
for multidirectional laminates. Comp. Sci.
Technolog. 64 (2004). 343-377
[3]
ANSYS WORKBENCH [On-line].
<http://www.padtinc.com/products/software/a
nsys/structural-mechanics/ansyscompositeprep
post-acp.html>
[4]
ANSYS Composite PrepPost User Guide [On-line].
<http://148.204.81.206/Ansys/150/ANSYS%2
0Composite%20PrepPost%20Users%20Guide.p
After solving complete scheme of the project last module
ACP(Post) is added to scheme, in which is the verification
of created composite material executed from ACP(Pre)
module (Fig.3).
Figure 3 Complete scheme of project for verification of
new composite material
By inserting module ACP(Post) we acquire complete
scheme of the project. For verification of fibres it is
necessary to create a definition for failure criteria. Adding
a stress we are able to recognise, which fibre has the
highest risk of failure (Fig. 4). [4]
Figure 4 Divergence of fibre under stress
3 Conclusions
The goal of this paper was to describe the process of
composite material design with module ACP included in
ANSYS Workbench and its verification with standard
ANSYS analysis. ACP module of ANSYS represents a
strong tool for composite material designing and also
provides a possibility to define its structure, individual
phase properties and verification of final properties. It
also provides a possibility to identify the weakest layer
of complex composite material.
References
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