6
© 2014 ANSYS, Inc. March 25, 2014 1 ANSYS Confidential Composite Materials Structures Applications
© 2014 ANSYS, Inc. March 25, 20141 ANSYS Confidential
Composite Materials
Structures Applications
© 2014 ANSYS, Inc. March 25, 20142 ANSYS Confidential
Summary
Design Impact
ANSYS Structural Mechanics provides the most productive
set of tools for accurate analysis of composite products.
• High Strength
• Low Weight
Composite Materials
© 2014 ANSYS, Inc. March 25, 20143 ANSYS Confidential
Application Example
Composite Materials
• Objective: Low Weight
– Develop an exciting and modern sports cars, the KTM X-Bow, using a monocoque made from carbon composites materials so the external skin provides the vehicle’s structural support.
• ANSYS Solution
– Use ANSYS Composite PrepPost to model and analyze the composites monocoque.
– Analyze different possible layups, fiber orientations and composites materials.
– Analyze the failure behavior of the composites design under different load scenarios.
• Value of Simulation
– KTM Technologies reduced the weight of the composites monocoque by 20 percent using ANSYS simulations.
© 2014 ANSYS, Inc. March 25, 20144 ANSYS Confidential
Application Example
Composite Materials
• Objective: Low Weight
– Reduce aircraft weight by employing lighter composite materials for the load introduction rib (LIR) of an aircraft’s wing flap.
• ANSYS Solution
– ANSYS Composite PrepPost modeled the composite layup. This innovative approach allows modeling composites by building up plies in the same way that they are manufactured.
– The post-processing capabilities of ANSYS Composite PrepPost allowed evaluation of failure criteria, including transverse shear stresses and interlaminar normal stresses.
• Value of Simulation
– ANSYS Composite PrepPost provided simple pre- and post-processing of composite designs within ANSYS Workbench, significantly reducing modeling times - allowed time savings of up to 65 percent.
© 2014 ANSYS, Inc. March 25, 20145 ANSYS Confidential
Application Example
Composite Materials
• Objective: High Strength
– Take into account a large number of characteristics, including strength, stiffness, weight, durability, ease of manufacture, type of bike and rider preference.
• ANSYS Solution
– Composite PrepPost software provides innovative modeling and analysis capabilities
– Identify critical areas along with the load case for which failure might occur from state-of-the-art failure criteria and layer-wise analysis
• Value of Simulation
– The stiffness and resistance characteristics of fiber-reinforced bicycle components can be optimally adapted to meet design requirements; design efficiency is significantly improved. Compared to typical trial-and-error development methods used in the bicycle industry, the number of cost- and time-intensive physical prototypes was greatly reduced.
© 2014 ANSYS, Inc. March 25, 20146 ANSYS Confidential
ANSYS Advantages
Composite Materials
• A pre-processing tool with a workflow close to the actual manufacturing process to easily define the most complex layups
• Seamless integration of composites parts in larger assemblies through ANSYS Workbench
• Broad range of failure criteria as well as progressive damage and delamination techniques for ultimate failure analysis
• Accurate 3-D stresses evaluation from 2-D models and submodeling techniques
• Scripts and automated model updates to easily investigate design variations
