ansys release 15.0 structural mechanics...
TRANSCRIPT
© 2013 ANSYS, Inc. November 23, 2014
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Reducing Meshing Time For Assemblies
As simulations involve always more complex models made of dozens, hundreds of parts, sequentially meshing all parts is a time consuming process.
© 2013 ANSYS, Inc. November 23, 2014
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Meshing efficiency has been greatly improved to provide up to 4x serial speedup and up to 27x parallel speedup for structural models
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1015202530
14.5 15 Serial 15 Parallel (12 Cores)Speed (Normalized)
© 2013 ANSYS, Inc. November 23, 2014
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Automated hex meshing saves hours of manual work by removing the need to manually slice the geometry
© 2013 ANSYS, Inc. November 23, 2014
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Filtering helps simplify the tree view to only display necessary parts of the model
© 2013 ANSYS, Inc. November 23, 2014
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Summary table display a text summary for all results to quickly check long lists of results at once
© 2013 ANSYS, Inc. November 23, 2014
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Model Assembly Allows Reuse of Legacy Model and Building of Complex Assemblies
© 2013 ANSYS, Inc. November 23, 2014
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With R15 FE Model can be imported and combined as the starting point of a simulation
© 2013 ANSYS, Inc. November 23, 2014
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Multiple WB systems can also be combined to combine Geometry, Mesh and Named Selections
© 2013 ANSYS, Inc. November 23, 2014
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Solving the challenges of the simulation of composites products
carbon.at
americascup.com
The simulation of composites requires complex material properties, efficient processes for defining layups, orientations or draping effects as well as efficient and accurate evaluation of state-of-the-art failure criteria and through thickness results.
© 2013 ANSYS, Inc. November 23, 2014
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Sub-modeling techniques are useful to create a local 3D model of any part of a composites structure, reducing the computational cost while improving the local accuracy of the results
Global Results
SHELL
SOLID Local results
© 2013 ANSYS, Inc. November 23, 2014
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Enhanced Interlaminar Shear Stress for Solid Composites increases 3D models accuracy
Solid Stack 3 elements Layup Result (solid185)
ACP: Recomputed stresses
© 2013 ANSYS, Inc. November 23, 2014
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ANSYS Composite PrepPost now provides and easy definition of interface layers for the computation of delamination
© 2013 ANSYS, Inc. November 23, 2014
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CDM-Based Progressive Damage provides ultimate failure analysis for less conservative designs.
Start of damage (layer 1)
Progressed damage (layer 1)
Progressed damage (layer 3)
© 2013 ANSYS, Inc. November 23, 2014
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Thermal support for solid composites allows thermal induced stress calculations
Thermal solid composites are now supported in models with Imported Layered Sections.
© 2013 ANSYS, Inc. November 23, 2014
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Linking multiple physics through point cloud data
For many companies, multiphysics simulation mean transferring data from one physics to the other using text files with point cloud data. The process needs to be efficient to deal with a variety of data types, misalignment or density differences between the point cloud and the actual mesh.
© 2013 ANSYS, Inc. November 23, 2014
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Velocity Loads can be imported in a Harmonic Analysis allowing uncoupled acoustics analyses
© 2013 ANSYS, Inc. November 23, 2014
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2D to 3D submodeling allows to compute local detailed results that are not captured using a surface model
© 2013 ANSYS, Inc. November 23, 2014
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Fast method for bolt thread analysis without detailed geometry reduces computation time
True Thread Simulation Bolt Section Method
10 times faster!
σmax= 514.9 σmax= 514.8
© 2013 ANSYS, Inc. November 23, 2014
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New contact property allows the analysis of wear between sliding parts to predict the worn shape of a product
Wear
Pressure
© 2013 ANSYS, Inc. November 23, 2014
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New Proprietary Distributed Eigensolver Accelerates Computation of Eigenmodes and Frequencies
2 Mdofs - 40 modes
2.55x speed-up compared to Lanczos-Block on 8 cores
New subspace solver keeps scaling after 12 cores
Lanczos-Block does not scale above 12 cores
Model has 2.5 Mdofs - 100 modes
© 2013 ANSYS, Inc. November 23, 2014
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Mode-superposition method accelerates the computation of harmonic results for cyclic and unsymmetric models
2.1x speed-up
243864 degrees of freedom, 14 modes
© 2013 ANSYS, Inc. November 23, 2014
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Providing a robust solution for complex nonlinear problems
A robust structural simulation tool is required to address challenges posed by very large deformations of rubber seals or instabilities such as buckling of slender structures.
© 2013 ANSYS, Inc. November 23, 2014
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Nonlinear adaptive meshing help solve large deformations models by splitting the mesh in sensitive areas
© 2013 ANSYS, Inc. November 23, 2014
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Newly implemented arclength solution provides more robustness when dealing with unstable phenomena
Load versus disp
© 2013 ANSYS, Inc. November 23, 2014
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Accurately modeling the cyclic behavior of metallic parts for life prediction requires to combine hardening/softening as well as cyclic creep effects
R15 implements a solution that mixes implicit Creep with Chaboche Kinematic Hardening. Curve fitting for the kinematic hardening is also available.
© 2013 ANSYS, Inc. November 23, 2014
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Shape Memory Alloy materials can be used for beam structures, for faster modeling and computation of thin models such as stents
Beam188 Solid185
Total Solution Time BEAM188 : SOLID185=1:4
© 2013 ANSYS, Inc. November 23, 2014
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VCCT based Crack growth simulation is now supported in Mechanical to perform delamination based crack analysis
© 2013 ANSYS, Inc. November 23, 2014
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T-stress helps predict stability and whether the crack will deviate from the original plane
* Stress intensity factor K and the elastic T-stress for corner cracks L.G. ZHAO, J. TONG and J. BYRNE
© 2013 ANSYS, Inc. November 23, 2014
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General solver improvements increase scalability of structural solutions
Coupled Structures/Acoustics computation 864628 elements, 382648 nodes
© 2013 ANSYS, Inc. November 23, 2014
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New licensing simplifies the use of GPU boards as each HPC task can enable either a CPU core or a GPU socket
New policy applies to ANSYS HPC, ANSYS HPC Pack, ANSYS HPC Workgroup, and ANSYS HPC Enterprise licenses
© 2013 ANSYS, Inc. November 23, 2014
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HPC speeds-up explicit dynamics up to 10x on 16 core
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Spee
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