ANSYS Mechanical Product Family

Summary of Enhancements in R17.0

Corrado Meante

Revolutionary Release !

New ProductsMore than 250+ features

10x improvements in many areas

ELECTRONICS RELIABILITY

Reliability of chips and boards is not only about electronics and signal integrity. It is also about structural issues such as thermal induced deformations or migration of electrons from external forces.

R17 provides high automation to accurately map complex traces onto a simplified board geometry to perform any kind of structural or thermal analyses, a process that would otherwise take days.

1. Import ECAD Geometry in SCDM

2. Automated computation of material

properties from board layout

3. Compute Board/Chip deformations, stresses

or vibrations, fatigue

4. Perform Sub-Modeling for local accuracy

Board ECAD

Trace Mapping

Stresses and deformations

10X

Computation of electro-migration using coupled-physics elements helps identify potential failure zones of electronics components

0-hrs X-hrs 2X-hrs

Electro-migration (EM) causes chip failures over time

New Diffusion Analyses for coupled electric, thermal and structural

analyses

Transport Effect Supported

Soret Effect SupportedStress intensity Normalized concentration

Electric current density

Simulation results after 100 hours

GEO-MECHANICS & OFFSHORE CAPABILITIES

New material laws For Geomechanics are available to simulate footings and pilings, tunneling, excavations, soil compaction or consolidation, Masonry Structures

Mohr-Coulomb

Jointed Rock

Cam-Clay

Drucker-Prager Concrete

Porous media mechanics helps simulate oil well-bore stability, tunnel excavation or biological applications such as tissues or muscles

Fluid Flow through Porous Media

Nonlinear Material laws Support

Geo-Static Equilibrium

Initial State Support

Pore-Pressure Contact Support

Anisotropic Permeability supported

Offshore Structures Modeling

Support Irregular Waves Input

Dynamic Stability Support

Sea-bed Friction Support for Cables

Non Linear Roll Damping Support

SCDM enables faster turnaround time for beam structuresImport model into SpaceClaimReduce to beams and shellsGlobal analysis of this model

Clip Volume creates SubmodelDetailed analysis on the region

exhibiting high stress

Complex Beam members can now be quickly analyzed with User Defined Beam Cross-Sections

Define C/S in DM or SCDM

Displayed as Mesh in Mechanical

Post-processing Supported

SEALS & CONTACT MODELING

Adaptive remeshing during solution time enables more accurate seal modeling in the case of very large deformations

2D NLAD Now Supported

Localized Adaptive Remeshing

Self Contact Support

Non-Manifold Cases Support for 3D

Courtesy TIW

Adaptive meshing criterion for 2D analyses now includes element shape from maximum corner angle

In 2D analyses, Mesh criterion available in the detail view of

Nonlinear Adaptive Region

Maximum Corner Angle parameter for 2D Mesh

criterion

Initial adjustment of contact regions from morphing prevents undesired gaps and or penetration between contact surfaces to improve convergence

Mesh Morphing Approach

Close Gap and Penetration

Introduce Penetration

Stress-free mesh motion

Large gap & penetration Closed gap & penetration

Cnch, morph creating initial interference

Easy Contact definitions via General Contact Now extended to Beam-Beam

Rigid-Flex, Flex-Flex

Surface (edge)-Surface (edge), Edge-Surface, Edge-Edge

NOISE & VIBRATION

Increased exposure of harmonic analysis in Mechanical increases productivity

Cyclic Full Harmonic Available

Enforced Motion for MSUP

Frequency Dependent Loading

MSUP Harmonic supports Unlimited # of Load Steps

Full Cyclic Harmonic with Pre-

stress

Displacement Base

Excitations

Fully Frequency Dependent

Complex Loads

Spectrum & PSD Analysis is now faster and leverages parallel processing

No More Solution File Copying

Uniform Base Excitation to All Supports

RPSD Calculations Parallel

Post Enhancements

PSD Calculations

Faster

Plain journal bearings account for simple fluid film model in rotating machines

COMBI214 Enhanced to Support Reynolds Equation

Viscous, incompressible, laminar flow with Cavitation

Plain Cylindrical Journal Bearing

Squeeze Film damper application

Example large-deflection transient analysis

ADVANCED MECHANISMS MODELING

Computing rigid-flexible models with an implicit solver is time consuming. Combining explicit and implicit schemes is much faster.

Component Mode Synthesis (CMS) creates reduced flexible models to be used with the Rigid Body Dynamics solver

Generations Pass

MAPDLUse Pass

RBDExpansion

Pass MAPDL

Post Mechanical

Flexible Body

Top-Down CMS approach is available: selected bodies in the model are automatically condensed, while others are defined as rigid.

Substructuring in 1 Database

Auto-Detect Bodies to be grouped as Condensed Part

Auto-Detect interfaces for Condensed Part

Example Applications

Rigid + Flexible bodies solved together using RBD and CMS

Single Condensed Part on bearings

Link with Simplorer enables system simulation including flexible bodies

Contact is supported with RBD when linked with

SimplorerSimplorer Link with Assemblies having Deformable parts

Paddle motion is here controlled by a PID loop in Simplorer

ANALYZING FAILURE DUE TO CRACK

Crack geometries are in reality more complex than the typical penny-shaped cracks and are usually painful to model

R17 allows to use a surface of arbitrary shape to define a crack and automatically mesh it in seconds.

Accurately model Arbitrary Crack Surface

Planar and Non-Planar Cracks

Automatic Insertion of Crack in Base Mesh

10X Faster than Traditional methods

10X

All types of crack characterization quantities are now available in Mechanical for post-processing

Crack Face Pressure Supported

Body Force Load Supported

Material Force, T Stress, C* Integral Supported

Works with Regular and Arbitrary Crack

Crack propagation is generally the results of cyclic loading on the structure, requiring to perform fatigue based computations, not available until today.

With R17, users can perform 2D fatigue crack growth using XFEM

Singularity-based Method

No Re-meshing required

Paris Law based

Linear Isotropic Materials

Reference: A.C.O. Miranda et-al, “Fatigue Life and Crack Path Predictions in Generic 2D Structural Components”, Engineering Fracture Mechanics, 70, pp.1259-1279, 2003.

LAMINATE COMPOSITES MODELING

Curing induces distortion in the final geometry of a composites model. Badly manufactured parts can induce high costs.

R17 introduces a workflow to predict the final shape of a composites part after curing and provide guidance on how that part should be designed in the CAD system

10X

Residual Stresses during Cure lead to Distortion/cracking

Cure Shrinkage

Enthalpy, Tool Part interaction

WB Integrated, Coupled Thermal-Mechanical Analysis

ANSYS Composite Cure SimulationNew Product

Variability of composites material has a drastic influence on the robustness of a design and need to be accounted for in early design phases

Variation Due to Multi-Materials, Manufacturing, Finishing, Wear

etc.

NEW Variable Material Properties Support in EDA

9 Arbitrary Field Variables

NEW Excel Inteface

Complex layouts of plies can be automated using interactive layup definition in EXCEL

HIGH PERFORMANCE COMPUTING

Perform dynamics analyses >10x faster with new distributed solution

NEW Distributed Bock Lanczos Solver

PSD/Spectrum Analyses Fully Parallelized

Entire Linear Dynamics Workflow now fully

parallelized

10X

Leverage very large number of cores to speed-up you simulation –scalability on 1024 cores is unparalleled in the FEA world

DSparse Solver improved to reduce matrix factorizationIntel MPI now Default helps

ScalabilityStatic/Transient both see unmatched performance

MoldPCB

Solder balls

10X

0

100

200

300

400

500

600

0 128 256 384 512 640 768 896 1024

Solv

er R

atin

g

Number of Cores

DMP Scaling ComparisonR16.0 R17.0

MESHING, GEOMETRY, EXTERNAL MODEL

Default settings for higher quality meshes without manual work

Nonlinear Mechanical Shape Checking

Improved Narrow faces and Washers with SHELL

MeshingImproved Handling for Mid-Nodes with Hex Meshing

Standard Non-Linear

Quality 0.0322 0.0693

#Elements

18,075 19,538

# Nodes 31,621 33,942

Standard Non-Linear

BeforeR17

Match mesh feature aids accurate definition of contact interface and improves convergence

Mesh generated as separate parts

Use Contact Match controls to match mesh

Node merge can be added as second step to make

mesh conformalTet Mesh Only

Diagnostics & Performance Improved

View Connectivity by BodyShow Very Close Vertices

Better Meshing StatusMeshing on Linux

Significantly Faster

Start selecting mesh entities with a single clickNew toolbar buttons to

select nodes or elements

APDL scripts are not required anymore to generate deformed geometries based on results or create geometries from mesh

Project-based deformed geometry generation enables easy perturbation or clearance analyses

WB Schematic based Operation enables parametric updates

Export Deformed Geometry from Modal, Static systemsApply Scaling as neededSelect the Time at which Deformed Geometry is

transferred

Export STL files from geometry, mesh, results for further geometry operations and simulations

Aids 3D Printing WorkflowsBinary and ASCII form

availableFrom Geometry, Mesh,

Results

Export from ResultsExport from Geometry Export from Mesh

Import of CDB files in a WB model imports more features to minimize manual additions to model

Import Node and Element Components

Import Beam and Pipe Elements

Import Cartesian and Cylindrical CSYS

Vertex Insertion Angle Helps capture features

MAKING USERS LIFE EASIER

Named Selection enhancements give more flexibility to create selections from criteria

Body selection criterion based on Name or thickness

Select Vertices by edge connection, Nodes by

element

Worksheet View for Names Selection

Many Usability Enhancement significantly speed up workflows

Find Objects in TreeObject grouping for more

objects with visibility controlKeyboard shortcuts for

frequently used operations

F5

F7

CTRL + G

Graphical enhancements make it easy to inspect complex models

Cap Sliced view

Color by Material

Quickly verify element orientations for nonlinear materials and composites even outside of ACP

Vector Display for Element Orientation

Define orientation using Name Selection or Interactive Picking

Also useful for Composites Ply Orientation Display

Multi-threaded calculations make display faster

Diagnostic tools help in monitoring and troubleshootingEnhanced Contact Trackers

Add Trackers during solution

Works for Local/Remote solves

Trackers Dynamically update as the solution

progresses

Context Sensitive option allows quick access to

quantities

Nonlinear analysis diagnostic tools provides solver feedback in Mechanical for easier model troubleshooting

Solver error/warning message dynamically

updated in the message window

Auto Named Selection for problem elements during a

nonlinear solveWeak Springs are now

default OFF

PACKAGING

New packaging for structural mechanics simplifies the portfolio, provides true scalability between products and increases the span of applications available to structural users

From 11 products to 5, starting February 2016

R17.0

Mechanical Enterprise Mechanical Premium Mechanical Pro

Three levels - contents

All material models

Fracture Mechanics

Composite PrepPost Transient Dynamics

Explicit Dynamics (FE Solvers)

Rigid Dynamics with flexible bodies

Substructuring

Rezoning, Birth and Death

Hydrodynamics

Full Linear Dynamics: • Harmonic • Spectrum • Random Vibrations • Linear transient • Rotordynamics

Full rate-independent plasticity & Hyperelasticity

Basic Layered composites (no ACP)

Rigid Dynamics (pure rigid)

Coupled elements & physics

Full Thermal Fatigue

Static Modal Linear buckling

Full contact & joints Nonlinear geometric effects

Check the release notes!

ANSYS Product Improvement Program (APIP)

• Understand user needs • Participation is voluntary

• “Anonymous” information sent via HTTPS

Secure Webserver

“Anonymous” Product Usage Data

Mechanical only for R17

THANK YOU