Siemens TW 701 Series - Manuals

Siemens TW 701 Series – User Manual in PDF format online.

Manuals:

User Manual

User Manual Siemens TW 701 Series

Summary

Page 2 - Overview of Nonlinear Analysis

Unrestricted © Siemens AG 2013 All rights reserved. Page 2 Siemens PLM Software Who am I? Overview of Nonlinear Analysis Comparison of the NX Nastran Nonlinear and NX Nastran Advanced Nonlinear Solvers Nonlinear Material Models Comparison of Results –Basic vs. Advanced Nonlinear NX Nastran Basic Non...

Page 3 - Technical Marketing; About Your Presenter

Unrestricted © Siemens AG 2013 All rights reserved. Page 3 Siemens PLM Software Principal Applications Engineer with the Femap Product Development Group of Siemens PLM Software 31 years experience in the PLM Software industry • Pre-sales • Technical Marketing • Product Management Aerospace Industry ...

Page 4 - What Defines Nonlinear Analysis

Unrestricted © Siemens AG 2013 All rights reserved. Page 4 Siemens PLM Software What Defines Nonlinear Analysis Material Nonlinearity Transient (time-dependent) loading Large displacement Contact due to • Closure or opening of large gaps • Rigid contact bodies • “Double-sided” contact • Edge to Edge...

Page 5 - Capability

Unrestricted © Siemens AG 2013 All rights reserved. Page 5 Siemens PLM Software NX Nastran Basic Nonlinear vs.NX Nastran Advanced Nonlinear Capability NX Nastran Basic Nonlinear NX Nastran Advanced Nonlinear Large Strain (> 10%) -  Linear Elastic Material   Elasto-plastic Material   Plastic ...

Page 6 - Nonlinear Material Models; Isotropic; Nonlinear; Define Material; Nonlinearity Type; Hyperelastic

Unrestricted © Siemens AG 2013 All rights reserved. Page 6 Siemens PLM Software Nonlinear Material Models For Isotropic materials, select the Nonlinear tab in the Define Material dialog box • Specify the Nonlinearity Type and their parameters Hyperelastic materials are designated by setting the Type...

Page 7 - Linear Elastic Material; No strain hardening

Unrestricted © Siemens AG 2013 All rights reserved. Page 7 Siemens PLM Software Linear Elastic Material No strain hardening • Used only for Isotropic materials. • Define with a vs. Stress OR a Stress vs. Strain Function

Page 8 - Elasto-Plastic Material

Unrestricted © Siemens AG 2013 All rights reserved. Page 8 Siemens PLM Software Elasto-Plastic Material Basic assumptions: • Von Mises yield condition • Isotropic, kinematic or mixed hardening • Bilinear or multi-linear stress-strain curves • Thermal strains can be included This material can be used...

Page 9 - Nonlinear Plastic Material; Strain hardening; Initial Yield Stress, Yield Criterion; and; Function Dependence; or

Unrestricted © Siemens AG 2013 All rights reserved. Page 9 Siemens PLM Software Nonlinear Plastic Material Strain hardening Specify Initial Yield Stress, Yield Criterion and Function Dependence ( vs. Stress or Stress vs. Strain Function)

Page 10 - NX Nastran Plasticity Test Model; Applied Tension Load = 2 MegaN

Unrestricted © Siemens AG 2013 All rights reserved. Page 10 Siemens PLM Software NX Nastran Plasticity Test Model Simple Test Coupon Meshed with Hex Elements • Applied Tension Load = 2 MegaN Generic Carbon Steel Material • E = 200,000 Mpa • Yield Stress = 472 MPa

Page 13 - NX Nastran Basic Nonlinear; Analysis; Settings; Basic

Unrestricted © Siemens AG 2013 All rights reserved. Page 13 Siemens PLM Software NX Nastran Basic Nonlinear Analysis Settings All NX Nastran Basic Nonlinear analyses require the specification of: • Basic Iteration settings • Stiffness Updates • Output Control • Convergence Tolerances • Optional Solu...

Page 14 - Analysis Set Manager Options

Unrestricted © Siemens AG 2013 All rights reserved. Page 14 Siemens PLM Software NX Nastran Basic Nonlinear -Significant Differences in Analysis Options Analysis Set Manager Options Nonlinear Statics Nonlinear Transient Stiffened Modal – Runs a Stress- stiffened Normal Modes Analysis at the End of e...

Page 15 - SLIDE LINE; – element node connectivity must be defined correctly; GAP; – use the; Initial Gap; can

Unrestricted © Siemens AG 2013 All rights reserved. Page 15 Siemens PLM Software Contact Modeling –NX Nastran Basic Nonlinear Contact can be modeled with two (2) element types: • SLIDE LINE – element node connectivity must be defined correctly • GAP – use the Mesh > Connect > Closest Link tool...

Page 17 - GAP element is oriented with; Note how the top of the beam

Unrestricted © Siemens AG 2013 All rights reserved. Page 17 Siemens PLM Software GAP Element Example –Use of Orientation Vector and Initial Gap Distance Applied Displacement of 0 to -5 to 0 applied to the right end of the GAP element • GAP element is oriented with the X-Axis of the Global Rectangula...

Page 20 - Linear; Default is small displacement, small strain

Unrestricted © Siemens AG 2013 All rights reserved. Page 20 Siemens PLM Software Linear Nonlinear Analysis Displacement Small Small Small Large Large Strain Small Small Small Small Large NX Nastran Advanced Nonlinear Solver - Range of Analyses Default is small displacement, small strain Large strain...

Page 21 - use Advanced Nonlinear Statics

Unrestricted © Siemens AG 2013 All rights reserved. Page 21 Siemens PLM Software Which Advanced Nonlinear Solution Should You Use? In general, use Advanced Nonlinear Statics or Advanced Nonlinear Transient • Use Advanced Nonlinear Transient if inertia effects are important – otherwise use Advanced N...

Page 22 - Advanced Nonlinear Explicit Notes; Plane strain and axisymmetric elements

Unrestricted © Siemens AG 2013 All rights reserved. Page 22 Siemens PLM Software Advanced Nonlinear Explicit Notes Several NX Nastran elements supported for Sol601 are not supported in Sol701: • Plane strain and axisymmetric elements • Higher-order elements parabolic elements are also not supported ...

Page 23 - Connection Property

Unrestricted © Siemens AG 2013 All rights reserved. Page 23 Siemens PLM Software NX Nastran Advanced Nonlinear -Setting Connection Properties To set the Connection Property for Advanced Nonlinear problems involving contact, you will need to select either the NX Adv Nonlin tab or the NX Explicit tab ...

Page 24 - Advanced Nonlinear Connection Regions; Both regions can be modeled with either Surfaces or Element Faces

Unrestricted © Siemens AG 2013 All rights reserved. Page 24 Siemens PLM Software Advanced Nonlinear Connection Regions Advanced Nonlinear supports both flexible and RIGID Connection Regions: • Both regions can be modeled with either Surfaces or Element Faces • Correct specification of positive or ne...

Page 25 - Rigid Connection Regions; Femap requires the assignment of a

Unrestricted © Siemens AG 2013 All rights reserved. Page 25 Siemens PLM Software Rigid Connection Regions RIGID regions require a Reference Node and can only have Enforced Displacement or Enforced Rotation loads applied to the Reference Noden RIGID regions internally are treated as surfaces, therefo...

Page 30 - Examples and References

Unrestricted © Siemens AG 2013 All rights reserved. Page 30 Siemens PLM Software Examples and References Femap Examples for NX Nastran Nonlinear: • Example 25: Plastic Deformation of Rod - Nonlinear Material • Example 26: Gap Contact - Cantilever Beam • Example 27: Large Deformation – Cantilever Bea...