CosmosXpressPresentation

8/8/2019 CosmosXpressPresentation

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Box Beam Section Properties


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Specify Material

Watch Out!

There is a bug in SW2005(and earlier) that causes

CosmosXpress to sometimesforget the component

material designation


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Define Restraints

Both ends of beamrigidly restrained.


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Apply Load

1,000 lb load evenlydistributed along

top surface of beam


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Stress Solution

Hand Calculation = 1,278 psi


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Deflection Solution

Hand Calculation = 0.019 inches


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Simulating Point Loading

Addloading

pad


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Apply Load

1,000 lb pointload applied at

center mid-span ontop face of beam


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Stress Solution


Ignore local stressconcentration at load

application point


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Deflection Solution



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Simulating Pinned Restraints

Add restraintblocks at each end


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Apply Restraints

Restrain bottoms of fictional end blocks


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Stress Solution

Ignore localstress

concentrationsat restrains



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Deflection Solution



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Evaluating Elevated or Cryo Temperatures

Select Create orEdit Material

Material Editordialog box


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Create New MaterialCustommaterial

files can be

stored incommon

library formultipleusers orstored in

same folderas model

The custommaterials

library canhave asmany

subfoldersas you wantto sort the

data

Custommaterial

names are

arbitrary.I try to

use namesthat willhelp me

remember

whatconditionswere

assumed


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Edit Material Properties

Overwritebuilt-inlibrary

values withappropriate

values forthe

temperature(400F in this

example)

Note thatproperties of

6061 Alloyin main

SolidWorksMaterialLibraryremain

unchanged(and arewrite

protected)


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Evaluate Thermal Effects

Apply New Material & Complete Analysis

Stresses & Temperatures Will be Correct forTemperature Corresponding to Properties

Create Additional Custom Material for EachTemperature of Interest

Thermal Expansion Effects are Not

CalculatedModel Must be Scaled First if Thermal

Expansion Effects Have to be Considered


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Analyzing Assemblies


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Merge Components into One Part


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Assembly Analysis

Apply Restraints & Loads and CompleteAnalysis as Usual for Single Part

Requires That All Components Are MadeFrom the Same Material (or at Least Have aSimilar Modulus of Elasticity)

Assumes That Components Are Integrally

Bonded Together at Points of Contact (NoSliding Interfaces)


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Use Screen Capture (Alt + Prt Sc) toEnhance Documentation Options

Nb1Zr Long-Term Material Properties

0.05.0

10.015.0

20.025.030.035.040.045.050.0

1000 1200 1400 1600 1800 2000

Temperature (K)

1 % C r e e p

S t r e s s

( m P a

)

10 hrs100 hrs1000 hrs10000 hrs100000 hrs

1 r Term atera Pr pert es

0.05.0

10.015.020.0

25.030.035.040.045.050.0

1000 1200 1400 1600 1800 2000

Temperature (K)

1 % C r e e p

S t r e s s

( m P a ) 10 hrs

100 hrs

1000 hrs

10000 hrs100000 hrs

Desired Design Values

Figure 3.4.3-8 Vessel Stress Analysis Use WORDPicture EditingTools to CropSolidWorks

Icons

Embed Stress& DeflectionPlots Directly

in WORDDocumentsThe Pressure vessel was evaluated for both launch loads & long-termoperating stresses using a combination of finite element and classical stress

analysis techniques. Long-term creep data derived from the SP-100 program


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Wish List

Fix Material BugPermit Reflection Boundary Conditions

Add Sliding/Pinned Restraints

Add True Assembly Capability

Date post:	10-Apr-2018
Category:	Documents
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