sdc verifier at femto cae day
TRANSCRIPT
Structural Design Code Verifier
Fatigue calculations
SDC Verifier
www.sdcverifier.com2
Other FEM programs with FEMAP inside in version 4.0
Embedded
Separate GUI
What is SDC Verifier?
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The goal of SDC Verifier is checking structures according to standards and report generation.
Load combinations:
Standard like calculation structure
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Individual Load = single load result
Load Set = combination of loads
Load Group = envelope of set of results
Load combinations:
Add/Edit Multiple
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Import Load Sets or Load
Groups from MS Excel
Create/edit multiple Load
combinations at once.
Tools
www.sdcverifier.com6
Model recognition:
Panel Finder;
Beam Member Finder;
Joint check
Complicated Loads: Wind, Buoyancy and Tank Load;
Rule Based Selector.
Model recognition
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Section and Panel finder
Frames
Decks
Longitudinals
Example Frame 36
Model recognition
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Plate finder
Beam / Joint
finder
Weld finder
Coming in 4.0 Recognition:
Panel, Girder/stiffener and plate
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What is SDC Verifier?
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SDC Verifier calculation core
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No black box but editable
Example report
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What benefits for fatigue?
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Fatigue Check example
(mean stress correction)
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Classification
Rules based on standards:Load cycles
Fatigue: Multiple load cycles in load
groups
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Delta stresses from:
- Load set with type of loading and # cycles
- Group of load sets with # cycles
Example load cycle groups
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Make more load cycle groups
Fatigue Check example
(mean stress correction)
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For single stresses
Combined
Maximum Fatigue Damage
Classification
Rules based on standards:Load cycles
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Stress concentration at the weld
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set FAT classes using Joints
Example beam model
Classifications
Fatigue damage
Weld recognition
Weld recognition
Сlassification: Weld Quality
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Eurocode 3 /EN13001
Stress perpendicular to weld Stress parallel with weld
Fatigue resistance depends on
stress direction
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K2 K1
K1 K0
W0
Steel GradePermissible stresses zulσD(-1) for k=-1 element group 5 St 52-
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Notch group W0 W1 W2 K0 K1 K2 K3 K4
Stress
amplitude163.8 130.3 104.2 118.8 106.1 89.1 63.6 38.2
Weld classification
Example Detailed results
Weld locations
Calculated fatigue damage result
Reality check
Repair
Crack
Fatigue
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The following methods are implemented:
Crane industry like standards (take into account average stress)
F.E.M. 1.001 (is referred to a lot from offshore code Loyds LAME for example)
DIN 15018
NEN 2018
JIS B 8821
CMAA
Civil engineering like code (only stress difference)
Eurocode 3
IIW
EN 13001
Conclusions SDC Verifier
www.sdcverifier.com31
Verification of structure according to standards
Model recognition facilitates the use of a standard FEM model
Translation of FEM results in (complicated) code checking results
Complete documentation of model and results
Regenerate complete calculation procedure after model changes
Focus on engineering let SDC Verifier do the bookkeeping
Use 45 days trial to check it yourself (download SDC Verifier on
www.sdcverifier.com and request trial at [email protected]);