Integration of Numerical and Physical Simulation - Network for ...

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Integration of Numerical and Physical Simulation - Network for ...

Toward a Common Vision for NEES

Cyberinfrastucture & IT Services:

Integration of Numerical and

Physical Simulation

Gregory L. Fenves

University of California, Berkeley

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Vision without action is a dream.

Action without vision is a nightmare.

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


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Why is Simulation Important

• Engineering Knowledge:

– Improve understanding of

mechanics processes

leading to damage and

effecting system

performance.

– What happened What will

happen

• Engineering Design:

– Improve reliability of designs

– Coomunicate performance

for stakeholders

– Speed adoption of innovative

technology and systems

• Important for every other

field, ergo we must make it

important for earthquake

engineering.

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Simulation in Other ENG Fields

• Automobile crash

safety

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• Nuclear weapon

stewardship (ASCI)

• Aircraft design

with CFD

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ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Components of Simulation Strategy

Material, component,

system models

Models

Struct/Geo Engineering

Domains

Algorithms,

Solvers,

HPC

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Computation

Information

Technology

Cyberinfrastructure

Frameworks,

Databases, Visualization,

Internet/grid computation

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


The Virtuous Circle

Jeremic, UC Davis

Saiidi/Sanders, UN Reno

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Computational Simulation

Physical Simulation

Circa 1970s

1990s

Pre-NEES

Post-NEES

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Simulation Challenges in

Earthquake Engineering

• Using multiple experiments of key

components to predict life-cycle performance

of innovative structural/foundation systems.

• End-to-end simulation and visualization of

earthquake scenario in an urban region.

• Design nuclear power plant system for longrecurrence

period earthquakes, accidents,

and man-made attack.

• Long-term monitoring and performance

evaluation of constructed facilities.

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Steps for Simulation in NEES

• Define long term goals of NEES. What do we

want to have accomplished in 10 years 20

years

• Organize long-term research agenda and

funding plans for simulation.

• Sustainability and commitment essential for

success.

• Attracting and educating students in simulation

and computing is necessary for advances in

the field.

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006


Hybrid Simulation

Physical testing is simulation

• Test smarter, not bigger

• Improve knowledge of system performance

using unique, but limited, experimental facilities

• “Bootstrap” improvements in models

ITSC Issue Forum 2006 NEES Annual Meeting June 21-23, 2006

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