Computational simulation of nonlinear structures




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COMPUTATIONAL SIMULATION OF NONLINEAR STRUCTURES


Proposal to National Science Foundation - NSF97-120


Submitted September 8, 1997


Avi Singhal, Julia Muccino and Han Zhu

Department of Civil Engineering

College of Engineering & Applied Sciences

Arizona State University

Tempe, Arizona 85287-5306

e-mail: avi.singhal@asu.edu


PROPOSAL SUBMITTED TO

NATIONAL SCIENCE FOUNDATION


  1. Name and address of Institution: Office of Research and Creative Activities

Arizona State Universtiy

Box 871603

Tempe, AZ 85287-1603


  1. Type of Organization: Educational




  1. Title: Computational Simulation of Nonlinear Structures




  1. This proposal is submitted pursuant to the NSF Guide to Programs, NSF97-120




  1. Funding requested from NSF: Year 1-$117,614; Year 2-$124,016; Year 3-$41,995: TOTAL -$283,625.




  1. Duration of effort: 10/1/97-3/31/2000 (Two and a half years)


7. Principal Investigator: Dr. Avi Singhal

Co-Principal Investigators: Dr. Julia Muccino, and Dr. Han Zhu

Department: Civil Engineering


Area Code/Phone #: (602)965-6901 Fax #: (602)897-0167


  1. Business Personnel: Ms. Lori Gabriel

Sponsored Projects Officer

Office of Research and Creative Activities

Arizona State University

Box 871603

Tempe, Arizona 85287-1603


  1. Authorized University Official



___________________________ Date of Submission: 9.8.97

Janice D. Bennett, Director

Office of Research and Creative Activities


COMPUTATIONAL SIMULATION OF NONLINEAR STRUCTURES


SUMMARY SHEET


Principal Investigators: Dr. Avi Singhal, P.E., Professor Department of Civil Engineering Tel: (602) 965-6901

Fax: (602) 727-6192

Email: avi.singhal@asu.edu


Co-Principal Investigator: Dr. Julia Muccino, Assistant Professor

Tel: (602) 965-0598


Co-Principal Investigator: Dr. Han Zhu, Assistant Professor

Tel: (602) 965-2645


Administrative Officer: Ms. Lori Gabriel

Sponsored Project Officer

Office of Sponsored Projects

Tel: (602) 727-6527

Fax: (602) 965-0649


Proposed Period: 10/1/97 - 3/31/00


Type of Award: Grant

(No Profit)


PROJECT SUMMARY


MODELING AND SIMULATION OF NONLINEAR STRUCTURES


The focus area of this research is to improve and expand fundamental computational mechanics knowledge in the areas of nonlinear, large deformation behavior of structures subjected to quasi-static and dynamic loadings. The shift from test base to simulation base design environment requires accurate, robust, and efficient computer codes, which model large displacements and length and time-scale mechanics. For challenging engineering simulation problems, this research employs advanced concepts in solid mechanics by using new fundamental equations for structures undergoing nonlinear large displacement. Effects of large displacement, and large rotations are included in the compatibility equations. New algorithms will be developed which will be robust, reliable, efficient and scalable on parallel computing platforms. The results from this analysis will be compared with actual data already obtained from the experiments. Such a comparison will validate and otherwise support the development of above computational technology.


TABLE OF CONTENTS


Page

PROJECT SUMMARY 6


TABLE OF CONTENTS 7


PROJECT DESCRIPTION 8


PRESENT METHODS 9


ACCURACY OF MULTI VALUE METHODS 10


DEFICIENCIES IN PRESENT COMPUTATION CAPABILITY 10


PROPOSED OBJECTIVES 10


SCIENTIFIC APPROACH 11


PROPOSED TASKS 13


BIBLIOGRAPHY 14


FACILITIES AVAILABLE 15


PRINCIPAL INVESTIGATOR AND STAFF 15


MANAGEMENT PLAN 16


TIME SCHEDULE 16


BIOGRAPHICAL SKETCH 17


BUDGET 21


AUTHORIZATION FOR SANDIA LAB 24

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