USA flag logo/image

An Official Website of the United States Government

Incorporation of Analysis Enhancements of a p-Element Analysis Code Required…

Award Information

Agency:
Department of Defense 		Branch:
Navy 		Award ID:
65065 		Program Year/Program:
2005 / SBIR
Agency Tracking Number:
N032-0104 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
ENGINEERING SOFTWARE RESEARCH & DEVELOPMENT, INC.
111 West Port Plaza, Suite 825 St. Louis, MO 63146 3146
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2005
Title: Incorporation of Analysis Enhancements of a p-Element Analysis Code Required for Implementing the Strain Invariant Failure Theory
Agency / Branch: DOD / NAVY
Contract: N68335-05-C-0021
Award Amount: $1,499,309.00
 

Abstract:

Historically, the correlation between predicted failure and actual failure of composite aircraft structures has left much to be desired. Current analytical prediction methods often over estimate or under estimate the failure load by 25% or more. Compounding the problem is that the failure of composite structure has led to a lengthy and costly, test-based certification process. A relatively new failure theory for composites, the Strain Invariant Failure Theory (SIFT), is proving to be far more accurate at predicting failure. SIFT in conjunction with a robust finite element analysis (FEA) tool offer an efficient method aimed at streamlining the design certification process for laminated composite structures. Phase 1 activities demonstrated proof of concept that the following features can be implemented into a p-element FEA code. - General Shell element with a transition to a 3D solid element - Laminated orthotropic material properties that follow a general curvature. - 2D & 3D Contact element and a 3D Fastener element. Phase 2 activities will fully develop these features and enable their use in a production environment.

Principal Investigator:

Randy Dennison
Sr. Project Engineer
3149830649
randy.dennison@esrd.com

Business Contact:

Barna Szabo
President / CEO
3149830649
barna.szabo@esrd.com
Small Business Information at Submission:

ENGINEERING SOFTWARE RESEARCH & DEVELOPM
10845 Olive Blvd., Suite 170 St. Louis, MO 63141

EIN/Tax ID: 431517896
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No