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AN IMPROVED STRESS ANALYSIS OF AN ASCENDING BALLOON

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 5151
Amount: $49,790.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1987
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
6800 Park Ten Blvd Suite 126 East
San Antonio, TX 78213
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 () -
Business Contact
 James L. Rand
Title: Investigator
Phone: () -
Research Institution
N/A
Abstract

THIS RESEARCH ATTEMPTS TO ADVANCE THE STATE-OF-THE-ART OF BALLOON DESIGN BY DEVELOPING A METHOD TO REALISTICALLY APPROXIMATE THE STRESS LEVELS IN AN ASCENDING BALLOON. THE APPROACH WILL BE TO COMBINE EXISTING STUDIES ON ASCENT SHAPES, MATERIAL PROPERTIES, AND HEAT TRANSFER MECHANISMS TO PRODUCE A FIRST ORDER ESTIMATE OF STRESSES IN THE WALL OF A BALLOON WITH EITHER INTERNAL OR EXTERNAL CAPS. THE FACTOR OF SAFETY WHICH IS COMMONLY USED IN THE DESIGN OF ROCKET AND SATELLITE STRUCTURES WILL BE INTRODUCEDTO THE DESIGN OF BALLOONS. THE RELATIONSHIP BETWEEN THE COMPLEX MODULUS WHICH IS OBTAINED AT A FIXED FREQUENCY, AND THE RELAXATION MODULUS WHICH IS OBTAINED AT A FIXED STRAIN, WILL BE DOCUMENTED AND A METHOD DEVELOPED FOR THE INTERCHANGE OF DATA.

* Information listed above is at the time of submission. *

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