Materials and Design Criteria for Kevlar-29 Ribbon Parachutes

Abstract

This report contains information and design criteria for application of Kevlar-29 (intermediate modulus para-aramid) textile materials to ribbon parachutes. Textile materials for this application are listed, their properties and limitations discussed, and methods for tensile testing presented. Twenty degree conical continuous ribbon parachute test items were designed and fabricated using Kevlar-29 textile materials entirely. The results of air drop and sled track testing at subsonic and transonic conditions are presented and design criteria based on these results are reported. The effects of reefing (two stages) on aerodynamic performance of the 15.3 ft nominal diameter parachutes is also reported. The report treats joining techniques for kevlar-29 parachute components and presents the results of tensile tests of joint samples. Design considerations and fabrication techniques related to application of Kevlar-29 materials are included. A comprehensive list of references useful to the parachute or decelerator system designer is provided.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA116357

Entities

People

  • William R. Pinnell

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Drop Tests
  • Failure Mode And Effect Analysis
  • Mach Number
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Plastic Explosives
  • Remotely Piloted Vehicles
  • Sled Tests
  • Tensile Strength
  • Tensile Testing
  • Test Facilities
  • Test Methods
  • Wear Resistance
  • Wind Tunnels

Readers

  • Aerial Delivery - Logistics and Supply Chain Management.
  • Business Analytics
  • Reinforced Composite Materials