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Critical characterization of low porosity ripstop parachute canopies using smallscale impact and quasi-static loading principle

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Title Critical characterization of low porosity ripstop parachute canopies using smallscale impact and quasi-static loading principle
 
Creator Neha, Kumari
Sikka, Monica
Behera, Gyana Ranjan
 
Subject Low porosity
Parachute canopy
Ripstop
Seam angle
Impact force
Quasi-static loading
Nylon 66 fabric
 
Description 318-324
Three levels of maximum sustainable tensile impact load (400, 450 and 500 N) of a small rectangular ripstop parachute
canopy specimen stitched at a 45° seam angle have been studied manually. Using the scale-up approach, the proportionate
peak sustainable opening shock force for T10, C9, and G11 low porosity canopies have been computed subsequently. This
study also characterizes the small rectangular unseamed and seamed specimens at 0° and 45° seam angles under three levels
of a maximum sustainable range of tensile impact and quasi-static loads. The ANOVA analysis shows that the fabric seam
joining has a greater effect on the specimen’s performance than the seam angle and applied load. It is also observed that the
specimen degrades significantly more under impact load than the corresponding quasi-static load. Under quasi-static and
impact loads, the seamed specimen exhibits more strength and elongation loss than the unseamed specimen. Further, the
strength loss for the 0° seam angle is more than the 45° seam angle. The specimen with 45° seam angle exhibits better
performance under impact and quasi-static load comparably and exhibits higher loss in elongation but still has higher
breaking elongation than the specimen stitched with 0° seam angle at the same load level.
 
Date 2024-10-09T07:30:16Z
2024-10-09T07:30:16Z
2024-09
 
Type Article
 
Identifier 0975-1025 (Online); 0971-0426 (Print)
http://nopr.niscpr.res.in/handle/123456789/64701
https://doi.org/10.56042/ijftr.v49i3.12508
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJFTR Vol.49(3) [September 2024]