This paper describes the results of an experimental study of canopy stresses in bias-constructed, solid-flat parachutes. Stresses were measured in the warp and fill directions during inflation and at steady state for different values of dynamic pressure. Omega sensors were used to measure stress. These sensors were mounted along the gore centerlines so that the warp and fill stress distributions could be determined as a function of distance from the vent. It was found that stresses in the fill direction were substantially larger than stresses in the warp direction.
Bibliographical noteFunding Information:
The research reported in this paper was supported by Sandia Laboratories under Contract No. 07-4328. Ap-preciation is given to the late Dr. H. G. Heinrich of the University of Minnesota who developed the Omega sensor and pioneered stress measurements in parachutes. Thanks are also due to D. Carey, D. Reynolds, and T. Weber, students at the University of Minnesota, who participated in this research.