A Feasibility Study of Impact Surface Pressure Guaging With Dye-Filled Microcapsules.

摘要

The feasibility of using a composite sheet material comprised of dye-filled microcapsules adhered to a flexible substrate as a contact surface load or pressure sensor in vehicle occupant impact testing was investigated. The theory of filled capsule failure under axisymmetric loading was explored and optimum formulations of capsule shell/fillers developed. A unique load calibration technique was developed utilizing photometric analysis of impact test samples. The high potential of this investigative tool to supplement other measurements in impact testing was demonstrated.