A FEASIBILITY STUDY OF IMPACT SURFACE PRESSURE GUAGING WITH DYE-FILLED MICROCAPSULES

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.

• Corporate Authors:

  Southwest Research Institute

  Department of Automotive Research
  San Antonio, TX  United States 
• Authors:
  • Astelford, W J
  • Somerville, G R
  • Schuetze, C F
  • Hemion, R H
• Publication Date: 1973-11

Media Info

• Pagination: 90 p.

Subject/Index Terms

• TRT Terms: Anthropometry; Automobiles; Composite materials; Computer programs; Crash tests; Dyes; Dynamic loads; Feasibility analysis; Instruments for measuring loads or pressure; Laminates; Measurement; Pressure; Pressure gages; Reliability
• Identifier Terms: U.S. National Highway Traffic Safety Administration
• Old TRIS Terms: Nhtsa; Pressure measurement; Pressure sensors
• Subject Areas: Research; Safety and Human Factors;

Filing Info

• Accession Number: 00051646
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SWRI-AR-910 Final Rpt
• Contract Numbers: DOT-HS-024-2-490
• Files: NTIS
• Created Date: Apr 5 1974 12:00AM