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PT-106
The Debate Between Stiff and Yielding Seats
David C. Viano, January 2004, 648 Pages, 22 Papers, Hardbound
$120.00


In 1967, Derwyn M. Severy and his colleagues published several SAE papers that demonstrated improvements in occupant retention with rigid (stiff) seats, sparking a debate that lasted for nearly four decades. The Debate Between Stiff and Yielding Seats presents an interesting and informative history of this debate, delving into the many questions and answers that continue to surround each of these seat types.

The Debate Between Stiff and Yielding Seats begins with new material from editor David C. Viano, explaining the key factors that allowed the debate to be resolved. The publication then analyzes the effects of stiff and yielding seats on various crash scenarios, followed by an exploration of high retention seats. Patent information, new studies, and historical information are also included, making this comprehensive collection an essential resource for any safety professional's library.

Contents include:

  • Occupant Retention and Whiplash Prevention
  • A New Generation of Yielding Seats with Perimeter Frame and High Retention
  • Overview of Seat Safety Patents
  • New and Updated Studies on Rear Crash Testing and Field Crashes
  • Reprints of SAE and AAAM Articles on Seats

Papers in: PT-106

  • 2000-01-1380 Energy Analysis of Automotive Seat Systems
  • 2003-01-0173 High Retention Seat Performance in Quasistatic Seat Tests
  • 2003-01-0180 Energy Transfer to An Occupant in Rear Crashes: Effect of Stiff and Yielding Seats
  • 2003-01-1351 Effectiveness of High-Retention Seats in Preventing Fatality: Initial Results and Trends
  • 670458 Collision Performance of the Liberty-Mutual Safety Car and a 1966 Chevrolet Sedan Compared
  • 680079 Backrest and Head Restraint Design for Rear-End Collision Protection
  • 680080 Whiplast: Tests of the Influential Variables
  • 720967 Injury Frequency and Head Restraint Effectiveness in Rear-End Impact Accidents
  • 760810 Automotive Seat Design and Collision Performance
  • 872214 Evaluation of Seat Back Strength and Seat Belt Effectiveness in Rear End Impacts
  • 912913 Occupant Protection in Rear-End Collisions: I. Safety Priorities and Seat Belt Effectiveness
  • 912914 Occupant Protection in Rear-End Collisions: Ii. the Role of Seat Back Deformation in Injury Reduction
  • 922521 Influence of Seatback Angle on Occupant Dynamics in Simulated Rear- End Impacts
  • 922522 Restraint of a Belted Or Unbelted Occupant By the Seat in Rear-End Impacts
  • 930340 Automotive Seat Design Concepts for Occupant Protection
  • 930346 Field Accident Evaluations and Experimental Study of Seat Back Performance Relative to Rear-Impact Occupant Protection
  • 930348 Safety Performance of Motor Vehicle Seats
  • 941055 Response of Out-Of-Position Dummies in Rear Impact
  • 962434 Effect of Seat Stiffness in Out-Of-Position Occupant Response in Rear-End Collisions
  • 973343 Relationships Between Passenger-Car Seat Back Strength and Occupant Injury Severity in Rear-End Collisions: Field and Laboratory Studies