Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing the results of fatigue tests on rubber, plotting life cycles against percentage extension and compression.

Identifier  ExFiles\Box 178\2\  img062
Date  6th March 1940
  
Ogs.P/253340
Serial 42
OSCILLATION CYCLE
200% OF UNSTRESSED LENGTH.
LIFE TEST IN KILOCYCLES
10⁵
10⁴
10³
10²
10¹
PERCENT COMPRESSION
100
PERCENT EXTENSION AT MID STROKE
100
200
300
400
500
600
FATIGUE TESTS ON RUBBER
CADWELL ASTM PAPER MAR 6/40.
  
  


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