40 Composite materials

Change from uniform to composite (multiple) materials.
  • Bicycle tyre cross-section: rubber tread, recycled-rubber puncture-proof layer, textile carcass and steel beads - each material serving a distinct function.
  • Composite epoxy resin/carbon fiber golf club shafts are lighter, stronger, and more flexible than metal. Same for airplane parts.
  • Fiberglass surfboards are lighter and more controllable and easier to form into a variety of shapes than wooden ones.
  • Reinforced concrete: steel bars handle tension while concrete handles compression.
Principe 40 : Bicycle tyre cross-section: rubber tread, recycled-rubber puncture-proof layer, textile carcass and steel beads - each material serving a distinct function.


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Is this TRIZ principle frequently used?

This principle is rarely used with 95 instances in the matrix.

This principle is proposed to solve the following contradictions:

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1/7 1/11 1/12 1/14 2/13 3/27 4/2 4/6 5/14 6/14 6/26 6/27 6/31 6/32 7/1 7/27 7/31 7/32 8/13 9/11 10/12 10/23 10/30 11/1 11/13 11/14 12/1 12/10 12/14 12/27 12/29 13/2 13/8 13/11 13/23 13/31 13/39 14/1 14/2 14/5 14/6 14/11 14/12 14/17 14/23 14/33 14/37 15/26 15/29 16/4 16/17 16/27 16/30 17/7 17/14 17/16 21/12 23/1 23/10 23/13 23/14 23/30 26/6 26/13 26/15 26/27 26/31 27/1 27/6 27/16 27/26 27/30 27/31 27/33 27/37 29/12 29/15 30/16 30/23 30/27 30/36 30/37 31/6 31/7 31/10 31/13 31/27 32/6 32/7 33/14 33/27 36/30 37/10 37/27 39/12


The colour indicates the ranking of the proposed principle to solve the contradiction: 1st, 2nd, 3rd, 4th.
This ranking reflects the frequency of occurrence of the principle in the analysed patents for this type of contradiction.
When a principle appears in first position, it means that it is statistically the most used in the patents studied for this type of problem.

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