Production & Quality
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DSTDP poor fatigue resistance
Fenómeno do problema
DSTDP product fatigue life <10⁴ cycles, below the 10⁵ cycles requirement
Análise das causas
DSTDP elastic recovery insufficient, plastic deformation accumulates each cycle; crosslinking degree on the low side, fatigue crack propagation fast
Solução
1) Increase crosslinking degree to improve recovery and reduce accumulated deformation; 2) select high molecular weight grades to raise the fatigue threshold; 3) product design to reduce stress concentration
Conclusão principal
Poor fatigue resistance is caused by insufficient recovery and fast crack propagation; increasing crosslinking is key
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