Rubber is a very unique material,proper analysis of rubber components require handling the problems of geometric nonlinearity,nonlinear boundary conditions,and material nonlinearity.

All these proved the feasibility of FEA in the rubber components optimum design, and establish the foundation of optimizing the structure , compounding, moulding the rubber components, durability and new product development in the future.

Rubber materials are used extensively in many industries because of their special properties and low cost, so there is of great importance in rubber components finite element analysis.

Through the rubber components finite element analysis by examples of mechanics,heat chansfer,and fracture mechanics aspects, we found that the rubber FEA can simulate the real work condiction of rubber components, predict mechanics behavior and determine whther it is reliable or not;

A study on the fatigue life prediction and evaluation of rubber components

胶料疲劳寿命预测和评价方法的研究(英文)

Path analysis showed that the direct effect of latex yield on dry rubber yield was maxil, with a path value of P_(25)=0.5616 and next came that of yield index with a path value of P_(45)=0.3034. Both of them were the main factors of dry rubber components, thus indicating that increased dry rubber yield can be obtained byfurther tapping the rubber yielding potential through successive cultivar improvement and measures for boosting latex yield.

The fundamental theory for the FEA of rubber components is reviewed, and the experimental method for obtaining the constants of the hyperelastic material constitutive model is presented.

In this paper we systematically studied the behaviors of thermal and catalytic degradation of waste tires and the main rubber components of tires, including natural rubber (NR), polybutadiene rubber (BR) and styrene-butadiene rubber (SBR), in a batch reactor with stirring.

An analysis of five quantitative characters of 14 clones, which were planted in 1972 and identified during 1980—1983, was made with the tested data from different years as replication. The results obtained are, genetic variation was invariably lesser than phenotypic variation in the five characters; the broad sense heritability of girth growth was the highest (88·5％): phenotypic correlation coefficients were basically consistent with genotypic correlation coefficients; genotypic correlation coefficients between...

An analysis of five quantitative characters of 14 clones, which were planted in 1972 and identified during 1980—1983, was made with the tested data from different years as replication. The results obtained are, genetic variation was invariably lesser than phenotypic variation in the five characters; the broad sense heritability of girth growth was the highest (88·5％): phenotypic correlation coefficients were basically consistent with genotypic correlation coefficients; genotypic correlation coefficients between each component character and dry rubber yield were (in decreasing order) yield index(0.9451)→latex yield (0.9265)→girth growth (0.7094)→dry rubber content (-0.0222); the contribution of latex yield to genetic correlation was maximal and next came that of dry rubber yield and yield index, thus suggesting that latex yield was a vivacious character and its change might cause corresponding variation of other characters. Path analysis showed that the direct effect of latex yield on dry rubber yield was maxil, with a path value of P_(25)=0.5616 and next came that of yield index with a path value of P_(45)=0.3034. Both of them were the main factors of dry rubber components, thus indicating that increased dry rubber yield can be obtained byfurther tapping the rubber yielding potential through successive cultivar improvement and measures for boosting latex yield.

The structures of elastic driving gears made of antivibration rubber for locomotive use are briefly introduced in this paper. By means of the finite element calculation, photoelastic experiments and stiffness measurement, the forces acted on antivibration rubber components and the deformations brought about in their work conditions are analyzed. And a feasible research method for the optimum elastic rubber rollers and concerning conclusions are represented according to the comparision of their fatigue...

The structures of elastic driving gears made of antivibration rubber for locomotive use are briefly introduced in this paper. By means of the finite element calculation, photoelastic experiments and stiffness measurement, the forces acted on antivibration rubber components and the deformations brought about in their work conditions are analyzed. And a feasible research method for the optimum elastic rubber rollers and concerning conclusions are represented according to the comparision of their fatigue charactoristics and the results of operational tests.

Taking chloroprene rubber as the main rubber component with suitable fillers and softeners, glass fibre as skeleton material, and nylon elastic textile as wraping cloth, the car use synchronous belts have been developed by the authors. The title products so developed have achieved the performance index of more than 140,000 kms for total route of travel, and have won affirmations from Volkswagen.