FE model was used to obtain the stress distribution in bead wire of BTR tire under different inflation pressures as well as the maxium stress and the average stress in bead wire.

• 利用有限元模型计算得到各种充气压力下钢丝圈钢丝的应力分布特征,并进一步得到钢丝圈钢丝的最大应力和平均应力,它们基本上与充气压力成正比;