The research discovered elastomenc ligatures and elastomenc chain are biggest in the experimental initial 48 hour internal stress weaken, after load 48 hours remaining stress for about initial stress 80%.

• 研究发现结扎橡皮圈和链状橡皮圈在实验最初的48小时内应力的衰减最多,负载48小时后残余应力为初始应力的80%25左右。