Accelerated life testing of packaging box under multiple environmental stresses

Abstract

To evaluate the life of a packaging box, accelerated life testing was conducted under multiple environmental stresses. Based on the potential failure mode and mechanism, sensitive stresses were determined in accelerated life testing. The method of events compression and increasing stress levels was used for accelerated life testing based on the life profile of packaging box. The test included an environmental aging test, a random vibration test, a fork transport test, an artificial dismounting test, a declivitous impact test, and a rotating edge drop test. The standard timing test statistical scheme was used to evaluate the life of packaging box. The results indicate that the lowest confidence limit of the life of a packaging box life is 9.94 year under 80% confidence level.