Abstract：The bottom side beam of container cracked in the process of operation. The comprehensive analysis of the fractured bottom side beam of the container was carried out by means of chemical analysis，mechanicaltesting，metallo-graphic examination and fracture analysis.The results showed that the thickness of the steel plate at the Rangle corre-sponding to the crack of the bottom side beam was thinned by nearly 50% and the carrying capacity of the position was seriously reduced. At the same time，the plasticity of material was poor and during the bending process at room temperature it was likely to have cracks at the Rangle.It was then welded to further lower the toughness of the region.During the process of container operation，the container was loaded and acted upon.As the concentrated part of the stress，R angle was suddenly broken by the tensile stress.
刘龙，李南，罗志强，张晓丹. 集装箱底侧梁开裂原因分析[J]. 物理测试, 2019, 37(3): 41-47.
LIU Long， LI Nan， LUO Zhi-qiang， ZHANG Xiao-dan. Failure analysis of cracking at the bottom side beam of container. PHYSICS EXAMINATION AND TESTING, 2019, 37(3): 41-47.
2019, Vol. 37 
