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采用八节点等参元程序,讨论在压差加载条件下,所测缺陷大小、埋藏深度、材料性质与压差值之间的关系。试验表明,计算结果是可靠的,可为压差加载激光全息无损检测的可检范围、设备和工艺参数的选择提供参考。
The eight-node isoparametric program was used to discuss the relationship between the size of the measured defect, the depth of burial, the properties of the material and the pressure difference under the condition of pressure difference loading. The experimental results show that the calculation result is reliable and can provide reference for the checkable range of laser holographic nondestructive testing with pressure difference loading and the selection of equipment and process parameters.