Abstract
When explosion occurs in a chemical plant, the destructive explosion pressure leads to pipe collapse and missile discharge by pieces of structures. Therefore, a disaster simulation program, which takes analysis of pipe behavior by explosion pressure into consideration, has been developed by using a personal computer. The consideration points for the computer program are as follows;(1) Three-dimensional explosion pressure applied on a pipe can be calculated based on the kind and weight of contents in the damaged tank, and can be also calculated as a function of distance from tank to pipe.(2) The mechanical behavior can be analyzed by FEM using beam elements.(3) The effects of dike height and hidden pipe region behind tanks can be calculated.(4) The computational results can be graphically shown on CRT.As an example, the effect of the height of oil dike was simulated for a model plant. The result shows that the damaged region and dangerous location of pipes can be analyzed. It is revealed that the proposed computer program is very useful for the reliability evaluation and installation of chemical plant pipes.
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