绪言 随着技术的发展,压力容器迅速地大型化、大容量化。因此,这些大型压力容器破坏时带来的危害也有增大的趋势。为了确保安全,必须考虑从来未曾考虑到的因素来进行设计。特别是脆性断裂,它导致迅速而大范围的破坏的可能性非常大,有关压力容器的法律或规范中都有防止脆断的各种要求。 Introduction With the development of technology, pressure vessels are rapidly becoming larger and larger. Therefore, the damage caused by the destruction of these large pressure vessels also tends to increase. In order to ensure safety, the design must take into account factors that have never been considered. In particular, brittle fracture, which leads to the possibility of rapid and widespread damage is very large, the pressure vessel laws or regulations have to prevent brittle fracture of the various requirements.