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一、概述 1965年美国塑料工业协会(SPI)制订了一个玻璃钢产品规范,后被颁布为商业部标准PS15—69《接触模压增强聚酯耐化学介质设备》。其基本理论依据和它推荐的设计方法均套用传统的金属强度理论,即按强度准则进行“等代设计”。但玻璃钢是各向异性材料,它的设计理论应以其特殊破坏机理为基础。由于它的初始破坏并不是强度破坏,所以金属的强度理
I. Overview 1965 American Plastics Industry Association (SPI) developed a FRP product specifications, was later promulgated as the Ministry of Commerce standard PS15-69 “contact pressure-enhanced polyester chemical resistant media equipment.” Its basic theoretical basis and its recommended design methods are applied traditional metal strength theory, that is, according to the strength criteria for “design” and so on. But FRP is an anisotropic material, its design theory should be based on its special failure mechanism. Because of its initial destruction is not the intensity of destruction, so the strength of the metal