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对玻璃钢蠕变试验的研究,国内已有20年历史,国外也有近40年历史。但是,直到目前还未见到进行比较长时间的蠕变试验资料,对蠕变机理也没有见到比较深入研究的文章。本文着重讨论玻璃纤维增强塑料(玻璃钢)的蠕变机理。 一、纤维的蠕变性能 纤维增强塑料的蠕变性能与组份材料的蠕变性能、组份比、成型工艺、应力状态、应力方向等因素有关。目前使用的纤维,主要是玻璃、碳、硼、Kevlar等纤维。除Kevlar有机纤维有较明显的蠕变外,其它纤维在常温下没有或很少有蠕变。例如,为了观察玻璃纤维的蠕
Research on the creep test of glass fiber reinforced plastic has 20 years of history in China and nearly 40 years of history abroad. However, up to now no creep test data have been seen for a long time, and no in-depth study on creep mechanism has been found. This article focuses on the creep mechanism of glass fiber reinforced plastics (FRP). First, the fiber creep properties of fiber-reinforced plastic creep properties and component materials creep properties, component ratio, molding process, stress state, stress direction and other factors. Currently used fibers, mainly glass, carbon, boron, Kevlar and other fibers. Apart from the obvious creep of Kevlar organic fibers, other fibers have little or no creep at room temperature. For example, in order to observe the creep of glass fibers