在光弹试验中,往往碰到模具的制作问题,特别是对于浇注复杂模型的模具,目前国内尚未得到比较满意的解决。现在一般都是采用石膏、低熔点合金或石蜡等制作模具。但它们均各有其缺点,如:制作工艺复杂,生产周期长,很难制成结构复杂的模具等,因此,寻找新型模具材料是光弹试验的关键问题之一。 In the photoelastic test, the production of the mold is often encountered, and in particular, the molds for pouring complex models have not yet been satisfactorily solved in China. Nowadays, molds are generally made of gypsum, low melting point alloys, or paraffin wax. However, they all have their own shortcomings, such as: complex production process, long production cycle, it is difficult to make a complex structure of the mold, etc. Therefore, the search for new types of mold materials is one of the key issues of photoelastic test.