Elastoplastic equivalent material and preparation method thereof

The invention relates to an elastoplastic equivalent material and a preparation method thereof. Paraffin, vaseline and powder rubber are used as raw materials and mixed in different mass proportions to obtain geotechnical equivalent material with ideal elastoplastic stress-strain characteristic and stress--intensified stress-strain characteristic. The material has low strength, is convenient to load in a model experiment, and is applicable to small-size loading equipment. The material can be recycled, has stable mechanical properties, and greatly lowers the experimental cost. The elastoplastic equivalent material has wide sources of raw materials, is easy to process, does not need curing, has stable mechanical properties at room temperature, can be used for simulating the geotechnical elastoplastic material, and is beneficial to solving the practical problems in geotechnical engineering production. The invention has the advantages of simple preparation method, low price and strong practicality.