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金属材料在超高频振动作用下的屈服点、硬化率和延伸率都较常规情况明显降低。因此时材料的本构关系发生了重大变化。研究金属材料在超高频振动下的特殊行为，建立材料在超高额振动下的本构方程，利用所建立的本构方程解释这些特殊现象，给出低碳钢试件的实验曲线，通过与理论分析比较证明二者完全相符。
Metal materials in the UHF vibration under the yield point, the hardening rate and elongation were significantly lower than the conventional case. Therefore, when the constitutive relationship of materials has undergone major changes. The special behavior of metal materials under ultra-high frequency vibration is studied. The constitutive equations of materials under ultra-high vibration are established. The constitutive equations are used to explain these special phenomena. The experimental curves of low-carbon steel specimens are obtained. Comparison with the theoretical analysis shows that the two are completely consistent.