Status quo of theoretical model research for rock blasting and its development trend 爆破作用下岩石破碎理论模型的研究及发展趋势
2.
The 3 - d numerical simulation shows that the temperature rise of necking region is higher than that of no - necking region 对无氧铜在破碎前出现塑性失稳多重颈缩进行了初步分析，利用能量平衡的破碎理论给出了无氧铜环的破碎分布。
3.
The physics model was established to deduce the relationship of different classifying gear speeds and melting point on the base of the broken theory and the broken process of pvc . it explained that the melting point of nanocrystalline pvc was low . therefore the effect of nanocrystal was proved in theory 最后通过引入破碎理论针对pvc的破碎过程，建立物理模型推导出分级轮旋转速度与晶体熔点的关系，解释纳米晶pvc熔点低的原因，从而从理论上探讨了pvc的纳米晶效应。
