介绍了金属延性动态损伤的微孔生长模型的研究方法和一般内容。
The studying method and the general contents of microvoids growth models for dynamic ductile damage of metals are introduced and the newest models are evaluated.
研究结果表明，随钢组织在预加载荷中产生的微孔洞初始损伤量的增加，其延性起裂韧性降低。
The results showed that with increasing the amount of the initial void damage, the ductile fracture initiation toughness of steel decreases.
在其他条件都相同而核心区配箍率不同的情况下，核心区配箍率越小其损伤值越大，其延性也越差。
If the rate of stirrup used in core area is smaller and the damage is larger, the ductility is worse.
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