期刊论文

Study on Impact Properties of Metallic Foams Under Different Lateral Restraints and Load Proportions

中文

南华大学学报(自然科学版)

1673-0062

2024

38

1

46-52

10.19431/j.cnki.1673-0062.2024.01.006

国家自然科学基金项目(11902140)。

本校为第一机构

泡沫金属在实际工程中往往承受复杂多轴加载工况,且受到突发性爆破等极端动荷载的影响,处于多轴动态复杂应力状态。目前,受实验条件限制,泡沫金属难以实现任意比例的真三轴动态实验。本文采用数值模拟方法,采用霍普金森杆和解析刚体,...展开更多 泡沫金属在实际工程中往往承受复杂多轴加载工况,且受到突发性爆破等极端动荷载的影响,处于多轴动态复杂应力状态。目前,受实验条件限制,泡沫金属难以实现任意比例的真三轴动态实验。本文采用数值模拟方法,采用霍普金森杆和解析刚体,分别施加冲击荷载和侧限荷载,实现了泡沫金属真三轴动态实验,且实验过程中满足应力均匀性条件,同时,探究了不同侧限条件...

Metallic foams usually sustain multiaxial and dynamic loadings in applications,which are in multiaxial dynamic complex stress state affected by extreme dynamic loads such as sudden explosion.With limitations of experiments,multiaxial dynamic experiments with variable st...MORE Metallic foams usually sustain multiaxial and dynamic loadings in applications,which are in multiaxial dynamic complex stress state affected by extreme dynamic loads such as sudden explosion.With limitations of experiments,multiaxial dynamic experiments with variable stress triaxiality are difficult to be realized.In thi...