摘要
本文报导了铝合金固支浅圆拱在子弹撞击下动力响应的实验研究,试验中采用应变片测量并由高速摄影得到试件变形的瞬态记录。实验结果表明,此类浅拱的动力响应不存在失稳现象;但在某一撞击速度区间内,拱的中心位移增加较快,拱的响应前期轴力可以忽略不计,而在后期则必须考虑。
The dynamic responses of clamped shallow arches, made of aluminum - alloy, subjected to projectile impact are investigated experimentally. The strain recorder and high -speed camera are used to study the deformation process of arches. The experimental data show that, over a small range of impact velocity, the arch undergoes a significant increase in response. The axial deformation alone the arch can be negelected during the early response phase, but it becomes an important factor during the late response phase.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
1991年第3期238-243,共6页
Explosion and Shock Waves
基金
山西省自然科学基金会资助
关键词
圆拱
子弹
撞击
实验
动力响应
experimental investigation, shallow arches, projectile impact.
