A study of hypervelocity impact on cryogenic materials

被引：20

作者：

Ohtani, K. ^{[1
]}

Numata, D.

Kikuchi, T.

Sun, M.

Takayama, K.

Togami, K.

机构：

[1] Tohoku Univ, Interdisciplinary Shock Wave Res Lab, Sendai, Miyagi 9808577, Japan

[2] Mitsubishi Heavy Ind Co Ltd, Nagoya Aerosp Syst, Nagoya, Aichi, Japan

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2006年 / 33卷 / 1-12期

关键词：

hypervelocity impact; cryogenic temperature; space debris bumper shield; ballistic range;

D O I：

10.1016/j.ijimpeng.2006.09.025

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper reports a result of hypervelocity impact experiments on cryogenically cooled aluminum alloys and a composite material. Experiments are carried out on a target palate at 122 K. Aluminum spheres at 1.95 km/s in 50 kPa air were impinged against the target plate at cryogenic temperature and the result was compared with room temperature target plates. Hypervelocity impact (HVI) processes were visualized with shadowgraph arrangement and recorded with highspeed video camera and to ensure the temperature dependence we compared HVI tests with metal target plates with AUTODYN 2D and SPH numerical simulations. We found that cryogenic impacts created slight differences of impact damage from room temperature ones, i.e., the shape and averaged diameters of HVI crater holes were less at cryogenic impacts. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：555 / 565

页数：11