The Influence Of Temperature On The Hypervelocity Impact Characteristic Of Woven Materials

The climate is very harsh in outer space. The temperature of spacecraft surface isas high as200℃in direct sunlight. Howere, it is dropped to-180℃,when thespacecraft move to the shadow of the earth. The temperature in the surface of spacecraftis not well-distributed,even in direct sunlight. The space debris shield configuration isusually in the outer layer of the spacecraft and exposure directly to the extreme climateconditions. The temperature in the space debris shield configuration changes drastically,and it has to effect the performance of the material badly. This thesis will study theinfluence of temperature on the hypervelocity impact characteristic of woven materialsby the means of hypervelocity impact test and numerical simulation. The wovenmaterials involved in this paper are aluminum mesh, basalt fiber woven and kevlar fiberwoven, which are commonly used in the space debris shield configuration. This articlewill focus on the influence of temperature on the hypervelocity impact characteristic,hypervelocity impact damage characteristic and hypervelocity impact debris cloudfeatures. The research achievement will be of great help to design of shieldconfiguration.Firstly, different material bumper of dual-wall structure were experimented withthrough hypervelocity impact under the velocity of ballistic range and shatter range,with the experiment temperature of293K and393K. The influence of temperature onthe hypervelocity impact characteristic and hypervelocity impact damage characteristicof aluminum mesh/basalt fiber woven/kevlar fiber woven bumper of dual-wallstructure have been systematically studied.Secondly, the stuffed Whipple shields with aluminum mesh/basalt fiber woven/kevlar fiber woven were experimented with through hypervelocity impact under thevelocity of ballistic range and shatter range, with the experiment temperature of293Kand393K. The influence of temperature on the hypervelocity impact characteristic andhypervelocity impact damage characteristic of stuffed Whipple shields with aluminummesh/basalt fiber woven/kevlar fiber woven have been studied in detail.Lastly, with the help of Autodyn the numerical simulation software, the process ofhypervelocity impact has been reappeared. The influence of temperature on thehypervelocity impact debris cloud features have been studied. The temperature in thetest are100K,300K and500K.