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| Long-term Storage Property and Constitutive Relation of Rigid Foamed Plastic Missile-launcher |
| Received:September 24, 2015 Revised:February 15, 2016 |
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| DOI：10.7643/issn.1672-9242.2016.01.026 |
| KeyWord:rigid foamed plastic missile-launcher storage property constitutive relation creep test |
| Author | Institution |
| GONG Xiao-chun |
Beijing Institute of Structure and Environment Engineering， Beijing |
| HU Yan-ping |
Beijing Institute of Structure and Environment Engineering， Beijing |
| TANG Bao-qiang |
Beijing Institute of Structure and Environment Engineering， Beijing |
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| Abstract: |
| Objective To study the storage property and constitutive relation of the rigid foamed plastic missile-launcher. Methods Firstly, the compression creep test under high temperature was carried on to the specimen, secondly, the creep performance of the compressed specimen was analyzed to get the compression creep curve, on the basis of which the WLF equation was used to evaluate the storage time limit. Results Based on the stress-strain curve of the specimen material, the compressive constitutive relation of the material was founded by numerical simulation. Conclusion The constitutive relation had no changes during the compression creep test, the study can provide reference for life estimation and invalidation mechanism studies of following series of test specimens. |
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