コンポジット固体ロケット推進薬のポアソン比測定

Material type: 文書・図像類

Author: 大竹, 邦彦ほか

Publisher: 航空宇宙技術研究所

Publication date: 1973-08

Material Format: Digital

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Note (General)：: Poisson's ratio is one of the most important factors that have the effect on the ac- curacy of the stress analysis of the solid propellant grain. It i...

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Material Type: 文書・図像類
Title: コンポジット固体ロケット推進薬のポアソン比測定
Author/Editor: 大竹, 邦彦
遠藤, 修司
種村, 利春
OOTAKE, Kunihiko
ENDO, Shuji
TANEMURA, Toshiharu
Author Heading: 大竹, 邦彦
遠藤, 修司
種村, 利春
OOTAKE, Kunihiko
ENDO, Shuji
TANEMURA, Toshiharu
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1973-08
Publication Date (W3CDTF): 1973-08
Alternative Title: A Measurement of Poisson′s Ratio of CTPB Composite Solid Propellant
Periodical title: 航空宇宙技術研究所資料 = Technical Memorandum of National Aerospace Laboratory
No. or year of volume/issue: 245
Volume: 245
Pages: 12-
ISSN (Periodical Title): ISSN : 0452-2982
Text Language Code: jpn
Target Audience: 一般
Note (General): Poisson's ratio is one of the most important factors that have the effect on the ac- curacy of the stress analysis of the solid propellant grain. It is often assumed, however, that the propellant is incompressible. Therefore Poisson's ratio takes the value of one half, especially at low strain levels. In the present investigation, Poisson's ratio is evaluated experimentally by the photographic method. In the experiment, a special care is paid for the size and the marking of the test specimens. The errors of the measurement by the photographic method may be mainly raised from the following two ; one depends on the projecting machine employed, and the other depeneds on the sharpness of the marks. The former is of inevitable nature. The latter is caused by the roughness of the propellant's surface, which is scarcely seen in rubber specimens. These errors can be canceled out by taking the average values. The experiment is conducted at the room temperature and at the strain rate of 0.03 mm/mm/min. The strains were calculated in accordance with the formula which defines the natural strains. Test results show that Poisson's ratio of the propellant has a value of 0.47+0.01 at the strain level up to 10%, and then the ratio decreases gradually because of the dewetting phenomena.
資料番号: NALTM0245000
レポート番号: NAL TM-245
Access Restrictions: 限定公開
Periodical Title (NCID): AN00314334
https://ci.nii.ac.jp/ncid/AN00314334
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ