2021 低温環境下における高分子材料の材料強度評価(G03-3 繊維・高分子・複合材料,G03 材料力学)

概要

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The high polymer materials are used. It is estimated that this kind of material benefit 々 probably will be utilized in future society. But, the high polymer materials when crack and the notch exist, concentration or stress occurring there, become cause of destruction. In this study, it does the impulse kill experiment under the low temperature environment whose research report examples are few, calculates dynamic stress enlargement factor, analyze that as index of destructive behavior. In this research, it did the appraisal analysis of the influence which it causes to the high polymer materials where impulse kill behavior has crack it designated that strength quality is elucidated as purpose. As a result, because the extent yield stress which becomes low temperature becomes high, before reaching to the stress which is necessary for plastic deformation it was thought the thing brittle fracture. In addition, as for dynamic destructive behavior says, that the place where it depends on temperature is large as for relationship of the proportion due to temperature was thought that it is not.
一般社団法人日本機械学会の論文
2007-09-07