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?纖維增強塑料沖擊試驗方法GB/T1451-2005

作者：來源：发布日期： 2020.10.20

信息摘要：

?纖維增強塑料沖擊試驗方法GB/T1451-2005

标准GB/T1451-2005是纤维增强塑料性能冲击试验方法，需要用到沖擊試驗機，冲击原理是将开有V形缺口的试样两端水平放置在支撑物上，缺口背向冲击摆锤，摆锤向试样中间撞击一次，使试样受冲击时产生应力集中而迅速破坏。

以下是纤维增强塑料沖擊試驗機的试验过程：

1.选好摆锤沖擊試驗機，使冲断试样所消耗的工功落在满量程的10%～85%范围内。

2.調整好支座距離

3.根據試驗機沖擊中心試樣情況，看是否在支座上加墊片。

4.試驗前，須經一次空載沖擊，將試驗機讀數盤規零。

5.在試驗機上裝好試樣。

6.進行沖擊試驗，記錄中斷試樣所消耗的功及破壞形式。

7.最後打出試驗報告。

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The Curate, of course, had heard nothing about the Clockwork man's other performances; he had scarcely heeded the hints thrown out about the possibility of movement in other dimensions. It seemed to him, in the uncertain light of their surroundings, that the Clockwork man's right arm gradually disappeared into space. There was no arm there at all. Afterwards, he remembered a brief moment when the arm had begun to grow vague and transparent; it was moving very rapidly, in some direction, neither up nor down, nor this way or that, but along some shadowy plane. Then it went into nothing, evaporated from view. And just as suddenly, it swung back into the plane of the curate's vision, and the hand at the end of it grasped a silk hat. Good fitting is often not so much a question of skill as of the standard which a workman has fixed in his mind, and to which all that he does will more or less conform. If this standard is one of exactness and precision, all that is performed, whether it be filing, turning, planing, or drawing, will come to this standard. This faculty of mind can be defined no further than to say that it is an aversion to whatever is imperfect, and a love for what [171] is exact and precise. There is no faculty which has so much to do with success in mechanical pursuits, nor is there any trait more susceptible of cultivation. Methodical exactness, reasoning, and persistence are the powers which lead to proficiency in engineering pursuits. I was the only civilian in that road, and the soldiers, with much curiosity, stared at me. Whenever I noticed an officer, I gave an elaborate military salute, and with such an air that the officers, although hesitating at first, did not fail to return the salute. The reformed system of education was to be not only moral and religious but also severely scientific. 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