The fracture strength of rectangular plate with inclined crack is analyzed considering two failure modes of elastic fracture and fully plastic failure respectively.

对具有中心穿透斜裂纹在弹性断裂和完全塑性断裂两种破坏模式下的断裂强度进行了分析。

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There is no such thing as a fully plastic gun, 3D printed or otherwise.

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It's not well-known or even thought about but ever since Leo Hendricks unveiled the first fully synthetic moldable hard plastic called Bakelite to the American Chemical Society in 1909, except for a very small percentage that has been incinerated, every single molecule of plastic ever manufactured still exists somewhere in our environment.

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While the others bow fully to the floor Al Qadri, in his old age, remains sitting on a plastic chair.

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