The main achievements are as follows:1) The film is an elastic-perfectly plastic material. Based on the FEM results, the empirical formulae for these two indentation stresses are obtained by fitting the curve of indentation stress and penetration depth.
论文主要工作如下:1)对于薄膜为理想弹塑性材料,根据有限元计算结果,由压痕应力值随压入深度的变化曲线,拟合给出加载压痕应力和卸载压痕应力的解析解公式。
参考来源 - 二维压痕脱层实验中的压痕应力研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Individuals have a responsibility to stop using disposable plastic material.
个人有责任停止使用一次性塑料材料。
Plastic material is extruded through very small holes to form fibres.
塑料从细孔中挤压出来形成纤维。
Bacteria in the soil wouldn't break down the plastic material in ten years.
土壤中的细菌十年之内都不能把那些塑料物质降解掉。
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