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量化材料的力学性能以及材料在外部应力作用下的弹塑性变形过程。

Quantifying the Mechanical Properties of Materials and the Process of Elastic-Plastic Deformation under External Stress on Material.

作者信息

Valíček Jan, Harničárová Marta, Öchsner Andreas, Hutyrová Zuzana, Kušnerová Milena, Tozan Hakan, Michenka Vít, Šepelák Vladimír, Mitaľ Dušan, Zajac Jozef

机构信息

Institute of Physics, Faculty of Mining and Geology, VŠB-Technical University of Ostrava, 708 33 Ostrava, Czech Republic.

Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use, Faculty of Mining and Geology, VŠB-Technical University of Ostrava, 708 33 Ostrava, Czech Republic.

出版信息

Materials (Basel). 2015 Nov 3;8(11):7401-7422. doi: 10.3390/ma8115385.

DOI:10.3390/ma8115385
PMID:28793645
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5458897/
Abstract

The paper solves the problem of the nonexistence of a new method for calculation of dynamics of stress-deformation states of deformation tool-material systems including the construction of stress-strain diagrams. The presented solution focuses on explaining the mechanical behavior of materials after cutting by abrasive waterjet technology (AWJ), especially from the point of view of generated surface topography. AWJ is a flexible tool accurately responding to the mechanical resistance of the material according to the accurately determined shape and roughness of machined surfaces. From the surface topography, it is possible to resolve the transition from ideally elastic to quasi-elastic and plastic stress-strain states. For detecting the surface structure, an optical profilometer was used. Based on the analysis of experimental measurements and the results of analytical studies, a mathematical-physical model was created and an exact method of acquiring the equivalents of mechanical parameters from the topography of surfaces generated by abrasive waterjet cutting and external stress in general was determined. The results of the new approach to the construction of stress-strain diagrams are presented. The calculated values agreed very well with those obtained by a certified laboratory VÚHŽ.

摘要

本文解决了缺乏一种用于计算变形工具 - 材料系统应力 - 变形状态动力学的新方法的问题，包括应力 - 应变图的构建。所提出的解决方案侧重于解释通过磨料水射流技术（AWJ）切割后材料的力学行为，特别是从生成的表面形貌的角度。AWJ是一种灵活的工具，根据精确确定的加工表面形状和粗糙度，精确地响应材料的机械阻力。从表面形貌中，可以解析从理想弹性到准弹性和塑性应力 - 应变状态的转变。为了检测表面结构，使用了光学轮廓仪。基于实验测量分析和分析研究结果，创建了一个数学 - 物理模型，并确定了一种从磨料水射流切割产生的表面形貌和一般外部应力中获取机械参数等效值的精确方法。给出了构建应力 - 应变图新方法的结果。计算值与认证实验室VÚHŽ获得的值非常吻合。

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Process Parameter Modeling and Optimization of Abrasive Water Jet Dressing Fixed-Abrasive Pad Based on Box-Behnken Design.基于Box-Behnken设计的磨料水射流修整固定磨料垫工艺参数建模与优化
Materials (Basel). 2022 Jul 29;15(15):5251. doi: 10.3390/ma15155251.
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A New Method of Predicting the Structural and Mechanical Change of Materials during Extrusion by the Method of Multiple Plastic Deformations.一种通过多次塑性变形方法预测材料挤压过程中结构和力学变化的新方法。
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