Article ID Journal Published Year Pages File Type
5459051 Journal of Alloys and Compounds 2017 8 Pages PDF
Abstract
This paper is concerned with the bending strength of the materials that is improved under the combined tension and three-point bending loadings. During the tension and three-point bending process, the whole evolution of metallographic structures of the specimens is in situ monitored by the microscope of in situ monitoring module. Moreover, a finite element analysis (FEA) model is established by using ABAQUS to analyze the distribution of stress, when the pre-tensile stress is different, but the deflection of the three-point bending is same, 3.0 mm. The simulation results are consistent with the experiment results. Therefore, it is clearly that the bending strength is increased with the increase of pre-tensile stress, when the bending load is 1750N every time. And the yield point of material is obviously disappeared under combined tension and three-point bending loadings. Meanwhile, the in situ metallographic images verify from the microscopic point of prospective that the bending strength of the material has been improved.
Keywords
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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