Bending behavior based on hardness gradient for hot forming high strength steel

被引：0

作者：

Shen, Guozhe ^{[1
]}

Li, Xiaowen ^{[1
]}

Ying, Liang ^{[1
]}

Shi, Dongyong ^{[2
]}

Guo, Runqing ^{[1
]}

Meng, Zhaohuan ^{[1
]}

机构：

[1] School of Automotive Engineering, Dalian University of Technology, Dalian 116024, China

[2] Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China

来源：

Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2013年 / 44卷 / 02期

关键词：

Different thickness - Gradient materials - Gradient model - Hardness gradient - Mechanical parameters - Multilayer composite - Three point bending - Three-point bending test;

D O I：

10.6041/j.issn.1000-1298.2013.02.047

中图分类号：

学科分类号：

摘要：

A three-point bending test of hot forming high strength steel specimens with different thickness was designed. The related mechanical parameters were obtained. The results indicated that the bending mechanical properties of hot forming specimens were strengthened with the increase of the thickness. The specimens which were based on different thickness had higher center hardness and lower surface hardness. Meanwhile, a multi-layer composite material was proposed with hardness gradient distribution in the direction of the thickness. Based on the hardness gradient and the hardness-strength corresponding to the relationship, a multi-layer gradient numerical simulation model of three-point bending was established, explored that the gradient material model was more rational for numerical simulation.

引用

页码：261 / 266

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