| 三点弯曲单试样测定高强高韧钢断裂韧度JIC的柔度方法 |
| |
| 引用本文： | 耿平.三点弯曲单试样测定高强高韧钢断裂韧度JIC的柔度方法[J].东北大学学报(自然科学版),1997,18(5):561-564. |
| |
| 作者姓名： | 耿平 |
| |
| 作者单位： | Geng Ping，Zeng Meiguang，Qian Cunfu，Zhang Baojin，Lei Jiafeng |
| |
| 基金项目： | 国家“八五”重点科技攻关项目 |
| |
| 摘 要： | 针对金属材料延性断裂韧度ＪＩＣ测试中存在的测试手续繁杂，消耗材料多等问题，根据试样在加载过程中裂纹扩展，柔度增加的原理，导出新的Ｊ积分与柔度Ｃ的关系，通过加载卸载法计算出柔度Ｃｉ，
|
| 关 键 词： | 三点弯曲 柔度 J积分 断裂韧工 高强度钢 |
A Three Point Bend Single Specimen Unloading Compliance Method for Determining J IC of High Strength and High Fracture Toughness Steels |
| |
| Geng Ping,Zeng Meiguang,Qian Cunfu,Zhang Baojin,Lei Jiafeng.A Three Point Bend Single Specimen Unloading Compliance Method for Determining J IC of High Strength and High Fracture Toughness Steels[J].Journal of Northeastern University(Natural Science),1997,18(5):561-564. |
| |
| Authors: | Geng Ping Zeng Meiguang Qian Cunfu Zhang Baojin Lei Jiafeng |
| |
| Abstract: | In view of the fact that testing procedure is troublesome and material consumption is more in metallic materials measurement of fracture toughness,from the principle that the compliance will be increased when the crack extends in the loading procedure, a formula for calculating J integral was proposed. The compliance is calculated with the method of loading and unloading. The onset point of crack extension and the point of unstable crack extension can be determined from the curve of compliance load point displacement. J IC and K JIC values calculated by this method are in good agreement with those with normal method for three kinds of high strength and high fracture toughness steels. |
| |
| Keywords: | three point bend compliance J integral fracture toughness |
| 本文献已被 CNKI 维普 等数据库收录！ |
