关于动态钝化线方程与J-R法确定JId的讨论
Discussion on Dynamic Blunting Line and JId Determination by J-R Curve Method
摘 要
在摆锤式示波冲击试验机上采用小角度冲击方法测试了某船用低合金钢的动态弹塑性断裂韧度JId.针对多试样J-R阻力曲线法因钝化线的不易确定性常造成测试结果JId误差较大的情况,考虑了加载速率对塑性流变应力的影响,给出了一新的动载条件下的钝化线方程：J=2NK(0.5εF)nΔa.在J-R阻力曲线法测定材料的JId时,用该方程可得到与小角度冲击方法相一致的测试结果.
小角度冲击法
J-R阻力曲线法
动态弹塑性断裂韧度JId
dynamic blunting line
low blow test
J-R curve method
dynamic elastic-plastic fracture toughness JId
Abstract
The dynamic elastic-plastic fracture toughness JId of a low alloy shipbuilding steel has been examined by low blow test using an instrumented Charpy impact machine.A larger error often occurs in measured results by multi-specimen J-R curve method because of the difficulty in determining the blunting line equation.On the basis of considering the effect of loading rate on plastic-flow stress,a new blunting line equation in dynamic loading has been obtained:J=2NK(0.5εF)nΔa.In the process of JId determination by J-R curve method,the result measured using this equation can get a very good agreement with that measured by low blow test.
中图分类号 TG146.2
所属栏目
基金项目
收稿日期 2004/12/3
修改稿日期 2005/3/2
网络出版日期
作者单位点击查看
备注杨卓青(1982-),男,山西应县人,硕士研究生.
引用该论文: YANG Zhuo-qing,LIU Rui-tang,ZHOU Zhi-fang,YIN Jian-cheng. Discussion on Dynamic Blunting Line and JId Determination by J-R Curve Method[J]. Materials for mechancial engineering, 2006, 30(3): 17～19
杨卓青,刘瑞堂,周志方,尹建成. 关于动态钝化线方程与J-R法确定JId的讨论[J]. 机械工程材料, 2006, 30(3): 17～19
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】姜凤春,刘瑞堂,张晓欣.船用945钢动态力学性能研究[J].兵工学报,2000,21(3):256-263.
【2】姜凤春,刘瑞堂,刘殿魁.船用921A钢动态断裂韧性测试研究[J].实验力学,1999,14(1):13-18.
【3】Chen B Y,Shi Y W.A comparison of various dynamic elasticplastic fracture toughness evaluating procedure by instrumented impact test[J].Engineering Fracture Mechanics,1990,(1):17-26.
【4】Server W L.General yielding of Charpy V-notch and precracked Charpy specimens[J].Journal of Engineering Materials of Technology,1978,100:183-188.
【5】姜凤春,刘瑞堂,刘殿魁.动态弹塑性断裂韧性测试方法的比较研究[J].实验力学,1999,14(2):267-272.
【6】Kobayashi T.Analysis of impact properties of A533 steel for nuclear reactor pressure vessel by instrumented Charpy test[J].Engineering Fracture Mechanics,1984,19(1):49-65.
【7】Landes J D,Begley J A.Recent developments in JIC testing[A].Developments in Fracture Mechanics Test Standardization,ASTM STP 632[C],Philadelphia:American Society for Testing and Materials,1977.57-81.
【8】Landes J D,Begley J A.Experimental methods for elastic-plastic and post-yield fracture toughness measurements[A].Post-Yield Fracture Mechanic[C].London:Appl Sci Pub LTD,1979.211-254.
【9】Hai Qiu,Manabu Enoki,Yoshiaki Kawaguchi,et al.A model for dynamic fracture toughness of ductile structural steel[J].Engineering Fracture Mechanics,2003,70:589-598.
【10】姜凤春,刘瑞堂,张晓欣,等.动态弹塑性断裂韧度测试方法研究[J].机械强度,2002,24(3):417-419.
【11】杨卓青,刘瑞堂,尹建成,等.一种新的钝化线形式[J].理化检验-物理分册,2005,41(2):26-29.
【2】姜凤春,刘瑞堂,刘殿魁.船用921A钢动态断裂韧性测试研究[J].实验力学,1999,14(1):13-18.
【3】Chen B Y,Shi Y W.A comparison of various dynamic elasticplastic fracture toughness evaluating procedure by instrumented impact test[J].Engineering Fracture Mechanics,1990,(1):17-26.
【4】Server W L.General yielding of Charpy V-notch and precracked Charpy specimens[J].Journal of Engineering Materials of Technology,1978,100:183-188.
【5】姜凤春,刘瑞堂,刘殿魁.动态弹塑性断裂韧性测试方法的比较研究[J].实验力学,1999,14(2):267-272.
【6】Kobayashi T.Analysis of impact properties of A533 steel for nuclear reactor pressure vessel by instrumented Charpy test[J].Engineering Fracture Mechanics,1984,19(1):49-65.
【7】Landes J D,Begley J A.Recent developments in JIC testing[A].Developments in Fracture Mechanics Test Standardization,ASTM STP 632[C],Philadelphia:American Society for Testing and Materials,1977.57-81.
【8】Landes J D,Begley J A.Experimental methods for elastic-plastic and post-yield fracture toughness measurements[A].Post-Yield Fracture Mechanic[C].London:Appl Sci Pub LTD,1979.211-254.
【9】Hai Qiu,Manabu Enoki,Yoshiaki Kawaguchi,et al.A model for dynamic fracture toughness of ductile structural steel[J].Engineering Fracture Mechanics,2003,70:589-598.
【10】姜凤春,刘瑞堂,张晓欣,等.动态弹塑性断裂韧度测试方法研究[J].机械强度,2002,24(3):417-419.
【11】杨卓青,刘瑞堂,尹建成,等.一种新的钝化线形式[J].理化检验-物理分册,2005,41(2):26-29.
相关信息
| 标题 | 相关频次 | |
 | 单试样测试材料JId值方法的比较 | 6 |
| 裂尖张开位移与伸张区宽度的关系 | 6 |
| 摆锤冲击试验结果的统计分析 | 4 |
| 预扭转低合金钢的强塑性配合 | 4 |
| 2A12铝合金喷射沉积坯的形状控制及显微组织 | 2 |
| 低碳合金钢及焊接接头断裂韧度的温度效应 | 2 |
| 分离式Hopkinson压杆系统冲击压缩过程中试样的应力均匀化过程 | 2 |
| 显微组织对BT14合金应力松弛行为的影响 | 2 |
