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小木虫论坛-学术科研互动平台 » 材料区 » 金属 » 失效分析 » 低碳钢的疲劳裂纹扩展门槛值△Kth求解
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朱凯xc

银虫 (小有名气)

[求助] 低碳钢的疲劳裂纹扩展门槛值△Kth求解 已有3人参与

小弟马上就要去做带预制裂纹的实验了，迫切想知道低碳钢的疲劳裂纹扩展门槛值△Kth。
我的材料是船用钢D32，这方面的资料很少，我就用低碳钢的疲劳裂纹扩展门槛值△Kth代替船用钢D32的，哪位前辈要是知道，但求帮助。
您的举手之劳，会让我少走很多弯路，谢谢了---再次感谢了----大侠们
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Dowhatyoulove,fucktherest
1楼 2015-01-18 10:19:14
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phoenix7573

金虫 (著名写手)

【答案】应助回帖

感谢参与，应助指数 +1
低碳钢，哪个牌？不一定有现成的数据，最好自己做

[ 发自手机版 http://muchong.com/3g ]
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2楼2015-01-18 11:25:02
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zbhwel

专家顾问 (知名作家)

【答案】应助回帖

感谢参与，应助指数 +1
Q235板材（10mm）的疲劳裂纹扩展门槛值△Kth=225.7N/mm3/2

Q235材料的Paris常数C、m及△Kth值测试
http://www.doc88.com/p-1085942172321.html
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主要从事稀有金属钛合金、钽铌及其合金，铍青铜材料及管棒线材塑性加工技术研究与生产。
3楼2015-01-18 11:36:04
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dickliu7

铁杆木虫 (著名写手)

【答案】应助回帖

感谢参与，应助指数 +1
Threshold Stress Intensity??????????????????????y??h??(load ratio, corrosion, etc.)????????????B(???????B???u???????)??????в???????????y??da/dN?????á?Kth??

?w???????????????С??????????????Мy??l????????l????(??????????B???)?????á?
??????????????????????Kth???
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_01.png


??????????????????????Kth???-1
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_02.png


??????????????????????Kth???-2
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_03.png


??????????????????????Kth???-3
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_04.png


??????????????????????Kth???-4
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_05.png


??????????????????????Kth???-5
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_06.png


??????????????????????Kth???-6
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_07.png


??????????????????????Kth???-7
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_08.png


??????????????????????Kth???-8
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_09.png


??????????????????????Kth???-9
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_10.png


??????????????????????Kth???-10
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_11.png


??????????????????????Kth???-11
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_12.png


??????????????????????Kth???-12
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_13.png


??????????????????????Kth???-13
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_14.png


??????????????????????Kth???-14
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_15.png


??????????????????????Kth???-15
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_16.png


??????????????????????Kth???-16
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_17.png


??????????????????????Kth???-17
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_18.png


??????????????????????Kth???-18
E€ect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V_???_19.png
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4楼2015-01-18 12:11:29
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