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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
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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

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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
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

4楼2015-01-18 12:11:29
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