金属学报  1982, Vol. 18 Issue (3): 293-301

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Marx法中与粘结层流变和开裂有关的非线性内耗现象

孙宗琦

中国科学院金属研究所

NON-LINEAR INTERNAL FRICTION PHENOMENA ASSOCIATED WITH FLOWING AND CRACKING OF ADHESIVE IN MARX METHOD

Sun Zongqi (Institute of Metal Research; Academia Sinica; Shenyang)

孙宗琦. Marx法中与粘结层流变和开裂有关的非线性内耗现象[J]. 金属学报, 1982, 18(3): 293-301.
. NON-LINEAR INTERNAL FRICTION PHENOMENA ASSOCIATED WITH FLOWING AND CRACKING OF ADHESIVE IN MARX METHOD[J]. Acta Metall Sin, 1982, 18(3): 293-301.

摘要 参考文献 相关文章 Metrics 全文: PDF(719 KB)   摘要: 定量研究了Marx法测量低内耗试样内耗及模量亏损时各种粘结剂引起的所谓操作效应。对于水杨酸苯酯,水玻璃混合剂之类弱粘结剂所造成的背景内耗既不能忽略也不是常数,它与粘结层温度、热应力、时间、干燥程度和应变振幅等因素有关。经过高温热循环,粘结剂中出现徽裂缝时呈现双共振峰。在稍高频率的反常共振峰所测得的内耗,随应变振幅或大振幅激发时间的增加而减小,并且在小振幅时效中增大。当反常共振峰频率与正常共振峰靠近时,在内耗-振幅或内耗-时间图上呈现峰值效应。观察到各种共振振幅-频率滞后回线,在一定非线性回线和时效场合下观察到可重复的试样振幅的概周期跳动。 采用高温高强度粘结剂后,上述现象均消失,但是热应力使石英传递棒开裂或试样范性变形。 分析了Marx法的适用范围及改进途径。 Abstract：The "operation effects" resulted from various adhesives were quantitatively evaluated during measuring the internal friction and modulus defect of low damping specimens by Marx-method. It was observed that the background of internal friction for some weak adhesives, e. g., phenyl salicylate, water glass mixture, etc. seems to be neither negligible nor constant value which is dependent on such factors as their temperature, thermal stress, time, dryness and strain amplitude, similar to that of dislocation damping. Two resonant peaks were observed for high temperature thermospalled adhesives with cracks. The internal friction measured at an anomalous resonant peak with slightly higher frequency decreases with increasing of the strain amplitude or the exciting time at high amplitude and increases with aging under lower amplitude. Peaking effects were found on the plot of internal friction vs strain amplitude or time when the resonant frequency of anomalous peak closed to the normal one. The hysteresis loops were observed on the plots of resonant amplitude vs frequencies. In certain combination of non-linear resonant hysteresis loop with aging effect, the almost periodic jumps of the repeatable amplitude of specimens may be presented. The aforementioned phenomena had vanished by using a high temperature and high strength adhesive, but the cracking of quartz dumb bar and plastic flow of specimen undergone by the thermal stress. An approach to its applicability and improvement has also been attempted. 收稿日期: 1982-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 孙宗琦 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1982/V18/I3/293 1 Lenz,D.,私人通讯 2 章安庆,未发表工作. 3 Weller,M.,私人通讯. 4 Thompson, D. O., Internal Friction and Ultrasonic Attenuation in Solids, Ed. Hasiguti, R.R.; Mikoshiba, N., University of Tokyo Press., 1977． 5 Iwasaki, Y.; Imanaka, T.; Fujimoto, K., ibid, p. 803． 6 Marx, J. W., Rev. Sci. Inst., 22 (1951) , 503． 7 Niblett, D. H.; Wilks, J., Adv. Phys., 9 (1960) , 1． 8 Takahashi, S., J. Appl. Phys., 23 (1952) , 866． 9 Kessler, J. O., Phys. Rev., 106 (1957) , 646． 10 Simpson, M.; Finlayson, T. R.; Smith, T.F., J. Phys., D 11 (1978) , 453． 11 Caswell, H. L., J. Appl. Phys., 29 (1958) . 1210． 12 Hiki, Y., J. Phys. Soc. Jpn., 13 (1958) . 1138． 13 Robinson, W. H.; Edgar, A., IEEE Trans. Sorties Ultrason., SU-21 (1974) , 98． 14 Robinson, W. H.; Carpenter, S. H.; Tallon, J. L., J. Appl. Phys., 45 (1974) , 1975． 15 Sakamoto, K., Scr. Metall., 10 (1976) , 399． 16 Huber, R. J.; Poker, G. S.; Gibs, P., J. Appl. Phys., 32 (1961) , 2488． 17 孙宗琦,待发表 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed