期刊文献+

软材料接触力学问题的实验研究 被引量:4

Experimental Analysis of Mechanics Problem within Soft Material Contact Field in Large Deformation
原文传递
导出
摘要 针对硫化硅橡胶在刚性压头作用下的大变形接触问题,研究了橡胶类软材料接触区区域变形场的实验测量技术。为了研究硫化硅橡胶与刚性体在试件内部接触的大变形问题,本文提出了一种体内数字栅云纹实验技术,给出了该技术的原理和实现方法。然后运用数字图像处理方法得到了橡胶材料大变形位移u场、v场,并结合橡胶材料在压头作用下的理论分区模型,分析了软材料接触区域的大变形场,讨论了接触区域的变形分区规律,并初步给出了接触区域应变计算方法。 An experimental measurement technique was developed and presented in this paper for solving the mechanics problem emerged in the contact field formed by a rigid indenter and rubber-like soft material with large deformation. The soft material being studied is a kind of vulcanized silicone rubber, and the in-plane deformation of a large deformation field is measured by digital moire method. As the specimen is in large deformation and the contact with wedge-shape indenter occurs in the specimen, an inner-grating technology is presented, and its principle and implementation method is introduced in the paper. The vertical and horizontal displacement field was obtained by digital image processing method. Then, deformation characteristics and experimental sector division properties in the vicinity of contact edge were analyzed according to the results of in-plane deformation. Further, the strain distribution near the contact area can be provided by a grid deformation method, based on large deformation theory. The data were directly obtained from experimental results, so it's intuitive and reliable.
出处 《实验力学》 CSCD 北大核心 2010年第5期509-515,共7页 Journal of Experimental Mechanics
基金 国家自然科学基金重点项目(10732080) 教育部博士点基金新教师项目(20090032120008)资助
关键词 数字云纹技术 软材料 大变形 接触问题 体内栅 digital moire method soft material large deformation contact problem inner-grating
  • 相关文献

参考文献18

  • 1德热纳PG,巴杜J著.软物质与硬科学[M].卢定伟等译.湖南教育出版社,2000.
  • 2Gent A N. Engineering with rubber: How to design rubber components[M]. Hanser Gardner, 2001.
  • 3Gladwell G M L. Contact Problems in the Classical Theory of Elasticity[M]. Sijthoff and Noordhoff, 1980.
  • 4Johnson K L.接触力学[M].徐秉业,罗学富,刘信声,等,译,北京:高等教育出版社,1992.
  • 5Scheibert Jet al. Stress Field at a Sliding Frictional Contact: Experiments and Calculations[J]. Journal of the Mechanics and Physics of Solids, 2009,57 (12) : 1921 - 1933.
  • 6Wang M J et al. Nanoindentation of polymeric thin films with an interfacial force microscope[J]. Journal of the Mechanics and Physics of Solids, 2004,52: 2329- 2354.
  • 7Erdogan F, Arin K. Effect of friction in wedging of elastic solids[J]. Journal of Elasticity, 1976,6(3):261-275.
  • 8张海波,伍小平.二维相移逻辑云纹法──条纹图全自动处理的一种方法[J].实验力学,1994,9(3):181-191. 被引量:8
  • 9张海波,伍小平.相移逻辑云纹法(PSALM)用于位移场和应变场测试[J].固体力学学报,1994,15(2):121-127. 被引量:4
  • 10Morimoto Y, et al. Deformation measurement during powder compaction by a scanning moire method[J]. Experimental Mechanics, 1984, 24(2) : 112- 116.

二级参考文献15

共引文献61

同被引文献52

引证文献4

二级引证文献20

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部