Some experiences in using the K-gage to measure stress intensity factors

机译：使用K量规测量应力强度因子的一些经验

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Measurements of K were performed for different speciment geometries representing cracks in aircraft structures. Stress intensity factors of cracks in three speciment configurations were studied, i.e. cracks emanating fromopen holes, a crack in stiffened sheet, and a crack in sheet with a bonded composite patch. The K-gage was sued for this purpose, because it is simple to use and only needs standard instruments for strain gage measurements. The results of measurements showed that for a simple geometry of holes and a crack with three holes in one row, the K-gage gave a good correlation wit the boundary element method with a difference of less than 3

机译：K的测量是针对代表飞机结构裂缝的不同试样几何形状进行的。研究了三种试样形态下的裂纹的应力强度因子，即从开孔产生的裂纹，加劲的板中的裂纹以及具有粘结复合补片的板中的裂纹。为此使用了K-gage，因为它使用简单，只需要标准仪器即可进行应变计测量。测量结果表明，对于简单的孔几何形状和在一行中具有三个孔的裂纹，K量规与边界元法具有很好的相关性，相差小于3

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《Sixth International Conference on Damage and Fracture Mechanics: Computer Aided Assessment and Control 2000 Nontreal, Canada,》|2000年|p.83-92|共10页
会议地点 Montreal(CA)
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I.S. Putra;
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正文语种 eng
中图分类一般工业技术;
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Some experiences in using the K-gage to measure stress intensity factors

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