J0404-8-4 継手構造のモニタリング用センサー「スマートボルト」の基礎特性([J0404-8]知的材料・構造システム(8):各種センシング)

概要

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The usage of composite materials in the space and aircraft structure was enlarged for minimizing of the structure weight. As a full composite structure is difficult, there are some joint structures between composite parts and metallic parts, then, the monitoring of the joint structure was important to keep safety. Applying the fastener, embedded the optical fiber sensor, showed good results for detecting damages around the joint in the previous studies. The possibilities of the strength reduction, due to the hole for the embedded sensor, were failed, prior to the failure of the bolt. The finite element analysis showed that there was a stress concentration around the drilling hole, however, this concentration did not affect to the higher stress region around the contacted area. The strength reduction was concluded to negligible in this study.
一般社団法人日本機械学会の論文
2010-09-04