リサイクル先進強化ナイロンMXD6の疲労信頼性 : 第2報,き裂進展特性に係わるメゾ構造尺度での改善

概要

論文の詳細を見る
The method to improve the fatigue reliability of recycled-advanced reinforced PA・MXD6 was examined. Especially, the effects of the mezoscopic factor on the fatigue crack propagation were paid attention to. Main results were obtained as follows ; (1) As the recycled material was blended with the virgin material in recycling process, fatigue reliability of 'Ecomaterial' was remarkably improved. Practically the threshold value ΔK_<th> of` 'Ecomaterial' was improved by blending virgin pellet, as the rate of equal to blending value. Then the influence of virgin pellet blended in recycling process on fatigue reriability could be estimate by the law of mixture. (2) From fractgraphy with using SEM and analysis on the length of glass fiber, it could be interpreted the long glass fibers of virgin pellet contributed to the bridging effect on fatigue crack opening in 'Ecomaterial'. (3) The crack opening displacement in 'Ecomaterial' was estimated though measurering the crack tip heating. Then, it was intermedium between 'fully recycled material' and 'Virgin material'
一般社団法人日本機械学会の論文
1995-05-25