功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2015年
8期
8055-8058,8062
,共5页
刘子海%严长浩%宋佳%胡丽敏%王春宏%王志峰%张明
劉子海%嚴長浩%宋佳%鬍麗敏%王春宏%王誌峰%張明
류자해%엄장호%송가%호려민%왕춘굉%왕지봉%장명
含钆有机玻璃%紧凑拉伸%断裂韧性%断裂机理
含釓有機玻璃%緊湊拉伸%斷裂韌性%斷裂機理
함구유궤파리%긴주랍신%단렬인성%단렬궤리
Gd3 +-containing organic glass%compact tension%fracture toughness%mechanism of fracture
利用紧凑拉伸实验方法,测定含钆有机玻璃的平面应变断裂韧性 K IC ,并对紧凑拉伸试样的断面形貌进行分析。利用环境扫描电子显微镜原位拉伸测试技术,分析含钆有机玻璃在拉伸应力下的断裂过程,认为用裂尖银纹-裂纹模型和次级破裂模型分别解释含钆有机玻璃的慢速裂纹扩展和快速裂纹扩展过程是合适的。
利用緊湊拉伸實驗方法,測定含釓有機玻璃的平麵應變斷裂韌性 K IC ,併對緊湊拉伸試樣的斷麵形貌進行分析。利用環境掃描電子顯微鏡原位拉伸測試技術,分析含釓有機玻璃在拉伸應力下的斷裂過程,認為用裂尖銀紋-裂紋模型和次級破裂模型分彆解釋含釓有機玻璃的慢速裂紋擴展和快速裂紋擴展過程是閤適的。
이용긴주랍신실험방법,측정함구유궤파리적평면응변단렬인성 K IC ,병대긴주랍신시양적단면형모진행분석。이용배경소묘전자현미경원위랍신측시기술,분석함구유궤파리재랍신응력하적단렬과정,인위용렬첨은문-렬문모형화차급파렬모형분별해석함구유궤파리적만속렬문확전화쾌속렬문확전과정시합괄적。
The plane-strain fracture toughness K IC of Gd3 +-containing organic glass was investigated from the compact tension test,and the fractographs of compact tension specimen on the fracture surfaces was analysed. The fracture process under tensile stress of Gd3 +-containing organic glass has been examined via in situ environ-mental scanning electron microscopy (ESEM).We are convinced that crack-craze model on crack tip for slow crack growth and secondary fracture model for fast crack growth of Gd3 +-containing organic glass may be used to explain all phenomenons which were observed in this experiments.