Heterogeneous-structured Cu samples composed of coarse-grained(CG) and ultrafine-grained(UFG) domains with a transitional interface were fabricated by friction stir processing, in order to investigate the effect of in...Heterogeneous-structured Cu samples composed of coarse-grained(CG) and ultrafine-grained(UFG) domains with a transitional interface were fabricated by friction stir processing, in order to investigate the effect of interface constraint on the yielding and fracture behaviors. Tensile test revealed that the synergetic strengthening induced by elastic/plastic interaction between incompatible domains increases with increasing the area of constraint interface. The strain distribution near interface and the fracture morphology were characterized using digital image correlation technique and scanning electron microscopy, respectively. Fracture dimples preferentially formed at the interface, possibly due to extremely high triaxial stress and strain accumulation near the interface. Surprisingly, the CG domain was fractured by pure shear instead of the expected voids growth caused by tensile stress.展开更多
Nordic design has also been called the ＂Scandinavian＂ design, with the best reputation in the international design field, especially in furniture, industrial products and other fields. Scandinavian design, with simp...Nordic design has also been called the ＂Scandinavian＂ design, with the best reputation in the international design field, especially in furniture, industrial products and other fields. Scandinavian design, with simple but not easy product appearance and shape, perfect man-machine interface, and very humane exotic customs, has led the global design industry trend, touching consumers＇ hearts all over the world since several decades of years ago. Dematerialization factors bound in Nordic-design are the root cause of the classic achievements. Dematerialization fully contains human touch, human factors. This is focusing on people-oriented design concepts, reflecting the best harmonious development of the modern world＇s ideas and themes. This article mainly takes Scandinavian-product design as an example-furniture and industrial design, and makes further exploration and research of dematerialization factors contained by products.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos.52171117,52001161,51927801,51871111)JianHua Research Foundation of Hebei University of Technology,China(Nos.HB1921,HB1920)the Natural Science Foundation of Jiangsu Province,China(Nos.BK20200695,BK20202010)。
基金Projects(11672195,51301092) supported by the National Natural Science Foundation of ChinaProject(2016JQ0047) supported by Sichuan Youth Science and Technology Foundation,China
文摘Heterogeneous-structured Cu samples composed of coarse-grained(CG) and ultrafine-grained(UFG) domains with a transitional interface were fabricated by friction stir processing, in order to investigate the effect of interface constraint on the yielding and fracture behaviors. Tensile test revealed that the synergetic strengthening induced by elastic/plastic interaction between incompatible domains increases with increasing the area of constraint interface. The strain distribution near interface and the fracture morphology were characterized using digital image correlation technique and scanning electron microscopy, respectively. Fracture dimples preferentially formed at the interface, possibly due to extremely high triaxial stress and strain accumulation near the interface. Surprisingly, the CG domain was fractured by pure shear instead of the expected voids growth caused by tensile stress.
文摘Nordic design has also been called the ＂Scandinavian＂ design, with the best reputation in the international design field, especially in furniture, industrial products and other fields. Scandinavian design, with simple but not easy product appearance and shape, perfect man-machine interface, and very humane exotic customs, has led the global design industry trend, touching consumers＇ hearts all over the world since several decades of years ago. Dematerialization factors bound in Nordic-design are the root cause of the classic achievements. Dematerialization fully contains human touch, human factors. This is focusing on people-oriented design concepts, reflecting the best harmonious development of the modern world＇s ideas and themes. This article mainly takes Scandinavian-product design as an example-furniture and industrial design, and makes further exploration and research of dematerialization factors contained by products.
