In this paper, Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading. The phenomenon that loading paths do not...In this paper, Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading. The phenomenon that loading paths do not coincide with unloading paths has been found. Numerical results are given for cylindrically curved cross-ply panels subjected to uniform uniaxial compression under two types of boundary conditions. The influence of the number of layers, the panels curvature and the initial imperfection on the postbuckling paths is discussed.展开更多
In-post internship is a way for colleges and universities to make full use of the cooperative relationship between enterprises to transport professional talents and technology. Through the cooperation between schools ...In-post internship is a way for colleges and universities to make full use of the cooperative relationship between enterprises to transport professional talents and technology. Through the cooperation between schools and enterprises, it is an important means to effectively improve students' overall skills, shorten the time for students to adapt to the job and improve employment competitiveness. The employment practice course held by colleges and universities is of great significance to improve students' employment ability. However, in practice, the situation of students in colleges and universities transforming into employment through fixed post practice is not very good, and there are still deficiencies in policies, construction of teachers and participation of enterprises. Based on these hot issues, this paper conducts relevant research and proposes appropriate solutions.展开更多
Developing a 'near-zero emission' coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the develo...Developing a 'near-zero emission' coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the development strategy, implementation pathways and key priorities of China’s 'near-zero emission' coal-based clean energy ecosystem, and in turn proposes specific measures to underpin the development and implementation of such system.展开更多
文摘In this paper, Dynamic Relaxation Method is applied to study the postbuckling path of cylindrically curved panels of laminated composite materials during loading and unloading. The phenomenon that loading paths do not coincide with unloading paths has been found. Numerical results are given for cylindrically curved cross-ply panels subjected to uniform uniaxial compression under two types of boundary conditions. The influence of the number of layers, the panels curvature and the initial imperfection on the postbuckling paths is discussed.
文摘In-post internship is a way for colleges and universities to make full use of the cooperative relationship between enterprises to transport professional talents and technology. Through the cooperation between schools and enterprises, it is an important means to effectively improve students' overall skills, shorten the time for students to adapt to the job and improve employment competitiveness. The employment practice course held by colleges and universities is of great significance to improve students' employment ability. However, in practice, the situation of students in colleges and universities transforming into employment through fixed post practice is not very good, and there are still deficiencies in policies, construction of teachers and participation of enterprises. Based on these hot issues, this paper conducts relevant research and proposes appropriate solutions.
文摘Developing a 'near-zero emission' coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the development strategy, implementation pathways and key priorities of China’s 'near-zero emission' coal-based clean energy ecosystem, and in turn proposes specific measures to underpin the development and implementation of such system.
