A review of topology optimization for additive manufacturing: Status and challenges
Jihong Zhu, Han Zhou, Chuang Wang et al. · 12 Oct 2020
Topology optimization was developed as an advanced structural design methodology to generate innovative lightweight and high-performance configurations that are difficult to obtain with conventional ideas. Additive manufacturing is an advanced manufacturing technique building as-designed structures via layer-by-layer joining material, providing an alternative pattern for complex components. The integration of topology optimization and additive manufacturing can…
Machining of SiC ceramic matrix composites: A review
Qinglong An, Jie Chen, Weiwei Ming et al. · 12 Aug 2020
Continuous fiber reinforced SiC ceramic matrix composites (FRCMCs-SiC) are currently the preferred material for hot section components, safety–critical components and braking components (in the aerospace, energy, transportation) with high value, and have triggered the demand for machining. However, the high brittleness, anisotropy, and heterogeneity of materials bring great challenges to machining, due to high mechanical…
Review on active thermal protection and its heat transfer for airbreathing hypersonic vehicles
Yinhai Zhu, Wei Peng, Ruina Xu et al. · 30 Jun 2018
Hypersonic vehicles with turbojet, ramjet, and scramjet engines are expected to be widely applied to future transportation systems. Due to high-speed flight in the atmosphere, body outer surfaces suffer strong aerodynamic heating, and on the other hand, combustion chamber inter walls are under extremely high temperature and heat flux. Therefore, more efficient and stable active…
Large-eddy simulation: Past, present and the future
Yang Zhiyin · 24 Dec 2014
Large-eddy simulation (LES) was originally proposed for simulating atmospheric flows in the 1960s and has become one of the most promising and successful methodology for simulating turbulent flows with the improvement of computing power. It is now feasible to simulate complex engineering flows using LES. However, apart from the computing power, significant challenges still remain…
Recent progress of residual stress measurement methods: A review
Jiang Guo, Haiyang Fu, Bo Pan et al. · 15 Nov 2019
Residual stress is one of the main factors affecting the mechanical properties of materials, such as their strength, plasticity and surface integrity. For instance, tensile stress conditions can adversely affect material performance or component life, while compressive stress conditions can improve material fatigue strength. During the processing of integrated aviation structures, machining deformation caused by…
