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of casting materials were numerically calculated by finite element analysis (FEA). Also, the thermal deformation such as displacement and stress distribution was calculated from the temperature results... solidification processes using the adjoint method. RICHMOND and TIEN [12] investigated thermal stress and air gap formation during the early stages of solidification in a rectangular mold. The metal casting......
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Fracture of thermal barrier coating with multiple surface cracks and delaminations: Interlayer effectFAN Xue-ling(范学领)1, XU Rong(许荣)1, M. Kikuchi2(1. State Key Laboratory for Strength and Vibration... mechanisms of interfacial delamination concomitant to surface crack was explored. Finite element model was developed to obtain the stress and energy release rate (ERR), which governs the propagation......
and strain rates: (a) 350 ℃, 0.1 s-1; (b) 430 ℃, 0.1 s-1; (c) 470 ℃, 0.1 s-1; (d) 510 ℃, 0.1 s-1 3.3 Flow stress equation The high temperature deformation process was controlled by thermal... Flow stress of 2197 Al-Li alloy during hot compression deformation WEI Xiu-yu(魏修宇), ZHENG Zi-qiao(郑子樵), FU Xin(付欣), CHEN Qiu-ni(陈秋妮) School of Materials Science and Engineering, Central South......
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of limestone on the hydration of Portland cements [J]. Cement and Concrete Research, 2008, 38(6): 848–860. [21] YOSHITAKE I, WONG H, ISHIDA T, NASSIF A Y. Thermal stress of high volume fly-ash (HVFA) concrete made with limestone aggregate [J]. Construction and Building Materials, 2014, 71: 216–225. [22] ZHU Bo-fang. Thermal stress and temperature control in mass concrete [M]. Beijing: China Water &......
stress occurs because of the great temperature difference between the surface area and the bulk of materials. Fracture is inevitable if the thermal stress reaches or exceeds the fracture strength...J. Cent. South Univ. (2012) 19: 887-891 DOI: 10.1007/s11771-012-1088-0 Fabrication and plasma arc thermal shock resistance of HfB2-based ultra high temperature ceramics WENG Ling(翁凌)1, HAN Wen-bo(韩文波......
because it lessens the residual thermal stress induced during fabricating process[10]. The SiCp/Cu composites were fabricated by squeeze casting process. The CET difference between Cu matrix and SiC... stress on matrix around SiC particles. Afterwards, the temperature variation ΔT would generate residual strain during thermal expansion testing. In elastic state, it would generate complex internal......
J. Cent. South Univ. (2020) 27: 1645-1653 DOI: https://doi.org/10.1007/s11771-020-4396-9 Evolution of surface roughness of a cast Al-Si-Cu piston alloy during thermal exposure BAO Tong(保彤)1, LI... for 2 h at temperatures ranging from 400 to 550°C. The evolution of surface roughness and microstructure of the alloy during thermal exposure was studied by combination methods of roughness profiles......
Finite Element Analysis of Residual Stress and Distortion in an Eccentric Ring Induced by Quenching ZHU Li-hua1,YAO Xin1,LI M. Victor1 (1.Portland State University, PO Box 751-ME, Portland... processes. Commercial FEA package ABAQUS/Standard 6.4 was used for the analyses along with user subroutines developed by the authors to model the thermal and mechanical constitutive behavior. The simulation......