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For the sake of a more accurate shell boundary and calculation of radiation heat transfer in the Directional Solidification (DS) process, a radiation heat transfer model based on the Finite Element Method (FEM) is developed in this study. Key technologies, such as distinguishing boundaries automatically, local matrix and lumped heat capacity matrix, are also stated. In order to analyze the effect...
Thermo-mechanical fatigue (TMF) test was performed in a [001] oriented single crystal superalloy TMS-75. After TMF tests, detailed microstructural evolution were observed from the interior and outer surfaces of the specimens. The path of the crack initiation and propagation on the failure surface of the ruptured specimen has a concrete representation. It was found that the distribution of deformation...
Firstly The calculating formulas for the strength of H-beams with corrugated webs under partial compressive edge loading are summarized. Then, ten specimens were tested to study the failure mode and the bearing capacity, together with the non-linearity finite element method. The results show that the local compressive strength of the beams with corrugated is higher than the beams with plane webs,...
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