Project(50325516) supported by the National Natural Science Foundation of China;Project(CG2003-GA005) supported by China Education and Research Grid(China Grid);Project(003019) supported by the Natural Science Foundation of Guangdong Province,China;Project(2009ZM0290) supported by the Fundamental Research Funds for the Central Universities,China
A new model for describing the compaction process of iron powder was proposed based on the continuum hypothesis and elliptical yield criterion.To simulate the densification behaviour,the constitutive model was impleme...
Porject(50325516) supported by the National Natural Science Foundation of China; Project(CG2003-GA005) supported by China Education and Research Grid (China Grid); Project(003019) supported by the Natural Science Foundation of Guangdong Province, China
The constitutive relation of powder material was derived based on the assumption that metal powder is a kind of elasto-plastic material, complying with an elliptical yield criterion. The constitutive integration algor...
Projects(50325516,50135020) supported by the National Natural Science Foundation of China;Project(003019) supported by the Natural Science Foundation of Guangdong Province,China
Some flow stress models was used to simulate the compaction of a cylindrical specimen.A new flow stress model was presented by analyzing and summarizing the powder compact experiment with different initial densities.C...