@article {22104,
	title = {Numerical Simulation of the Mechanical Properties and Failure of Heterogeneous Elasto-Plastic Materials},
	journal = {Tsinghua Science \&amp; Technology},
	volume = {12},
	number = {5},
	year = {2007},
	pages = {527-532},
	isbn = {1007-0214},
	author = {Yongqiang Chen and Sun, Shuli and Yi Liu}
}
