@article{Liu_2012 author = {Xia Liu and Haim Waisman and Jacob Fish}, title = {A NEW CRACK TIP ENRICHMENT FUNCTION IN THE EXTENDED FINITE ELEMENT METHOD FOR GENERAL INELASTIC MATERIALS}, journal = {International Journal for Multiscale Computational Engineering}, issn = {1543-1649}, year = {2012}, volume = {10}, number = {4}, pages = {343--360} }