It is significant to investigate the stress-strain relationship of green sand to control the molding quality.Based on the oedometer test, the mechanics behavior of sand was studied.

• 摘要利用侧限压缩试验，研究了松散型砂在侧限应力状态下的力学行为，描述型砂压实状态的物理量，提出了型砂的瞬时压缩模量与压缩状态相关的假设。