西安理工大学学报Issue(2)：155-158,4.
胶印机咬纸牙在往复冲击载荷作用下的塑性变形
Plastic deformation of gripper in offset press under the action of repeated impact load
摘要
Abstract
In order to reveal the plastic deformation laws of gripper pad in offset press under the conditions of frequent impact load,repeated impact tests under low stress are carried out to simu-late the working process of gripper.Coordinate grid method is used to determine the distribution and evolution of plastic strain of 40Cr under repeated impact load.Finally,an experimental for-mula about plastic strain and impact time as well as the distance from the impacted surface is es-tablished.Results show that the accumulated deformation increases nonlinearly with an increase in impact time,the plastic strain reaches a maximum value on the sample surface,and decreases in approximate linearity with an increase in depth from surface.关键词
咬纸牙/40Cr/抗冲击/塑性变形Key words
gripper/40Cr/impact resistant/plastic deformation分类
轻工纺织引用本文复制引用
刘健,范涛,张海燕,侯和平..胶印机咬纸牙在往复冲击载荷作用下的塑性变形[J].西安理工大学学报,2015,(2):155-158,4.基金项目
国家自然科学基金资助项目（51305345）；陕西省自然科学基础研究计划资助项目（2014JQ6228）；西安理工大学科技新星科学研究计划资助项目（104-211404）。 （）
