作　　者： ; ; (姜晓平）;

机构地区： 华南理工大学机械与汽车工程学院

出　　处： 《塑料工业》 2012年第7期40-43,共4页

摘　　要： 注胚模具成型聚对苯二甲酸乙二醇酯(PET)瓶坯的一个成型周期分为注塑、保压、冷却阶段,模具受循环载荷影响,其关键零件模腔易出现疲劳破坏。应用ANSYS Workbench(AWB)建立模腔有限元模型,运用传热学理论,完成模腔一个工作周期的温度场,位移场及热应力场的仿真模拟,获得疲劳寿命云图,为注塑模具零件优化设计提供依据。 Embryo injection molding PET perform molding cycle was divided into injection,pressure maintaining and cooling.Influenced by cyclic loading,cavity was prone to have fatigue damage.An analysis method of injection molding cavity fatigue based on ANSYS Workbench（AWB）was proposed to established finite element model of the cavity.A simulation of temperature field,displacement,and thermal stress field and fatigue life for the cavity of a work cycle based on heat transfer theory was completed which provided the basis for the optimization design of the injection mold.

关 键 词： 疲劳破坏 热应力场 疲劳寿命 注塑模具

领　　域： [化学工程]