| 1. | The total plate thickness is divided in some layers , single direction and bi - directional machining , as well as before and after residual stress relieving , are simulated , the distortions by original residual stress in the plate arising are received , making the experimental plate ( 250 55 45mm ) , and the plate is machined , get its distortion , the simulating results are validated by distortion value of the experimental plate , there is odds between them , but their distortion trend are coincident 3 、研究了铝合金板材材料去除过程中由残余应力释放引起变形的数值求解方法。采用有限元的方法模拟了铝合金板材在不同工艺条件浙江工业大学硕士学位论文下残余应力释放引起的变形问题,并制备试验件进行了变形实验验证,数值模拟结果与实验结果基本吻合。 |