Method of Entry Layout under Synergistic Effects of Abutment Stress and Dynamic Stress

Figure 6

Dynamic threshold algorithm. The main process includes four sections. In the first section, the calculation of static stress is carried out using the numerical simulation model until the stress keeps balance. In the second section, the judging criteria of DDT and DLT are determined using the method of zero growth DDI of plastic failure zone and the engineering-permitted limitation displacement method. In the third section, the calculation of servo stress wave is carried out using the numerical simulation model until the stress wave meets the judging criteria and the accuracy requirement. Finally, DDT and DLT are recorded.