By the conditions of plasticstability of a column, the critical coning of die cavity is derived. conditions under which plastic instability can be avoided during upsetting a...
利用压杆塑性稳定条件,导出了锥腔的临界角;提出了不产生塑性失稳镦锻的综合条件。
2
By the conditions of plasticstability of a column, the critical coning of die cavity is derived. conditions under which plastic instability can be avoided during upsetting are proposed.
利用压杆塑性稳定条件,导出了锥腔的临界角;提出了不产生塑性失稳镦锻的综合条件。
3
During the past decade advances in computerisation have resulted in major changes in space structure design, and int he analysis of their stability and plastic behaviour.