成形过程数值模拟的非增量时一空算法*

本文针对计及几何、材料、接触摩擦等耦合作用的高度非线性的加工成形过程数值模拟和计算分析工作,建议了非增量时-空求解算法。本文的非增量算法,系在整个时间域和空间域上迭代求解,与常见的Newton-Raphson算法明显不同。本文所附算例,进一步说明了本算法的正确性和可行性。

A Non-lncremental Time-Space Algorithm for Numerical Simulation of Forming Process

A non-incremen tal time-space algorithm is proposed for numerical analysisof forming process with the inclusion of geometrical, material, contact-frictionalnon-linearit ies. Unlike the widely used Newton-Raphson counterpart, the presentscheme features an iterat ive solut ion procedure on ent ire time and space domaintvalidity and feasiblity of the present scheme is further justified by the numerical investigation herewith presen ted.