【摘要】 本文研究并实施了七波波纹管的爆炸成形，设计了成形装置，清楚地阐明了成形 的力学机理。对冲头速度、最大轴向压缩应力、管内水压、变形时的最大应变能和能 量散失都作了详细的推导，实测了冲头的加速度曲线。理论推导与实验结果符合很 好。本文为设计波纹管爆炸成形提供了理论依据。更多还原

【Abstract】 In this paper, research and experimental work on explosive forming of seven-bulge corrugated tubes is reported, forming device is presented, and forming mechanism is explained in detail. When a chemical explosive is detonated underwater, shaken waves will be produced in water which act on the platen to compress the end of the tube and lead to the volumn inside the tube reduced, and the water pressure increased drastically. As water is incompressible, some water in the tube will overflow from an aperture. Due to the simultaneous pressure of the platen and water, the tube-wall deforms outwards rapidly. But constrained by the dies, the desired bulging shape is thus formed. Also, this paper presents detailed derivations about the platen velocity, maximal axial compressive stress, water pressure in the tube, maximal strain potential energy and the energy dissipation. Accelleration curves of the platen were measured, the theoretical basis on the explosive forming of corrugated tubes is set here and an excellent consistence were attained between the theoretical derivations amid experimental results.更多还原