钛合金与碳纤维复合身管在无后坐力炮中的应用分析

Application Analysis of Titanium Alloy and Carbon Fiber Composite Tube in Recoilless Gun

为满足现代装备轻量化要求,以无后坐力炮的钛合金与碳纤维复合身管为研究对象,采用静态水压试验方法测得变形率,分别与理论计算、数值模拟计算的变形率进行符合性验证,得到实测变形率与理论计算变形率误差在±5%以内,实测变形率与模拟计算变形率误差在±6%以内,变形率误差在可接受范围。对碳纤维复合材料身管进行水压爆破试验,结果表明:碳纤维T700和M46的安全应力和变形率分别为1.874 4 GPa、1.18%和1.465 9 GPa、0.6%,在该试验数据的基础上,使用实炮进行射击试验,测得的最大变形率为0.19%,该变形率小于0.6%,从工程应用角度考虑,钛合金内衬外缠碳纤维复合材料能够满足身管轻量化应用要求。

In order to meet the lightweight design requirements of modern equipment,the deformation rate of a recoilless gun tube,that is the titanium alloy with carbon fiber composite tube,was measured by static hydraulic test and compared with the theoretical calculation and numerical simulation value.The error between the measured deformation rate and the theoretical calculation value is within±5%.The error between the measured deformation rate and the simulated value is within±6%.The error is acceptable.The hydraulic bursting test of carbon fiber composite tube was carried out.The results show that the safety stress and deformation rate of carbon fiber T700 and M46 are 1.8744 GPa,1.18%and 1.4659 GPa,0.6%,respectively.On the basis of test data,the real firing test was carried out.The maximum deformation rate is 0.19%,which is less than 0.6%.From the perspective of engineering application,the titanium alloy liner wrapped with carbon fiber composite tube can meet the lightweight design requirements.