Analysis of Optimal Autofrettage Pressure on CFRP Pressure Vessels Using ANSYS
For the pressure vessels made of high-strength Carbon Fiber Reinforced Plastics (CFRP) and Aluminum liner,the strength is provided by the CFRP,but the liner leak is always the bottleneck of the vessels safety.The carrying capacity and anti-fatigue ability of CFRP pressure vessels is largely depend on the elastic deformation range.In this research the principle of autofrettage is analyzed,the mechanical character of a certain 2 liters pressure vessel is analyzed using finite element software ANSYS,and the optimal autofrettage pressure is calculated by optimization method.The results showed that the stresses of the liner under working pressure were decreasing while applying the autofrettage pressure.The liner would gain the best plastic level under the appropriate autofrettage pressure.
finie element method CFRP optimization autofrettage pressure
Liu dongxia Liang li Bao xinglei
College of Resources and Civil Engineering,North-eastern University,Shenyang,Liaoning,P.R.China;Coll College of Resources and Civil Engineering,North-eastern University,Shenyang,Liaoning,P.R.China MCC sadie engineering technology co.,LTD,Chongqing,P.R.China
国际会议
武汉
英文
184-188
2013-06-15（万方平台首次上网日期，不代表论文的发表时间）