摘要
针对航空制造中的常用铆钉,利用有限元软件ABAQUS进行无预应力和有预应力2种情况下的数值仿真,研究铆接预应力对铆钉剪切力学性能的影响。利用分离式Hopkinson拉杆动态剪切试验,验证仿真方法的可行性。结果表明:铆钉铆接时的预应力使铆钉的剪切强度增大,因此在利用有限元分析铆钉的力学性能过程中,应该考虑预应力的影响。
To discuss the influence of pre-stress on the rivet shear mechanical properties, the pre-stressed and non pre-stressed numerical simulation with a aviation manufacturing commonly used rivet using the finite element software ABAQUS were carried out. To verify the feasibility of simulation method, the dynamic shear tests were carried out by using the split Hopkinson tension bar. The result shows that, the shear strength of the rivet will increase because of the pre-stress. The influence of pre-stress should be taken into account when using finite element method to study the mechanical properties of rivets.
出处
《航空科学技术》
2016年第3期69-73,共5页
Aeronautical Science & Technology
