Numerical and experimental investigation of mixed?mode crack growth in aluminum alloys

نویسندگان

چکیده

Fatigue crack growth in Al 2024 and 7050 specimens was assessed experimentally numerically. In the experimental investigation, various specimen configurations loading conditions were used to achieve pure mode I, II, mixed I/II, I/III, I/II/III. Sample as follows: first, compact tension shear (CTS) reproduce mode-I initial mode-II conditions; second, surface (SCT) analyze behavior of semielliptical cracks mixed-mode third, hollow cylindrical (HC) with fatigue under complex stress state. numerical study, finite element method (FEM) simulations performed by means FRANC3D ABAQUS solver. The predictions validated results. These resulted be accurate estimation across broad range investigated conditions.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An atomistic investigation into the nature of near threshold fatigue crack growth in aluminum alloys

Despite decades of study, the atomic-scale mechanisms of fatigue crack growth remain elusive. Here we use the coupled atomistic–discrete dislocation method, a multiscale simulation method, to examine the influence of dislocation glide resistance on near-threshold fatigue crack growth in an aluminum alloy. The simulations indicate that the threshold increases with an increase in dislocation glid...

متن کامل

Investigating the Effects of Cold Bulge Forming Speed on Thickness Variation and Mechanical Properties of Aluminum Alloys: Experimental and Numerical

In this work, cold bulge forming of an Aluminium-Magnesium (Al-Mg) sheet with a solid bulging medium is performed experimentally and numerically.  Mechanical properties and thickness variations of Al-Mg sheet are evaluated before and after the forming process.  The results indicated that the Al-Mg sheet has taken the desired shape without necking using the cold bulge forming process.  Also, the...

متن کامل

Numerical Investigation on Stable Crack Growth in Plane Stress

Large deformation finite element analysis has been carried out to investigate the stress-strain fields ahead of a growing crack for compact tension (a/W=0.5) and three-point bend (a/W=0.1 and 0.5) specimens under plane stress condition. The crack growth is controlled by the experimental J-integral resistance curves measured by Sun et al. The results indicate that the distributions of opening st...

متن کامل

Experimental and numerical crashworthiness investigation of hybrid composite aluminum tubes under dynamic axial and oblique loadings

This research deals with axial and oblique impact crash tests on simple and hybrid composite tubes. Axial and oblique impact tests have been generated on simple and hybrid composite tubes with one, two and three layers. A drop test rig was used to conduct the experiments. Furthermore, in order to gain more detailed knowledge about the crash process, finite element simulations of the experim...

متن کامل

experimental and numerical investigation of groove pressed ufg pure aluminum

fabrication of ultrafine grained materials by imposing severe plastic deformation for improvement of mechanical and physical properties of metals has been the focus of many researches over the past few years. in this process, a sheet is subjected to repetitive shear deformation conditions by utilizing asymmetrically grooved and flat dies through alternate pressing. in this study, a 2mm thick co...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Fatigue & Fracture of Engineering Materials & Structures

سال: 2022

ISSN: ['1460-2695', '0160-4112', '8756-758X']

DOI: https://doi.org/10.1111/ffe.13786