In this paper, the crack growth and variations of stress intensity factor in rotary disks with central hole is studied. For modeling and analyzing samples, the FRANC2D software is used and to predict stress intensity factor, DACE emulator (Design & Analysis of Computer Experiments) is used and, at the end comparison between results of modeling and results of simulator has been done. The emulato...

The investigation of fatigue strength needs an accurate solution and reliable values of the stress intensity factor (SIF). In this study, SIF of load-carrying cruciform welded joints has been evaluated using finite element method (FEM), and compared with the available solutions from literature. Load-carrying cruciform welded joints with isosceles triangles and non-isosceles triangle fillet weld...

Bu çalışmada, asfalt beton (AC) numunelerinde çatlak oluşumunu ve yayılmasını araştırmak için Yarı Dairesel Disk Eğilme (SCB) numuneleri ile deneysel, analitik sayısal analiz araştırmaları yapılmıştır. çalışmanın amacı, AC malzemelerin karma mod I-II (çekme kesme) kırılmasını etmek ASTMD8044 standardının sadece I değil modu test etmede uygulanabilirliğini araştırmaktır. Gerilme dağılımı ilerlem...

Problems in fracture mechanics are difficult when the appropriate analysis is unspecified, which very common most real-life situations. Finite element modeling thus demonstrated to be an essential technique overcome these problems. There currently various software tools available for problems, but they usually use, and obtaining accurate results not obvious task. This paper illustrates some pro...

Welding is a commonly applied joining method in many applications arctic and marine conditions, e.g., ship offshore structures, energy production equipment. Such are usually subjected to fluctuating load during decades-long service, they may experience millions of cycles. Consequently, fatigue strength design acceptable flaw sizes the welded details these structures among most important criteri...

In this paper, a compression-to-tensile load converter device is developed to determine the anisotropic tensile strength of brittle material. A cubic sample with an internal pore was used as the test specimen, and a series of finite element analysis and DDM simulations were performed thereafter to analyse the effect of pore dimensions on the stress concentration, as well as to render a suitable...

Joints within the Catskill Delta complex are believed to be natural hydraulic fractures and abundant indirect evidence supports this claim. The indirect evidence is based on many observations of joint surface morphology and joint spacing among other features. The Alleghanian orogeny left a unique imprint on the joint surfaces also, indicating a rotating horizontal compressive stress field. Nume...