h. pashaei

With the advancement of the construction industry, the use of high-strength steel has gradually increased. High-strength steels can withstand higher stresses compared to conventional steels, yet they exhibit less ductility. Currently, due to their high cost, they are primarily utilized in specialized industries. Connecting two steel pieces requires the use of welding or bolts. Fillet welding is the simplest and most commonly used type of welding. Therefore, investigating this type of weld in high-strength steel is of great importance. Fillet welds can also have different angles in the direction of applied force, which itself affects their strength. In this study, the influence of the welding angle on the axis of the applied force has been examined. First, an experimental model, considering the effect of defects in the weld, was modeled and validated using ABAQUS software. Subsequently, specimens were analyzed at various angles. The maximum strength of the weld and its ductility were investigated. Additionally, the recommended strength of the American steel code for welds at different angles was examined. The results showed a 14% average difference from the code. Unlike mild steels, an increase in the welding axis angle with the direction of the applied force increased the ductility of the fillet weld.

The aim of the research was investigating the impact of cultural, educational and social factors on attitudes of Tabriz Talent Students Schools towards reading and studying.

The population of the research was Tabriz Girly Talent students. The method of the research was qualitative and the sampling was done as purposeful, Convenience, and snowball. 14 students selected as sample and data gathered by semi-structured interview and analyzed and interpreted by Grounded Theory method.

Findings of the research showed that lived experience of students in their childhood such as accompanying of parents in reading the child’s favorite books, cause to raising in information problem solving and positive attitude towards reading and studying in older ages. Investigating educational factors showed that usually studying and book reading in talent student's schools is mainly based on text, educational help or Olympiad books. Other research findings also showed that in these schools the library is often overlooked and most students say they do not refer to the librarian for advice. Finally, findings of the search from social factors showed that most Students gain insight into book reading and studying during school and through friends or teachers.