Mechanical Properties and Fracture of Materials

摘要: Ensuring the integrity of structural components is paramount for safe and reliable operation engineering plant across a wide range industries, including process power, aerospace, transport. Safety cases are often made using multilegged approach (Bullough, R.; Burdekin, F. M.; Chapman, O. J. V.; Green, V. Lidbury, D. P. G.; Swingler, N.; Wilson, R. Int. Press. Vess. Piping, 2001, 78, 539–552), in which number separate distinct safety arguments combined to build robust case. These include, but not limited to, design basis, quality construction, nondestructive examination (NDE), defect assessment. The development assessment argument or ‘leg’ case thus critically dependent on engineer's ability assess severity defects that either present from start life may form during service. Start-of-life include welding such as porosity, slag inclusions, lack fusion, cold-cracking, (or) undercuts (Welding Handbook, Fundamentals Welding, 7th ed.; Charlotte Weisman, Ed.; American Welding Society, 1976; pp 209–215). mechanisms by can service stress corrosion cracking (SCC), fatigue, corrosion-fatigue, creep. This chapter provides an overview mechanical properties materials describes fracture mechanics principles, used widely structures.