Welded design: theory and practice

Welded design is often considered as an area in which there's lots of practice but little theory. Welded design tends to be overlooked in engineering courses and many engineering students and engineers find materials and metallurgy complicated subjects. Engineering decisions at the design stage need to take account of the properties of a material - if these decisions are wrong failures and even catastrophes can result. Many engineering catastrophes have their origins in the use of irrelevant or invalid methods of analysis, incomplete information or the lack of understanding of material behaviour. The activity of engineering design calls on the knowledge of a variety of engineering disciplines. With his wide engineering background and accumulated knowledge, John Hicks is able to show how a skilled engineer may use materials in an effective and economic way and make decisions on the need for the positioning of joints, be they permanent or temporary, between similar and dissimilar materials. This book provides practising engineers, teachers and students with the necessary background to welding processes and methods of design employed in welded fabrication. It explains how design practices are derived from experimental and theoretical studies to produce practical and economic fabrication. Provides specialist information on a topic often omitted from engineering coursesExplains why certain methods are used, and also gives examples of commonly performed calculations and derivation of data.

Front Cover; Welded Design -- Theory and Practice; Copyright Page; Table of Contents; Preface; Introduction; Chapter 1. The engineer; 1.1 Responsibility of the engineer; 1.2 Achievements of the engineer; 1.3 The role of welding; 1.4 Other materials; 1.5 The welding engineer as part of the team; Chapter 2. Metals; 2.1 Steels; 2.2 Aluminium alloys; Chapter 3. Fabrication processses; 3.1 Origins; 3.2 Basic features of the commonly used welding processes; 3.3 Cutting; 3.4 Bending; 3.5 Residual stresses and distortion; 3.6 Post weld heat treatment.

Chapter 4. Considerations in designing a welded joint4.1 Joints and welds; 4.2 Terminology; 4.3 Weld preparations; 4.4 Dimensional tolerances; 4.5 Access; Chapter 5. Static strength; 5.1 Butt welds; 5.2 Fillet welds; Chapter 6. Fatigue cracking; 6.1 The mechanism; 6.2 Welded joints; 6.3 Residual stresses; 6.4 Thickness effect; 6.5 Environmental effects; 6.6 Calculating the fatigue life of a welded detail; Chapter 7. Brittle fracture; 7.1 Conventional approaches to design against brittle fracture; 7.2 Fracture toughness testing and specification; 7.3 Fracture mechanics and other tests.

Chapter 8. Structural design8.1 Structural forms; 8.2 D…