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Author: RL. Tregoning Publisher: ISBN: Category : Cracking resistance Languages : en Pages : 24
Book Description
A mismatched welded component exists when the strength of the weld material is different than the strength of the base material. This research examined the effect of weld joint geometry and the mismatch level on the strength and fracture performance of high-strength steel weld components. Eleven different welded systems were constructed with the mismatch ranging between -36% to +47% and various weld joint profiles to sculpt fusion zone widths between 2 and 13 mm at the crack tip. Instrumented tension tests were utilized to characterize weldment strength behavior, while single-edge bend J-R curve testing of short (a/W = 0.15) and deeply (a/W = 0.5) cracked specimens was conducted to measure both baseline weld metal toughness properties and to determine the fracture performance of mismatched systems. The results indicate that more contact strengthening occurs in beveled, structural undermatched weldments compared to straight-sided welds. Flawed undermatched performance is highly dependent on the fusion zone width as well, while the degree of mismatching is a secondary effect. As the zone width decreases, the apparent tearing resistance also decreases. The overall performance of undermatched systems, however, can still be better than overmatched systems hen the inherent toughness of the overmatching weld metal consumable is poor.
Author: RL. Tregoning Publisher: ISBN: Category : Cracking resistance Languages : en Pages : 24
Book Description
A mismatched welded component exists when the strength of the weld material is different than the strength of the base material. This research examined the effect of weld joint geometry and the mismatch level on the strength and fracture performance of high-strength steel weld components. Eleven different welded systems were constructed with the mismatch ranging between -36% to +47% and various weld joint profiles to sculpt fusion zone widths between 2 and 13 mm at the crack tip. Instrumented tension tests were utilized to characterize weldment strength behavior, while single-edge bend J-R curve testing of short (a/W = 0.15) and deeply (a/W = 0.5) cracked specimens was conducted to measure both baseline weld metal toughness properties and to determine the fracture performance of mismatched systems. The results indicate that more contact strengthening occurs in beveled, structural undermatched weldments compared to straight-sided welds. Flawed undermatched performance is highly dependent on the fusion zone width as well, while the degree of mismatching is a secondary effect. As the zone width decreases, the apparent tearing resistance also decreases. The overall performance of undermatched systems, however, can still be better than overmatched systems hen the inherent toughness of the overmatching weld metal consumable is poor.
Author: Walter G. Reuter Publisher: ASTM International ISBN: 0803128991 Category : Languages : en Pages : 778
Book Description
Covering the whole of Asia and the Pacific region, this text provides both an analytic overview and specific data for each of the 60 countries. Introductory chapters cover regional issues, including: a regional review with the year's trends, developments and key events' analysis of the threat of terrorism in the region; the effects of deflation on the economy; the water crisis and its impact on the poor; and the successes and failures of micro-credit in the region.
Author: Hari Vasudevan Publisher: Springer ISBN: 9811324905 Category : Technology & Engineering Languages : en Pages : 697
Book Description
This book presents the outcomes of the International Conference on Intelligent Manufacturing and Automation (ICIMA 2018) organized by the Departments of Mechanical Engineering and Production Engineering at Dwarkadas J. Sanghvi College of Engineering, Mumbai, and the Indian Society of Manufacturing Engineers. It includes original research and the latest advances in the field, focusing on automation, mechatronics and robotics; CAD/CAM/CAE/CIM/FMS in manufacturing; product design and development; DFM/DFA/FMEA; MEMS and Nanotechnology; rapid prototyping; computational techniques; industrial engineering; manufacturing process management; modelling and optimization techniques; CRM, MRP and ERP; green, lean, agile and sustainable manufacturing; logistics and supply chain management; quality assurance and environment protection; advanced material processing and characterization; and composite and smart materials.
Author: V.V. Panasyuk Publisher: Newnes ISBN: 0080983731 Category : Technology & Engineering Languages : en Pages : 781
Book Description
The 8th International Conference on Fracture (ICF8), held in Kyiv, Ukraine, attracted 550 delegates from 30 countries with over 700 papers presented. This volume contains a representative selection of 72 articles of the highest standard from internationally renowned experts in the field. Principal topics covered include: mechanics and criteria of fracture, stress-strain analysis in solids with cracks, physics and mechanics of fracture, dynamic fracture, environmental effects, temperature influence on fracture, advanced and special-purpose materials engineering applications of fracture mechanics, fracture mechanics and strength of welded joints and structures, testing techniques and failure diagnostics. For anyone working in fracture mechanics and the performance of materials, this volume provides a valuable snapshot of the major recent developments in the field.
Author: Jin Jiang Publisher: John Wiley & Sons ISBN: 3527831843 Category : Technology & Engineering Languages : en Pages : 245
Book Description
Welded High Strength Steel Structures Understand the impact of fatigue on high strength steel joints with this comprehensive overview High strength steels are highly sought after for industrial and engineering applications ranging from armored vehicles to welded engineering components built to withstand considerable stress. The mechanical properties of welded joints made from high strength steel are integrally linked to the specific welding process, which can have an enormous impact on fatigue performance. Welded High Strength Steel Structures: Welding Effects and Fatigue Performance provides a comprehensive analysis of high strength steel joints and the ramifications of the welding process. It guides readers through the process of performing thermal analysis of high strength steel structures and evaluate fatigue performance in the face of residual stress. The result is a volume with innumerable use cases in engineering and manufacture. Welded High Strength Steel Structures readers will also find: An author with decades of experience in research and engineering Numerous studies of various classes of high strength steel joints Studies on tubular structures for welding residual stress Welded High Strength Steel Structures is a must-own for welding specialists, materials scientists, mechanical engineers, and researchers or industry professionals in related fields.
Author: RL. Tregoning
Author: RL. Tregoning
Author: Robert S. Piascik
Author: Walter G. Reuter
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Author: 
Author: Hari Vasudevan
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Author: V.V. Panasyuk
Author: Yapei Zhang
Author: Jin Jiang