Engineering Failure Analysis
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3.11
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#1Mustapha Mohammed Alhaji (FUTMINNA: Federal University of Technology Minna)H-Index: 1
#2Musa Alhassan (FUTMINNA: Federal University of Technology Minna)H-Index: 1
Last. Hamidu Abdulkadir (Ibb University)
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Abstract null null Sudden failure of road pavement structure from Minna through Kataeregi to Bida in Niger State, Nigeria, occurred in 2020 due to high traffic volume of overloaded trucks. The high traffic volume was necessitated by the collapse of two alternative routes (Tegina-Makera-Mokwa and Lambata-Bida-Mokwa roads) that were previously being used by these heavy trucks. Methodology used to study the causes of this sudden failure includes interaction with the Niger State Ministry of works, v...
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#1A. Rivaz (IAU: Islamic Azad University, Tehran)H-Index: 1
#2S.H. Mousavi Anijdan (IAU: Islamic Azad University, Tehran)H-Index: 21
Last. Hamidreza Jafarian (IUST: Iran University of Science and Technology)H-Index: 20
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Abstract null null The harsh operating environment, and the extreme working condition, of the steam turbine blades have led to the use of alloys with special characteristics. Of these properties are high corrosion resistance and excellent rupture strength. The most widely used alloys in this category are heat treatable martensitic stainless steels. They provide a wide range of mechanical properties. In that sense, this research is focused on one of the most commonly used alloys of these series; ...
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#1Shifang Wu (SJTU: Shanghai Jiao Tong University)
#2Ming Kang (SJTU: Shanghai Jiao Tong University)
Last. Weizhe Wang (SJTU: Shanghai Jiao Tong University)H-Index: 11
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Abstract null null The aim of this study is to analyze the local change in stress-strain and damage behavior in an inlet groove structure of a power plant component under the effect of the crack geometrical constraint. A robust constitutive model is used to describe the inelastic behavior of advanced 9-12% Cr heat-resistant steels at high temperature. Steam temperature and loading profiles corresponding to the idealized startup, holding and shutdown sequence of the structure are assumed. Thirtee...
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#1Yanting Cheng (SCUT: South China University of Technology)H-Index: 2
#2Yanpeng Hao (SCUT: South China University of Technology)H-Index: 12
Last. Licheng Li (SCUT: South China University of Technology)H-Index: 12
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Abstract null null In recent years, buffer layer failure of high voltage crosslinked polyethylene (XLPE) cables have occurred many times. The typical feature is the appearance of holes surrounded by white powders on the surface of water blocking tape. Although the generation of white powders is possibly related to the moisture of water blocking tape, the failure mechanism of buffer layer is not yet clear. In this paper, the effects of moisture content on the amount of white powders and volume re...
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#1Jiakun Lv (CUMT: China University of Mining and Technology)
#2Zhijun Wan (CUMT: China University of Mining and Technology)H-Index: 15
Last. Sifei Liu (CUMT: China University of Mining and Technology)H-Index: 4
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Abstract null null Dynamic pressure roadway affected by the mining activity (DPRAMA), which is aimed at promoting the efficiency of panel replacement, is a new mode of roadway arrangement in neighboring panels. However, the failure characteristics and stability control of DPRAMA surrounding rock are rarely reported. In this study, the fragment grade of two-side coal mass of DPRAMA in Gaojiapu Coal Mine was evaluated using the basic measurement scale-fragment grade evaluation method. Then, the ev...
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#1Dao-Hang Li (Beijing University of Technology)H-Index: 6
#2De-Guang Shang (Beijing University of Technology)H-Index: 16
Last. Wei Sun (University of Nottingham)H-Index: 32
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Abstract null null In this paper, a new life assessment framework is proposed based on the elastic-viscoplastic modeling and the damage behavior for the structural component under multiaxial non-proportional loading at high temperature. The viscoplastic constitutive model with the ability to capture the non-proportional hardening effect is used to obtain the stress–strain fields, in which a new method based on the rotation of strain axis is proposed to evaluate the notch rotation factor. The dam...
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#1Ved Prakash Sharma (NITSRI: National Institute of Technology Srinagar)
#2Naresh V. Datla (IITD: Indian Institute of Technology Delhi)H-Index: 13
Abstract null null In this research, cohesive parameters were extracted for Sn-0.7Cu/Cu solder joint failure. Double cantilever beam (DCB) specimens were used to study the fracture of the joint under both mode-I and mixed-mode conditions. A bilinear traction separation law (TSL) was used to capture the failure of the joint. Increasing the bond-line thickness from 110 to 880 µm increased the critical energy release rate for crack initiation (Gci) and maximum traction of the bilinear TSL. This inc...
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#1Sahbi Tamboura (University of Sousse)H-Index: 3
#2Abir Abdessalem (ENS: École Normale Supérieure - PSL)H-Index: 2
Last. Abbas Tcharkhtchi (CNRS: French National Centre for Scientific Research)H-Index: 24
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Abstract null null Sheet Molding compound (SMC) composites were subjected to water immersion tests in order to study their durability since such composites are of interest in automotive applications. Water sorption tests were conducted by immersing specimens in distilled water at 25-90°C for different time durations. In order to investigate the combined action of water and temperature over time on composite mechanical behavior, tensile tests and quasi-static loading were conducted. The mechanica...
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#1Tin V. Do (OU: The Open University)H-Index: 7
#2Thong M. Pham (Curtin University)H-Index: 24
Last. Trong Phuoc Nguyen (OU: The Open University)H-Index: 3
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Abstract null null This study investigates the dynamic response, damage mechanisms, and residual capacity of precast hollow reinforced concrete beams with prestress tendons (HRCBPT) under impact loads by using High-Fidelity Physics-Based (HFPB) finite element (FE) models. The accuracy of the numerical model developed in this study has been fully calibrated against two different drop-weight impact tests available in open literature, including a scaled hollow reinforced concrete beam (HRCB) and a ...
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