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Jixie qiangdu
Scopus
ISSN 1001-9669 · Editorial Office of Journal of Mechanical Strength · 2,661 articles in the index
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Journal Article
Prediction of metal fatigue life based on the infrared thermographic technique and the intrinsic damage dissipation
ObjectiveAiming at the problems of long cycle, high cost of traditional group method for testing metal fatigue S-N curves and insufficient targeting of existing infrared thermographic correlation models, a fatigue life prediction method based on intrinsic damage dissipation was proposed to achieve…
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Journal Article
Thermo-mechanical coupling analysis and fatigue life prediction of the drum brake for tracked work vehicles
ObjectiveIn response to the high braking performance requirements for extended tracks, the friction discs with high friction coefficient and the large brake chambers were utilized to enhance the braking force. The temperature field, stress field and fatigue life of the improved brake under typical…
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Journal Article
Effect of medium/high temperature tempering on the strength and fatigue properties of 60Si2CrV spring steel
ObjectiveAims to investigate the lack of test data and microscopic mechanism analysis of 60Si2CrV spring steel under high-temperature tempering. A systematic comparison was conducted between medium-temperature (420 ℃) and high-temperature (580 ℃) tempering.MethodsMultidimensional test methods…
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Journal Article
Simulation study on residual stress and fatigue life of the 7050 lug holes after cold extrusion strengthening
ObjectiveBased on the fact that the quality of cold extrusion strengthening is closely related to the selection of process parameters, this study investigates the effects of different process parameters on the residual stress and fatigue life of 7050 aluminum alloy lug holes after cold extrusion…
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Journal Article
ANALYSIS OF STRESS INTENSITY FACTOR AT THE CRACK TIP BASED ON THERMAL-MECHANICAL COUPLING
ObjectiveTo clarify the failure mechanism and influencing factors of contact fatigue， improve the fatigue resistance of mechanical parts， and extend the fatigue life， research on the initiation and propagation mechanism of surface cracks under contact fatigue was carried out.MethodsThe influencing…
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Journal Article
A fault prediction method for generator bearings of offshore wind turbines based on DBO-XGBoost model and EWMA control chart
ObjectiveTo detect faults in the generator bearings of offshore wind turbines in a timely manner, a DBO-XGBoost prediction model for predicting generator bearing temperature was proposed based on the dung beetle optimizer (DBO) algorithm and eXtreme Gradient Boosting (XGBoost) model. Combined with…
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Journal Article
ANALYSIS OF RESIDUAL STRESS ON TOOTH SURFACE OF SPIRAL BEVEL GEAR WITH SINGLE ABRASIVE GRINDING
ObjectiveTo reveal the influence law of grinding parameters on the residual stress of spiral bevel gear tooth surfaces, solve the problem of insufficient research on the correlation mechanism between process parameters and residual stress in existing studies, and further optimize the grinding…
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Journal Article
EFFECT OF RESIDUAL STRESS ON DYNAMIC PROPERTIES OF THE MICRO-MEMBRANE
ObjectiveAiming at the residual stress problem in micro-electro-mechanical system (MEMS) films, research on the dynamic performance of micro-membrane with residual stress was conducted.MethodsFirstly, a mathematical model of thin micro-plates with residual stress was established. The influence law…
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Journal Article
Study on the failure behavior of nanoparticle-based silver wires based on an electromechanical coupling cohesive zone model
ObjectiveTo investigate the influence of the microstructure of nanoparticle silver wires on their mechanical and electrical properties, finite element modeling of the microstructure of silver wires was conducted. A force-electric coupling cohesive zone model was established to simulate and analyze…
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Journal Article
Strength analysis of multisage fracturing string and study on its influence law
ObjectiveAiming at the string strength failure problem induced by the packer system during multi-stage fracturing, the investigation on the mechanical behavior of the string and the influence law of strength was carried out to ensure the safety of fracturing operations and the structural…
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Journal Article
RESEARCH ON FAST LOAD PREDICTION METHOD FOR STEERING SYSTEM BASED ON VEHICLE TRAJECTORY
ObjectiveTo address the difficulties in obtaining load data for traditional steering systems under real-world customer usage conditions, which hinders effective support for reliability design and test evaluation, a rapid prediction method for global loads of steering systems based on vehicle…
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Journal Article
Influence of crack shapes on crack propagation life of sucker rods in the corrosive environments
ObjectiveTo clarify the influence of different initial crack shapes on the fatigue life of sucker rods, crack propagation simulation and residual useful life (RUL) prediction were conducted on sucker rods in corrosive environments using FRANC3D fracture mechanics software.MethodsFirstly, the…
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Journal Article
Study on fatigue crack propagation behavior of welded joints of EH36 and EH690 dissimilar steels
ObjectiveEH36 and EH690 high-strength steels are widely used in offshore platforms, but their dissimilar welded joints have poor fatigue resistance and are prone to fracture failure. This study aims to investigate the fatigue crack propagation behavior and life characteristics of these welded…
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Journal Article
Study on compressive failure modes of TC2 stiffened panels with different welding processes
ObjectiveThe effects of different joining processes—riveting, spot welding, argon arc welding, and laser welding—on the compressive buckling behavior and failure modes of TC2 titanium alloy stiffened panels were investigated.MethodsIntegral stiffened panels were designed and fabricated for…
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Journal Article
Study on crashworthiness of offshore wind turbines under different wind loads
ObjectiveOffshore wind turbines are exposed to the risk of collision with vessels, where the effect of wind loads cannot be ignored. However, existing studies tend to adopt steady-state wind loads, which are inconsistent with actual conditions.MethodsBy adopting transient wind loads that are more…
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Journal Article
Prediction of steel fatigue strength based on mutual information feature selection and recursive feature elimination
ObjectiveTo address the challenges in fatigue strength prediction caused by limited data and high-dimensional feature space, a method combining mutual information feature selection and recursive feature elimination (MIFS-RFE) is proposed.MethodsFirstly, MIFS was used to identify crucial features…
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Journal Article
Contact load measurement method of wind turbine tapered roller bearings based on intelligent roller
ObjectiveTo address the challenge of directly measuring the contact load of large wind turbine tapered roller bearings, the main shaft bearing of a specific model wind turbine is taken as an example to implement intelligent modifications on the bearing rollers.MethodsFirstly, a load sensor and its…
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Journal Article
Research on meshing performance of high-order segmented topology modification in face gear pair
ObjectiveIn order to enhance the load-bearing performance of face gear transmission and reduce its sensitivity to installation misalignment, a high-order segmented topological modification method based on a predefined contact path was proposed.MethodsFirstly, 2nd-order and 4th-order segmented…
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Journal Article
Effects of ultrasonic impact treatment on surface residual stress and electrochemical properties of 42CrMo4 steel
ObjectiveTo solve the problems that 42CrMo4 steel (commonly used in mechanical components bearing dynamic loads) has reduced service life due to residual tensile stress and is susceptible to corrosion in harsh environments, the regulatory effect of ultrasonic impact treatment on its surface…
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Journal Article
Influence of different process parameters on the mechanical properties of porous structures of 316L stainless steel formed by SLM
ObjectiveTo obtain metal implants with mechanical properties close to those of human bone and to understand the laser melting forming mechanism.MethodsFirst, porous rhombic structures with a designed porosity of 80% were fabricated using stainless steel 316L via selective laser melting. Second…
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