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Fatigue & Fracture of Engineering Materials & Structures最新文献

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Strain distribution of a fir-tree tenon/mortise structure under combined high and low cycle fatigue loads 杉木榫卯结构在高低循环疲劳载荷作用下的应变分布
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-30 DOI: 10.1111/ffe.14374
Han Yan, Xin Ding, Dawei Huang, Xiaojun Yan, Xingyu Yang, Haohao Liu
{"title":"Strain distribution of a fir-tree tenon/mortise structure under combined high and low cycle fatigue loads","authors":"Han Yan,&nbsp;Xin Ding,&nbsp;Dawei Huang,&nbsp;Xiaojun Yan,&nbsp;Xingyu Yang,&nbsp;Haohao Liu","doi":"10.1111/ffe.14374","DOIUrl":"https://doi.org/10.1111/ffe.14374","url":null,"abstract":"<p>The fir-tree tenon/mortise structure in areo-engine suffers from the combined high and low cycle fatigue (CCF) loads during service. The structural integrity of the tenon/mortise structure is significantly affected by the local strain distribution, while the strain value under the CCF loads is difficult to acquire. In this study, a simulated specimen of tenon/mortise structure is designed, and the CCF test is carried out using a divided-path loading fixture to avoid interference between the high cycle fatigue (HCF) loads and the low cycle fatigue (LCF) loads. The high speed digital image correlation (DIC) method is adopted to acquire the real-time strain distribution during CCF test. According to the strain results, the critical position of the mortise and its strain variation are determined. The high cycle strain of the mortise is proportional to the vibration amplitude of the tenon. The experimental results can provide basis for strength and life assessment.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3474-3485"},"PeriodicalIF":3.1,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A direct analytical methodology for the assessment of ductile fracture in metals based on multiaxial tests 基于多轴测试的金属韧性断裂评估直接分析方法
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-30 DOI: 10.1111/ffe.14378
Gabriele Cortis, Marcello Piacenti, Filippo Nalli, Luca Cortese
{"title":"A direct analytical methodology for the assessment of ductile fracture in metals based on multiaxial tests","authors":"Gabriele Cortis,&nbsp;Marcello Piacenti,&nbsp;Filippo Nalli,&nbsp;Luca Cortese","doi":"10.1111/ffe.14378","DOIUrl":"https://doi.org/10.1111/ffe.14378","url":null,"abstract":"<p>The prediction accuracy of ductile damage models is subject to a sound calibration strategy, which normally involves the execution of complex multiaxial tests and requires dedicated facilities. In addition, finite element (FE) analysis is mandatory to retrieve the stress and strain states at the critical point, which cannot be directly measured from experiments. To overcome this complexity, a minimal set of simple multiaxial tests is selected, and an analytical-numerical approach is proposed to evaluate, without resorting to FE, both the stress evolution with plastic deformation and the fracture strain, under any different loading condition of each test. This is achieved from the sole knowledge of the material bilinear stress–strain relation and of the applied test displacement at fracture. The obtained results are compared with a traditional testing and calibration methodology, and the robustness of the approach is proved on a 17-4PH steel, an X65 steel, and a Ti6Al4V alloy.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3408-3424"},"PeriodicalIF":3.1,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An integrated approach for detecting and classifying pores and surface topology for fatigue assessment 316L manufactured by powder bed fusion of metals using a laser beam using μCT and machine learning algorithms 利用μCT和机器学习算法检测气孔和表面拓扑并对其进行分类的综合方法，用于对利用激光束进行金属粉末床融合制造的 316L 进行疲劳评估
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-27 DOI: 10.1111/ffe.14375
Johannes Diller, Ludwig Siebert, Michael Winkler, Dorina Siebert, Jakob Blankenhagen, David Wenzler, Christina Radlbeck, Martin Mensinger
{"title":"An integrated approach for detecting and classifying pores and surface topology for fatigue assessment 316L manufactured by powder bed fusion of metals using a laser beam using \u0000\u0000 μCT and machine learning algorithms","authors":"Johannes Diller,&nbsp;Ludwig Siebert,&nbsp;Michael Winkler,&nbsp;Dorina Siebert,&nbsp;Jakob Blankenhagen,&nbsp;David Wenzler,&nbsp;Christina Radlbeck,&nbsp;Martin Mensinger","doi":"10.1111/ffe.14375","DOIUrl":"https://doi.org/10.1111/ffe.14375","url":null,"abstract":"<p>This research aims to detect and analyze critical internal and surface defects in metal components manufactured by powder bed fusion of metals using a laser beam (PBF-LB/M). The aim is to assess their impact on the fatigue behavior. Therefore, a combination of methods, including image processing of micro-computed tomography (\u0000<span></span><math>\u0000 <mi>μ</mi></math>CT) scans, fatigue testing, and machine learning, was applied. A workflow was established to contribute to the nondestructive assessment of component quality and mechanical properties. Additionally, this study illustrates the application of machine learning to address a classification problem, specifically the categorization of pores into gas pores and lack of fusion pores. Although it was shown that internal defects exhibited a reduced impact on fatigue behavior compared with surface defects, it was noted that surface defects exert a higher influence on fatigue behavior. A machine learning algorithm was developed to predict the fatigue life using surface defect features as input parameters.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3392-3407"},"PeriodicalIF":3.1,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel models for fatigue life prediction under wideband random loads based on machine learning 基于机器学习的宽带随机载荷下疲劳寿命预测新模型
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-25 DOI: 10.1111/ffe.14371
Hong Sun, Yuanying Qiu, Jing Li, Jin Bai, Ming Peng
{"title":"Novel models for fatigue life prediction under wideband random loads based on machine learning","authors":"Hong Sun,&nbsp;Yuanying Qiu,&nbsp;Jing Li,&nbsp;Jin Bai,&nbsp;Ming Peng","doi":"10.1111/ffe.14371","DOIUrl":"https://doi.org/10.1111/ffe.14371","url":null,"abstract":"<p>Machine learning as a data-driven solution has been widely applied in the field of fatigue lifetime prediction. In this paper, three models for wideband fatigue life prediction are built based on three machine learning models, that is, support vector regression (SVR), Gaussian process regression (GPR), and artificial neural network (ANN). All the three prediction models use the parameter <i>b</i> of the well-known Tovo–Benasciutti (TB) model as their outputs to realize fatigue life prediction and their generalization abilities are enhanced by employing numerous power spectrum samples with different bandwidth parameters and a variety of material properties related to fatigue life. Sufficient Monte Carlo numerical simulations demonstrate that the newly developed machine learning models are superior to the traditional frequency-domain models in terms of life prediction accuracy and the ANN model has the best overall performance among the three developed machine learning models.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3342-3360"},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An experimental investigation on the failure behavior of sandstone with filled fissure under triaxial multilevel cyclic loading 充填裂隙砂岩在三轴多级循环荷载作用下的破坏行为实验研究
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-25 DOI: 10.1111/ffe.14366
Ke-Sheng Li, Yi-Quan Luan, Sheng-Qi Yang, Chuan-Xiao Liu
{"title":"An experimental investigation on the failure behavior of sandstone with filled fissure under triaxial multilevel cyclic loading","authors":"Ke-Sheng Li,&nbsp;Yi-Quan Luan,&nbsp;Sheng-Qi Yang,&nbsp;Chuan-Xiao Liu","doi":"10.1111/ffe.14366","DOIUrl":"https://doi.org/10.1111/ffe.14366","url":null,"abstract":"<p>Roadways are common in infrastructure of the underground engineering. The surrounding rocks of these roadways are often allowed to work with flaws and are subjected to cyclic loading with variable magnitude. However, the existing experimental data regarding their behavior are insufficient. This study investigated how confining pressure and the inclination of pre-existing fissures affect the mechanical properties and failure mechanisms of sandstones from the Lu-Xi coal roadway in Shandong Province. Utilizing triaxial cyclic experiments along with real-time acoustic emission (AE) monitoring, the findings were presented with respect to the evolution of strength as well as deformation behaviors, failure modes, and AE event frequency. Finally, the impact of the above two factors on damage mechanisms of preflawed sandstone materials were detailed discussed in terms of the fracture mechanics. This study highlights the importance the buried depth and flaws for the rock engineering and the sensitivity of sandstone's mechanical responses in changes in the lateral restriction and fissure angle.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3375-3391"},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fatigue strength improvement of aluminum alloy with surface defect by ball burnishing 通过球形灼烧提高有表面缺陷的铝合金的疲劳强度
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-25 DOI: 10.1111/ffe.14372
Kohei Wakamatsu, Koji Takahashi, Yuka Koyama, Masanori Taniguchi
{"title":"Fatigue strength improvement of aluminum alloy with surface defect by ball burnishing","authors":"Kohei Wakamatsu,&nbsp;Koji Takahashi,&nbsp;Yuka Koyama,&nbsp;Masanori Taniguchi","doi":"10.1111/ffe.14372","DOIUrl":"https://doi.org/10.1111/ffe.14372","url":null,"abstract":"<p>Ball burnishing (BB) is a surface finishing process that involves moving the tool while pressing it against the workpiece under rolling contact. We investigated the effects of BB on the fatigue strength of an aluminum alloy with a semicircular slit simulating an initial surface defect. After performing BB under a typical condition, compressive residual stress was induced to a depth of 0.4 mm, with a reduction in surface roughness by 81%. Consequently, the fatigue strength increased by 22%. BB prevented the fatigue strength reduction caused by the 0.1 mm deep slit. The result indicated that BB could render the below 0.1 mm deep surface defect harmless in terms of fatigue strength. The maximum depth of surface defect that can be rendered harmless is 0.18 mm according to fracture mechanics, which is in agreement with the experimental results.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3464-3473"},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ffe.14372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fracturing behavior and mechanism of flawed disc specimens under compressive loading using geometry-constraint-based nonordinary state-based peridynamics 利用基于几何约束的非平凡状态周动力学分析有缺陷圆盘试样在压缩载荷作用下的断裂行为和机理
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-25 DOI: 10.1111/ffe.14348
Yong Niu, Yundong Shou, Pengfei Guo, Yunjin Hu, Bolong Liu, Longfei Wang, Ranran Zhang
{"title":"Fracturing behavior and mechanism of flawed disc specimens under compressive loading using geometry-constraint-based nonordinary state-based peridynamics","authors":"Yong Niu,&nbsp;Yundong Shou,&nbsp;Pengfei Guo,&nbsp;Yunjin Hu,&nbsp;Bolong Liu,&nbsp;Longfei Wang,&nbsp;Ranran Zhang","doi":"10.1111/ffe.14348","DOIUrl":"https://doi.org/10.1111/ffe.14348","url":null,"abstract":"<p>A geometry-constraint-based nonordinary state-based peridynamic (GC-NOSBPD) model is developed to investigate the fracture characteristics of flawed brittle disc specimens under compressive loading as well as its fracturing mechanism. The bond-associated horizon (BAH) size is directly defined based on the kinematic constraint (KC). This proposed model can well mitigate the numerical oscillation. The failure criteria based on the bond-associated stress state are utilized to simulate the fracture of materials. Two stress effects can offer an insight into the fracturing mechanism of flawed specimens. The failure modes of flawed specimens are controlled by the tensile failure, and the crack growth trajectories acquired by the present numerical model are equivalent to those obtained by the experimental observations. The effects of size and crack inclination angles on the fracture toughness of brittle materials are assessed. The GC-NOSBPD model is competent for evaluating the fracture damage of flawed brittle materials and understanding its failure mechanism.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3324-3341"},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel approach combining the extended finite element method and the finite element over-deterministic method to predict mixed-mode fracture of rock by using unstructured coarse mesh 利用非结构粗网格预测岩石混合模式断裂的扩展有限元法与有限元超确定性法相结合的新方法
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-25 DOI: 10.1111/ffe.14369
Mohammad Reza Mehraban, Majid Reza Ayatollahi, Saeid Ghouli, Bahador Bahrami
{"title":"A novel approach combining the extended finite element method and the finite element over-deterministic method to predict mixed-mode fracture of rock by using unstructured coarse mesh","authors":"Mohammad Reza Mehraban,&nbsp;Majid Reza Ayatollahi,&nbsp;Saeid Ghouli,&nbsp;Bahador Bahrami","doi":"10.1111/ffe.14369","DOIUrl":"https://doi.org/10.1111/ffe.14369","url":null,"abstract":"<p>A rapid and appropriate evaluation of the crack asymptote coefficients is essential for estimating the fracture growth in rock materials with inherent cracks and discontinuities. In the present study, the extended finite element method (XFEM), implemented with free coarse mesh, is used in conjunction with the finite element over-deterministic (FEOD) method to determine the stress intensity factors (SIFs) and T-stress for mixed-mode I/II in-plane loading of cracked rock specimens. Then, the generalized strain energy density (GSED) criterion is employed to estimate both fracture load and crack initiation angle for two types of rock pre-cracked specimens. The predictions of the GSED criterion are then benchmarked against the experimental results, here obtained from three-point bend tests on Neyriz marble. It is shown that such an approach to evaluate the fracture load dramatically reduces the computational cost and effort, meanwhile guaranteeing high accuracy and robustness.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3361-3374"},"PeriodicalIF":3.1,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141967568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical investigation on the crack resistance curve of thermally treated quartz-diorite rock under mixed mode I + II loading 热处理石英闪长岩在 I+II 混合模式加载下的抗裂曲线数值研究
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-24 DOI: 10.1111/ffe.14354
You Wu, Tubing Yin, Yongjun Chen, Jiexin Ma, Wenxuan Guo, Zheng Yang
{"title":"Numerical investigation on the crack resistance curve of thermally treated quartz-diorite rock under mixed mode I + II loading","authors":"You Wu,&nbsp;Tubing Yin,&nbsp;Yongjun Chen,&nbsp;Jiexin Ma,&nbsp;Wenxuan Guo,&nbsp;Zheng Yang","doi":"10.1111/ffe.14354","DOIUrl":"https://doi.org/10.1111/ffe.14354","url":null,"abstract":"<p>To investigate the effects of thermal treatment and loading conditions on the crack initiation and propagation characteristics of quartz-diorite, mixed mode I + II fracture tests were conducted by using three-point bending (TPB) specimens. The numerical model, established on ABAQUS, couples the initial fracture toughness criterion and cohesive zone model to predict the crack initiation and propagation. The effects of thermal treatment and loading conditions on the crack propagation process, crack resistance curve, fracture path, and some fracture parameters at peak load have been analyzed and discussed. The results demonstrate that the thermal treatment has an obvious influence on the crack resistance curve of the specimen. The crack of the specimen will be dominated by the mode I fracture component with crack extension. The numerical results also show that the temperature and loading condition affect the crack length and fracture toughness at peak load.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3300-3323"},"PeriodicalIF":3.1,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fracture mechanism of Ti60 alloy at high temperature in very high cycle fatigue regime and fatigue life prediction 高温下 Ti60 合金在极高循环疲劳状态下的断裂机理及疲劳寿命预测
IF 3.1 2区 材料科学
Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-06-23 DOI: 10.1111/ffe.14359
Qikai Zhou, Zhiyong Huang, Hongjiang Qian, Jian Wang, Zeshuai Shen, Kai Pan, Yonghui Chen
{"title":"Fracture mechanism of Ti60 alloy at high temperature in very high cycle fatigue regime and fatigue life prediction","authors":"Qikai Zhou,&nbsp;Zhiyong Huang,&nbsp;Hongjiang Qian,&nbsp;Jian Wang,&nbsp;Zeshuai Shen,&nbsp;Kai Pan,&nbsp;Yonghui Chen","doi":"10.1111/ffe.14359","DOIUrl":"https://doi.org/10.1111/ffe.14359","url":null,"abstract":"<p>This study aimed to investigate the failure mechanism of Ti60 titanium alloy in the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) at 500°C. Ti60 specimens were characterized before and after the 500°C VHCF test, and the fracture surfaces were observed. The results show that there are three different fatigue failure mechanisms at 500°C: (i) equiaxed primary α phase (α<sub>p</sub>) cleavage, forming small unsmooth facets and rough fracture area (RA), and fusion of non-adjacent facets to grow into the main crack. (ii) α<sub>p</sub> grains gather into large grain with triple junction, and large grain slip to form large fusion facet. (iii) Oxide shedding and then cracks form. A dynamic recurrent neural network model is used to predict the fatigue life of Ti60 alloy, 91% of the overall predictions were within the scatter band of 3.0, and 100% were within the scatter band of 5.0.</p>","PeriodicalId":12298,"journal":{"name":"Fatigue & Fracture of Engineering Materials & Structures","volume":"47 9","pages":"3285-3299"},"PeriodicalIF":3.1,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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