Mechanics Research Communications最新文献_第4页

Fully analytical calculation of the strain gradient effective coefficients of periodic bilayered metamaterials with spring-type interlayer defects 含弹簧型层间缺陷的周期性双层超材料应变梯度有效系数的全解析计算

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-03-01 Epub Date: 2026-01-12 DOI: 10.1016/j.mechrescom.2026.104625

Leslie D. Pérez-Fernández , Julián Bravo-Castillero

{"title":"Fully analytical calculation of the strain gradient effective coefficients of periodic bilayered metamaterials with spring-type interlayer defects","authors":"Leslie D. Pérez-Fernández , Julián Bravo-Castillero","doi":"10.1016/j.mechrescom.2026.104625","DOIUrl":"10.1016/j.mechrescom.2026.104625","url":null,"abstract":"<div><div>Motivated by the usual occurrence of interlayer defects in materials and structures produced via additive manufacturing, a homogenization methodology is presented here, based on the scale invariance of the strain energy density and asymptotic homogenization, to obtain analytical formulas for the effective coefficients of periodic generalized Hookean composites with spring-type interfacial bonding and strain gradient global behavior in a two-dimensional setting. The first finding, differing from the perfect bonding case, is that the general fourth-rank strain gradient effective coefficients differ from the classical ones. Next, specialization to two-phase laminates with isotropic layers and sandwich-type periodicity cell allowed obtaining analytical formulas for all the strain gradient effective coefficients. Three more findings follow from these formulas: the imperfect bonding causes the appearance of new nonzero effective coefficients, which is in contrast with the perfect bonding case; proportionality relations among effective coefficients of the same rank are revealed, which are useful for simplifying and controlling their implementations and validating other computational or semi-analytical homogenization approaches conceived for more complex structures; and the higher-order effective coefficients vanish for the pseudo-homogeneous material with periodicity cell made of two imperfectly bonded layers of the same constitutive material, so having internal structure of a composite material is insufficient for producing strain gradient effective behavior. Numerical examples, carried out with experimental material and spring data, illustrate the theoretical findings. To the best of our knowledge, the results obtained her e are new and generalizable in a straightforward manner to the three-dimensional setting with any number of layers and anisotropy.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"152 ","pages":"Article 104625"},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of constituent materials on dispersion behaviors of SH waves in magnetoelectric sandwich plates 组成材料对磁电夹层板中SH波色散行为的影响

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.mechrescom.2026.104633

Na Liu , Guoquan Nie

{"title":"The effect of constituent materials on dispersion behaviors of SH waves in magnetoelectric sandwich plates","authors":"Na Liu , Guoquan Nie","doi":"10.1016/j.mechrescom.2026.104633","DOIUrl":"10.1016/j.mechrescom.2026.104633","url":null,"abstract":"<div><div>This study focuses on the dispersion characteristics of shear horizontal (SH) waves in a sandwich plate that incorporates a piezoelectric (PE) core layer and two piezomagnetic (PM) surface layers. The main objective is to reveal the effects of constituent PM materials and magnetic boundary conditions at the plate surface on dispersion behavior. Two different material combinations of PE and PM are considered. A more realistic assumption of magnetoelectric (ME) interface condition is applied and two different magnetic boundary conditions at the plate surface are discussed. Six types of phase velocity dispersion of SH waves resulted from the competitive relation of stiffness of PE and PM constituents are shown. The derived solutions are verified through finite element simulation, and a good agreement is demonstrated. The dispersion characteristics of SH waves in two typical ME sandwich plates are illustrated through several numerical examples. The effects of PM material property and magnetic boundary conditions on dispersion behaviors are revealed. The dependence of phase velocity of SH wave on volume fraction of components are shown. Some important characteristics of SH wave dispersion are drawn. The obtained results may be useful for the analysis and design of ME-based energy conversion devices.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"152 ","pages":"Article 104633"},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146078982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel discrete Kutznetsov–Ma breather solutions of the focusing Ablowitz–Ladik equation 聚焦Ablowitz-Ladik方程的新颖离散Kutznetsov-Ma呼吸解

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-03-01 Epub Date: 2025-12-31 DOI: 10.1016/j.mechrescom.2025.104610

E.C. Boadi, N.J. Ossi, B. Prinari

{"title":"Novel discrete Kutznetsov–Ma breather solutions of the focusing Ablowitz–Ladik equation","authors":"E.C. Boadi, N.J. Ossi, B. Prinari","doi":"10.1016/j.mechrescom.2025.104610","DOIUrl":"10.1016/j.mechrescom.2025.104610","url":null,"abstract":"<div><div>In this work, we present a novel solution of the Ablowitz–Ladik lattice on a nonzero background, which is a discrete analog of the Kuznetsov–Ma (KM) breather of the focusing nonlinear Schrödinger equation, i.e., a solution that is periodic in time and homoclinic in the (discrete) space variable. In earlier works, the Inverse Scattering Transform (IST) was developed to solve the initial-value problem for the focusing AL equation on a non-zero background, and several explicit solutions were constructed as a byproduct of the IST. In particular, discrete KM breathers were obtained for specific choices of the discrete eigenvalue. We show here that an additional KM-type breather solution exists, corresponding to a different choice for the discrete eigenvalue, which we refer to as KM2 breather, in analogy to the solutions recently obtained for the defocusing AL equation on a large background. Like the discrete KM solution already known in the literature (here referred to as KM1), the novel KM2 breather is also regular on the lattice for all times. On the other hand, unlike KM1, the KM2 breather is a purely discrete solution; namely, it is only defined for values of the spatial variable <span><math><mrow><mi>n</mi><mo>∈</mo><mi>Z</mi></mrow></math></span>. Furthermore, we derive Darboux transformations, which allow us to obtain multi-KM breather solutions of both types, and we present some illustrative examples.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"152 ","pages":"Article 104610"},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ballistic impact behavior of laminated jute fiber structures against two projectile nose profiles 层压黄麻纤维结构对两种弹头剖面的弹道冲击性能

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-03-01 Epub Date: 2026-01-05 DOI: 10.1016/j.mechrescom.2026.104612

Deepu Kumar Singh, Gaurav Tiwari

{"title":"Ballistic impact behavior of laminated jute fiber structures against two projectile nose profiles","authors":"Deepu Kumar Singh, Gaurav Tiwari","doi":"10.1016/j.mechrescom.2026.104612","DOIUrl":"10.1016/j.mechrescom.2026.104612","url":null,"abstract":"<div><div>This study investigates the ballistic performance of jute-epoxy laminate sheets subjected to normal impact by two nose shaped projectiles (Blunt & Ogival) through both experimental testing and numerical simulation. The both projectiles consistently had an identical mass of 17 g and a diameter of 10 mm across all impact cases. The target specimens had an initial size of 150 × 150 mm<sup>2</sup>, and formed in 3 mm and 5 mm thicknesses across multiple stacking configurations. The ballistic experiments were tested over an impact velocity interval of 18–76 m/s using a pneumatic gas gun on the jute-epoxy laminate sheets. A finite element explicit software package, ANSYS/LS-DYNA, was employed to create a 3D model of the target sheet and projectiles. The perforation behavior of the jute-epoxy laminate sheets and the projectile was simulated using the Chang-Chang damage model and a rigid body model, respectively. The performance of the laminate sheets was assessed based on residual velocity, perforation process, damage pattern, ballistic limit, and back face signature allowing for a comprehensive comparison of the effects of two projectile nose shapes. The results confirmed that the damage model successfully forecasted the experimental results. Furthermore, scanning electron microscopy (SEM) was employed to examine the failure mechanisms, which predominantly revealed two primary modes: fiber-breakage and matrix-cracking in the jute-epoxy laminate sheets. In addition, a comparative analysis was conducted against other high-strength fibers, incorporating both economic evaluation and performance-to-cost ratio assessment. Moreover, the jute–epoxy laminate exhibited superior ballistic performance against blunt projectiles compared to ogival.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"152 ","pages":"Article 104612"},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear vibration analysis of fractional-order viscoelastic pet membrane under non-uniformly distributed temperature field 非均匀温度场下分数阶粘弹性pet膜的非线性振动分析

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-03-01 Epub Date: 2026-01-09 DOI: 10.1016/j.mechrescom.2026.104621

Jimei Wu , Rui Li , Mingyue Shao , Chaoyue Lin , Qiumin Wu

{"title":"Nonlinear vibration analysis of fractional-order viscoelastic pet membrane under non-uniformly distributed temperature field","authors":"Jimei Wu , Rui Li , Mingyue Shao , Chaoyue Lin , Qiumin Wu","doi":"10.1016/j.mechrescom.2026.104621","DOIUrl":"10.1016/j.mechrescom.2026.104621","url":null,"abstract":"<div><div>In actual printing production, the temperature distribution within the hot-air drying environment of the oven is non-uniform. Therefore, this paper investigates the nonlinear vibration of a fractional-order viscoelastic PET film under a non-uniform temperature field. The temperature distribution within the hot-air drying environment of the oven in printing equipment is assumed to be non-uniform. The thermal viscoelasticity of the fractional-order PET film is described based on thermal strain and the fractional-order viscoelastic Kelvin-Voigt constitutive model. Based on von Kármán theory and D'Alembert's principle, establish a fractional-order nonlinear vibrational differential equation for the motion of PET film under non-uniform temperature fields during the roll-to-roll printing process.The nonlinear vibration equation is discretized using the Galerkin method, combined with finite difference methods and discrete Caputo fractional derivatives, to obtain the nonlinear vibration response of the fractional-order viscoelastic PET film under non-uniform temperature effects. Programming in MATLAB generates bifurcation diagrams, phase trajectories, time history plots, phase diagrams, and Poincaré sections. The study analyzes the influence of parameters such as fractional order, non-uniform hot air temperature, and external hot air excitation on the nonlinear vibration of the film. This study establishes a film vibration model coupling non-uniform temperature fields with fractional viscoelasticity, quantifies the control mechanisms of multiple parameters on nonlinear vibration, and provides a theoretical basis for vibration control and parameter optimization of PET films during printing processes.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"152 ","pages":"Article 104621"},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reciprocal theorem for calculating the flow rate of oscillatory channel flows 计算振荡通道流量的互易定理

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-02-01 Epub Date: 2025-12-13 DOI: 10.1016/j.mechrescom.2025.104589

Shrihari D. Pande , Evgeniy Boyko , Ivan C. Christov

引用次数: 0

Experimental validation and fracture mechanics analysis of an innovative UHPC-based material for structural strengthening 新型uhpc基结构强化材料的实验验证及断裂力学分析

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-02-01 Epub Date: 2025-12-11 DOI: 10.1016/j.mechrescom.2025.104603

Zihan Jiang , Zhiwen Zhu , Giuseppe Lacidogna , Jueliang Chen , Bo Li

{"title":"Experimental validation and fracture mechanics analysis of an innovative UHPC-based material for structural strengthening","authors":"Zihan Jiang , Zhiwen Zhu , Giuseppe Lacidogna , Jueliang Chen , Bo Li","doi":"10.1016/j.mechrescom.2025.104603","DOIUrl":"10.1016/j.mechrescom.2025.104603","url":null,"abstract":"<div><div>This study presents an experimental and fracture mechanics analysis of an innovative composite material engineered for structural strengthening, which is based on ultra-high performance concrete (UHPC) enhanced with a high dosage of steel fibres. The effectiveness of this material is evaluated on reinforced concrete (RC) beams that had been subjected to 24 years of sustained loading, representing a realistic, pre-damaged substrate. Combining four-point bending tests with acoustic emission (AE) monitoring, the research analyzes crack propagation, failure modes, and the interplay between mechanical response and AE parameters across micro-, meso‑, and macro-scales from a fracture mechanics perspective. Key findings include a 18% increase in ductility coefficient for beams with deeper UHPC layers, and AE-based precursors such as the <em>b</em>-value evolution and natural time variance reliably identified macro-fracture initiation. The RA-AF analysis quantified a meso‑scale transition from shear to tensile cracking with increased UHPC depth. The UHPC-RC vertical interface acts as a critical meso‑scale fracture process zone governing failure modes, with deeper UHPC applications enhancing ductility by promoting a tensile-dominated cracking mechanism. These results validate the superior performance of the proposed UHPC-based material in rehabilitating severely aged infrastructure and demonstrate that AE techniques, interpreted through fracture mechanics principles, offer unique insights into real-time multiscale damage progression beyond conventional measurements.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"151 ","pages":"Article 104603"},"PeriodicalIF":2.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145791985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modified meshless simulation of violent sloshing in tuned liquid dampers with limited freeboard for structural vibration control 用于结构振动控制的有限干舷调谐液体阻尼器剧烈晃动的改进无网格模拟

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-02-01 Epub Date: 2025-12-27 DOI: 10.1016/j.mechrescom.2025.104609

Debadatta Jena , Kishore Chandra Biswal , Sidhartha Sankar Roy

{"title":"Modified meshless simulation of violent sloshing in tuned liquid dampers with limited freeboard for structural vibration control","authors":"Debadatta Jena , Kishore Chandra Biswal , Sidhartha Sankar Roy","doi":"10.1016/j.mechrescom.2025.104609","DOIUrl":"10.1016/j.mechrescom.2025.104609","url":null,"abstract":"<div><div>Under intense excitation, violent sloshing in tuned liquid dampers (TLDs) with limited freeboard offers effective damping through ceiling impacts and wave breaking. Currently, there is a lack of comprehensive studies addressing violent sloshing with ceiling impacts and wave breaking in TLDs. In this paper, a coupled structure-TLD interaction model is developed, integrating the modified meshless particle method to characterize violent liquid sloshing with wave breaking and a spring-mass mechanical model to represent the dynamic behavior of the supporting structure. The present model incorporates modifications to the original Moving Particle Semi-implicit (MPS) method which includes enhanced source terms in the pressure Poisson equation, an improved gradient approximation scheme, a unified free-surface and boundary treatment, implementation of Neumann boundary conditions, and optimized particle spacing to prevent collisions. The model is validated against existing results and applied to a multi-degree-of-freedom structure equipped with a TLD. A parametric study is conducted for mass ratios ranging from 0.5 % to 3 % in increments of 0.5 %, focusing on wave breaking and wave impact phenomena, and evaluating the effectiveness of the TLD in controlling structural vibrations. The model successfully captures violent sloshing behavior and demonstrates the vibration reduction efficiency of TLDs with limited freeboard. The effectiveness of the TLD in reducing structural response generally improves with increasing mass ratio. However, the present study demonstrates that, even at relatively lower mass ratios, the occurrence of violent sloshing accompanied by wave breaking and wave impact significantly enhances energy dissipation, leading to a pronounced reduction in structural vibration.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"151 ","pages":"Article 104609"},"PeriodicalIF":2.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 analytical formulation for obtaining solitary wave solutions with a focus on gravity-driven liquid films 一个新的解析公式，以获得孤立波解的重点是重力驱动的液体膜

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-02-01 Epub Date: 2025-12-26 DOI: 10.1016/j.mechrescom.2025.104608

Markus Scholle , Meriem Al Ahmadi Hammou , Philip H. Gaskell

{"title":"A novel analytical formulation for obtaining solitary wave solutions with a focus on gravity-driven liquid films","authors":"Markus Scholle , Meriem Al Ahmadi Hammou , Philip H. Gaskell","doi":"10.1016/j.mechrescom.2025.104608","DOIUrl":"10.1016/j.mechrescom.2025.104608","url":null,"abstract":"<div><div>A potential-based, first-integral formulation of the Navier–Stokes equations is used as the platform for modelling solitary waves in the context of gravity-driven film flow on planar surfaces, resulting in a nonlinear partial differential equation (PDE), in complex form. Its subsequent modal decomposition, leading to an infinite set of ordinary differential equations (ODEs), followed by a bimodal approximation and elimination of unknowns, results in just two coupled ODEs to be solved. The latter is achieved both analytically and numerically using a Ritz–Galerkin methodology. Illustrative solitary wave results are provided, which exhibit the expected internal recirculating flow pattern and the corresponding pronounced hump-shaped, free-surface displacement typically observed in related experiments and consistent with other analytical/numerical results in the literature. Despite the numerous approximations involved in arriving at such a minimalist model, the same is capable of providing valid predictions apropos solitary waves; namely, regarding the existence of multiple solutions for a given film thickness and effective inclination angle, with different size and propagation speed, as demonstrated by the parameter study undertaken. Another remarkable feature is the paired occurrence of solitary wave and anti-wave solutions.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"151 ","pages":"Article 104608"},"PeriodicalIF":2.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical behaviour of third-generation steel subjected to strain path changes 应变路径变化下第三代钢的力学行为

IF 2.3 4区工程技术

Mechanics Research Communications Pub Date : 2026-02-01 Epub Date: 2025-12-05 DOI: 10.1016/j.mechrescom.2025.104587

Wei Wen , Marilena C. Vincze , Rafael O. Santos , Antonio M.B. Pereira , Gabriela Vincze

{"title":"Mechanical behaviour of third-generation steel subjected to strain path changes","authors":"Wei Wen , Marilena C. Vincze , Rafael O. Santos , Antonio M.B. Pereira , Gabriela Vincze","doi":"10.1016/j.mechrescom.2025.104587","DOIUrl":"10.1016/j.mechrescom.2025.104587","url":null,"abstract":"<div><div>The development of new steel grades is essential to meet the evolving demands of vehicle manufacturing and to understand their mechanical behaviour under complex loading paths is critical to ensuring reliable and effective forming operations. This study investigates the response of a third-generation advanced high-strength steel subjected to reverse shear loading and two-step uniaxial tension tests, with reloading at 0°, 45°, 55° and 90° relative to the initial prestrain direction. Under reverse shear loading, the material exhibits a pronounced transient Bauschinger effect that stabilizes after approximately 20 % prestrain. No hardening stagnation is observed, and permanent softening occurs at higher prestrain levels. In the two-step tension tests, a transient Bauschinger effect is observed at 90° from the rolling direction, with no latent hardening present for cross-loading. A dislocation-based crystal plasticity model is employed to simulate the material response under non-proportional loading, and its predictions are compared with experimental results to assess the model’s accuracy in capturing strain-path sensitivity in third-generation steel.</div></div>","PeriodicalId":49846,"journal":{"name":"Mechanics Research Communications","volume":"151 ","pages":"Article 104587"},"PeriodicalIF":2.3,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0