Advances in Engineering Software最新文献_第5页

GeoWarp: An automatically differentiable and GPU-accelerated implicit MPM framework for geomechanics based on NVIDIA Warp GeoWarp：基于NVIDIA Warp的地质力学的自动可微分和gpu加速的隐式MPM框架

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-23 DOI: 10.1016/j.advengsoft.2025.104072

Yidong Zhao , Xuan Li , Chenfanfu Jiang , Jinhyun Choo

The material point method (MPM), a hybrid Lagrangian–Eulerian particle method, is increasingly used to simulate large-deformation and history-dependent behavior of geomaterials. While explicit time integration dominates current MPM implementations due to its algorithmic simplicity, such schemes are unsuitable for quasi-static and long-term processes typical in geomechanics. Implicit MPM formulations are free of these limitations but remain less adopted, largely due to the difficulty of computing the Jacobian matrix required for Newton-type solvers, especially when consistent tangent operators should be derived for complex constitutive models. In this paper, we introduce GeoWarp—an implicit MPM framework for geomechanics built on NVIDIA Warp—that exploits GPU parallelism and reverse-mode automatic differentiation to compute Jacobians without manual derivation. To enhance efficiency, we develop a sparse Jacobian construction algorithm that leverages the localized particle–grid interactions intrinsic to MPM. The framework is verified through forward and inverse examples in large-deformation elastoplasticity and coupled poromechanics. Results demonstrate that GeoWarp provides a robust, scalable, and extensible platform for differentiable implicit MPM simulation in computational geomechanics.

材料点法（MPM）是一种拉格朗日-欧拉混合粒子法，越来越多地用于模拟岩土材料的大变形和历史依赖行为。虽然显式时间积分由于其算法简单而主导了当前的MPM实现，但这种方案不适合地质力学中典型的准静态和长期过程。隐式MPM公式没有这些限制，但仍然很少被采用，这主要是由于计算牛顿型求解器所需的雅可比矩阵的困难，特别是当需要为复杂的本构模型导出一致的切线算子时。在本文中，我们介绍了geowarp——一个基于NVIDIA warp的隐式地质力学MPM框架，它利用GPU并行性和反向模式自动微分来计算雅可比矩阵而无需手动推导。为了提高效率，我们开发了一种稀疏雅可比构造算法，该算法利用了MPM固有的局部粒子网格相互作用。通过大变形弹塑性和耦合孔隙力学的正反算例对该框架进行了验证。结果表明，GeoWarp为计算地质力学中的可微隐式MPM模拟提供了一个鲁棒、可扩展和可扩展的平台。

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引用次数: 0

An efficient multiscale coupling method for simulations of reactor-scale chemical vapor deposition with microstructural features 具有微结构特征的反应器级化学气相沉积多尺度耦合模拟方法

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-10-30 DOI: 10.1016/j.advengsoft.2025.104051

Taegeun Kim , Hyoungsoo Ko , Jaewon Jang , Sejin Kim , Sunyoung Park , Jae Myung Choe , Young-gu Kim , Dae Sin Kim , Sangseung Lee , Donghyun You

An efficient multiscale coupling method is proposed for simulations of reactor-scale chemical vapor deposition (CVD) with microstructural features. Reactor-scale and microstructure-resolved feature-scale models are coupled through an effective reaction rate formalism, enabling high-resolution deposition simulations while significantly reducing computational cost. A parameterized microstructural model is introduced, in which the relationship between the effective reaction rate and local species consumption rates in the reactor-scale model is directly mapped using precomputed Monte Carlo simulation data. This eliminates the need for iterative calculations or direct numerical simulations of the surface reaction across all the discretized grid points on the wafer, ensuring predictive accuracy while enhancing computational efficiency. Furthermore, an adaptive time-stepping method is developed, dynamically adjusting the time-step size for the feature-scale model based on variations in the effective reaction rate. Through this approach, simulation time is reduced by more than one-third compared to conventional fixed time-step methods, while preserving the accuracy of the effective reaction rate model. The proposed method enables practical and scalable multiscale CVD simulations applicable to industrial reactor design and process optimization, establishing a computationally efficient strategy for integrating reactor-scale and microstructure-resolved feature-scale models.

提出了一种高效的多尺度耦合方法来模拟具有微观结构特征的反应器尺度化学气相沉积过程。反应器尺度和微结构分辨率特征尺度模型通过有效的反应速率形式相结合，实现高分辨率沉积模拟，同时显著降低计算成本。引入参数化微结构模型，利用预先计算的蒙特卡罗模拟数据直接映射反应器尺度模型中有效反应速率与局部物质消耗率之间的关系。这消除了对晶圆上所有离散网格点的表面反应进行迭代计算或直接数值模拟的需要，确保了预测的准确性，同时提高了计算效率。在此基础上，提出了一种基于有效反应速率变化动态调整特征尺度模型时间步长的自适应时间步长方法。通过该方法，与传统的固定时间步长方法相比，模拟时间减少了三分之一以上，同时保持了有效反应速率模型的准确性。该方法实现了适用于工业反应器设计和工艺优化的实用和可扩展的多尺度CVD模拟，为集成反应器尺度和微观结构分辨率特征尺度模型建立了一种计算效率高的策略。

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引用次数: 0

Stress intensity factor evaluation for non-planar cracks using virtual grid stress recovery (VGSR) and interaction integral methods 基于虚拟网格应力恢复和相互作用积分法的非平面裂纹应力强度因子评价

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-10-23 DOI: 10.1016/j.advengsoft.2025.104042

Nastaran Movahedi, Jongyeop Kim, Kyoungsoo Park

This study proposes a straightforward method for computation of stress intensity factors (SIFs) for three-dimensional cracks featuring curved crack fronts and curved crack surfaces, without concerning the mesh topology around a crack tip. The key idea is to utilize a virtual grid-based stress recovery (VGSR) method on arbitrary nonplanar crack geometries along with the interaction energy integral to extract SIFs correspond to different modes. Since the VGSR technique reduces errors related to numerical differentiation and integral domain, it provides accurate computation of SIFs even with arbitrary unstructured meshes. Validation against benchmark problems shows excellent agreement with analytical solutions, highlighting the efficacy of this conjugated approach for precise SIF evaluation. Computational results demonstrate the convergence to analytical solutions while effectively reducing the pointwise oscillations of SIFs under mesh refinement. Additionally, parametric studies are comprehensively performed concerning the characteristics associated with virtual grid domain size, virtual grid element size, finite element sizes, and number of numerical integration points.

本研究提出了一种直接计算具有弯曲裂纹前沿和弯曲裂纹表面的三维裂纹的应力强度因子（SIFs）的方法，而无需考虑裂纹尖端周围的网格拓扑结构。其核心思想是利用基于虚拟网格的应力恢复（VGSR）方法和相互作用能量积分对任意非平面裂纹几何形状提取不同模态对应的SIFs。由于VGSR技术减少了与数值微分和积分域相关的误差，因此即使在任意非结构化网格下也能精确计算SIFs。针对基准问题的验证显示与分析解决方案非常一致，突出了这种共轭方法用于精确SIF评估的有效性。计算结果表明，该方法收敛于解析解，同时有效地降低了网格细化后SIFs的点向振荡。此外，还对虚拟网格域尺寸、虚拟网格单元尺寸、有限元尺寸、数值积分点数量等相关特征进行了参数化研究。

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引用次数: 0

Closed-form neural network solutions for biaxial compressive strength prediction of cracked steel plates 裂纹钢板双轴抗压强度预测的封闭神经网络解

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-20 DOI: 10.1016/j.advengsoft.2025.104069

Dongyang Li , Zhen Chen , Chao Sun

As the fundamental component of ship structures, the hull plate made of steel may be subjected to multi-directional loading and potential cracking damage. The joint action of these factors is extremely harmful to the ultimate strength. In the current paper, a novel strategy is proposed to decouple the implicit interaction relationship of ultimate stresses of hull plates with a through-thickness crack under biaxial compression. The evolution mechanisms of load-carrying capacity influenced by crack faces contact are clarified using a shell-solid mixed finite element model. Then, a simplified approach to establish the FE model of cracked plates is employed in the benchmark parametric analysis, which is validated via experimental results. Subsequently, extensive collapse analysis is conducted to investigate the complicated characteristics of residual ultimate strength considering material and geometric nonlinearities. The coupling effect of plate aspect ratio and slenderness ratio, crack length, angle and location together with in-plane compressive loads is dealt with synthetically. Based on 3360 (1680 × 2) sample points derived from numerical calculation, a set of empirical formulae are reported to predict the reduction factor of axial ultimate strength. Combining these formulae with a projection approach for angular cracks, a generalized closed-form approach is proposed to accurately model the interaction relationships of residual ultimate strength. The generalization of these formulae is verified through independent databases with more than 480 sample points.

钢壳板作为船舶结构的基本部件，可能会受到多向载荷和潜在的开裂损伤。这些因素的共同作用对极限强度是极其有害的。本文提出了一种新的策略来解耦双轴压缩下船体板极限应力与贯通裂纹的隐式相互作用关系。采用壳固混合有限元模型，阐明了裂纹面接触对承载能力演化的影响机制。然后，采用简化的方法建立裂纹板有限元模型，进行基准参数分析，并通过实验结果进行验证。随后，进行了广泛的破坏分析，研究了考虑材料非线性和几何非线性的残余极限强度的复杂特性。综合考虑了板长径比与长细比、裂纹长度、角度和位置与面内压缩载荷的耦合效应。基于数值计算得到的3360 （1680 × 2）个样点，提出了一套预测轴向极限强度折减系数的经验公式。将这些公式与角裂纹的投影方法相结合，提出了一种广义的封闭方法来精确地模拟残余极限强度的相互作用关系。通过拥有480多个样本点的独立数据库验证了这些公式的泛化性。

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引用次数: 0

Data-driven prediction for flexural strength of FRP bars reinforced concrete beams based on optimized machine learning and SHAP method 基于优化机器学习和SHAP方法的FRP筋混凝土梁抗弯强度数据驱动预测

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.advengsoft.2025.104067

Tianyong Jiang , Jun Tang , Chunjun Hu , Ke Huang , Xiang Tian , Lei Wang

Fiber-reinforced polymer (FRP) can substitute for steel bars to improve the durability problem of reinforced concrete (RC) beams attributed to corrosion. But A high-precision and interpretable prediction method for the flexural strength of FRP-RC beams has not yet been constructed. This study proposed a genetic algorithm optimized artificial neural network (GA-ANN) model to predict the flexural strength of FRP-RC beams. A database of 166 samples was established to train and validate the model. The input parameters include the FRP reinforcement area, FRP ultimate tensile strength, FRP type, elastic modulus of FRP, concrete compressive strength, beam width, and beam depth. The prediction accuracy and practicability of the GA-ANN model were assessed by comparison with other machine learning (ML) models and design guidelines. A parametric sensitivity analysis was performed based on the proposed model. Finally, the SHapley Additive exPlanation (SHAP) was introduced to investigate the intrinsic mechanisms and the parameter contribution of the ML prediction. The results revealed the GA-ANN model achieves superior prediction performance, with a coefficient of determination (R²) on the validation set of 0.992, which is 1.74% to 6.43% higher than that of other models. Moreover, the trends of flexural strength with the input parameters can be well captured, which is highly consistent with the design guidelines. Interpretability analysis shows that the beam depth and the FRP reinforcement area are the dominant factors affecting flexural strength. This study provides reliable support for the accurate prediction of flexural strength and effective reference for engineering applications.

纤维增强聚合物（FRP）可以代替钢筋来改善钢筋混凝土梁的腐蚀耐久性问题。但目前还没有一种高精度、可解释的FRP-RC梁抗弯强度预测方法。提出了一种遗传算法优化的人工神经网络（GA-ANN）模型来预测FRP-RC梁的抗弯强度。建立了包含166个样本的数据库，对模型进行训练和验证。输入参数包括FRP加固面积、FRP极限抗拉强度、FRP类型、FRP弹性模量、混凝土抗压强度、梁宽、梁深。通过与其他机器学习（ML）模型和设计指南的比较，评估了GA-ANN模型的预测精度和实用性。在此基础上进行了参数敏感性分析。最后，引入SHapley加性解释（SHAP）来研究机器学习预测的内在机制和参数贡献。结果表明，GA-ANN模型具有较好的预测性能，在验证集上的决定系数（R2）为0.992，比其他模型高1.74% ~ 6.43%。此外，可以很好地捕捉到抗折强度随输入参数的变化趋势，这与设计准则高度一致。可解释性分析表明，梁深和FRP加固面积是影响抗弯强度的主要因素。该研究为结构抗弯强度的准确预测提供了可靠的支撑，为工程应用提供了有效的参考。

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引用次数: 0

Topology optimization of fiber-reinforced composite structures considering fiber orientation and cross-sectional size 考虑纤维取向和截面尺寸的纤维增强复合材料结构拓扑优化

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-25 DOI: 10.1016/j.advengsoft.2025.104073

Pengfei Sun , Jiantao Bai , Ran Zhang , Fei Cheng , Xiaojiang Zhang , Wenjie Zuo

Fiber-reinforced composite structures (FRCs) are widely used in engineering. The design of the structural topology, together with fiber paths and cross-sectional size is important for enhancing their structural performance. Therefore, a topology optimization method is proposed that considers fiber orientation and cross-sectional size for FRCs. A bar-embedded model is employed to model the FRCs. The Solid Isotropic Material with Penalization method is applied to optimize the structural topology, whereas the Normal Distribution Fiber Optimization method is used to optimize the fiber orientation and cross-sectional size. The objective is to minimize compliance subject to prescribed matrix and fiber volume fractions. Numerical examples are provided to validate the effectiveness of the proposed method.

纤维增强复合材料结构在工程中有着广泛的应用。结构拓扑的设计、光纤路径和截面尺寸是提高其结构性能的重要因素。因此，提出了一种考虑纤维取向和纤维截面尺寸的纤维纤维结构拓扑优化方法。采用嵌条模型对FRCs进行建模。采用固体各向同性材料惩罚法对结构拓扑进行优化，采用正态分布纤维优化法对纤维取向和截面尺寸进行优化。目的是尽量减少依从性受到规定的基质和纤维体积分数。数值算例验证了该方法的有效性。

引用次数: 0

Free vibration analysis of functionally graded porous corrugated plates with porosity distributions in the thickness and width directions 具有厚度和宽度方向孔隙率分布的功能梯度多孔波纹板的自由振动分析

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-14 DOI: 10.1016/j.advengsoft.2025.104066

Yaqiang Xue , Chunyu Zhang , Kangkang Shi , Yuan Gao , Zhenyang Gao

This study presents vibration modeling and analysis of functionally graded porous (FGP) corrugated plates using isogeometric analysis (IGA) and the first-order shear deformation theory (FSDT). FGP sinusoidally corrugated plates (SCPs) and arc corrugated plates (ACPs) with porosity distributions in the thickness and width directions are studied for the first time. The corrugated plates are modeled by using the non-uniform rational B-splines (NURBS) and multi-patch technique. After building the discretized model for every patch, global mass and stiffness matrices are derived by employing a coordinate transformation between the global and local coordinate systems. The convergence and accuracy of the presented method are validated through comparison with other available data. Then, free vibration behaviors of FGP SCPs and ACPs are analyzed, with a focus on the effects of boundary conditions, porosity distributions, and geometric parameters, such as half-period, half-amplitude, and plate thickness. The results provide benchmark data for future research and offer valuable insights into the advanced structural design and optimization for FGP corrugated plates.

本文采用等几何分析（IGA）和一阶剪切变形理论（FSDT）对功能梯度多孔（FGP）波纹板进行了振动建模和分析。首次研究了FGP正弦波板和圆弧波板在厚度和宽度方向上的孔隙度分布。采用非均匀有理b样条（NURBS）和多贴片技术对波纹板进行建模。在建立离散化模型后，利用全局坐标系与局部坐标系之间的坐标变换，导出全局质量矩阵和刚度矩阵。通过与其他可用数据的比较，验证了该方法的收敛性和准确性。在此基础上，分析了FGP SCPs和ACPs的自由振动行为，重点研究了边界条件、孔隙率分布、几何参数（如半周期、半振幅和板厚）对自由振动行为的影响。研究结果为未来的研究提供了基准数据，并为FGP波纹板的先进结构设计和优化提供了有价值的见解。

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引用次数: 0

Feature-preserving mesh generation and simulation for implicitly represented lattice structures 隐式表示晶格结构的特征保留网格生成与仿真

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2026-01-01 Epub Date: 2025-11-12 DOI: 10.1016/j.advengsoft.2025.104065

Zhen Liu, Liang Xia

Lattice structures have attracted extensive research interest due to their hierarchical architecture and multi-functional properties, enabling unprecedented design flexibility across diverse engineering fields. In general, lattice structure modeling employs two primary methods: boundary representation (B-rep) and implicit representation. The latter is distinguished by its ability to generate lattice structures with more intricate geometries and more diverse functions compared to the former. However, the generated surface mesh the implicitly represented lattice structures is accomplished by feature distortion, non-manifold meshes, and self-intersecting meshes. This not only results in the failure of the generation of body-fitted meshes for finite element analysis (FEA) but also render the performance of additive manufacturing (AM) using the STL model built from the surface mesh impossible. To address these challenges, this work proposes a novel framework of feature-preserving meshing strategies by extending the dual contouring algorithm. The enhanced algorithm outperforms the dual contouring algorithm by ensuring generated surface meshes strictly adhere to topological validity requirements (manifold, closed, oriented), completely eliminating self-intersections, and faithfully preserving sharp geometric features. Subsequently, the remeshing of the surface mesh is performed to optimize the shape and reduce the count of triangles with preserved sharp geometric features, followed by the generation of body-fitted tetrahedral meshes, as depicted in Fig. 1. Finally, the proposed closed-loop mesh generation workflow generates a finite element (FE) model in the standard .inp file format, ensuring compatibility with commercial computational mechanics software (e.g., ABAQUS, ANSYS). Numerical examples show that the proposed meshing workflow is feasible and effective.

晶格结构由于其分层结构和多功能特性而引起了广泛的研究兴趣，在不同的工程领域实现了前所未有的设计灵活性。一般来说，网格结构建模主要采用两种方法：边界表示（B-rep）和隐式表示。与前者相比，后者的特点是能够生成具有更复杂几何形状和更多样化功能的晶格结构。然而，隐式表示的点阵结构生成的表面网格是通过特征畸变、非流形网格和自相交网格来完成的。这不仅会导致生成用于有限元分析（FEA）的体贴合网格的失败，而且还会使使用从表面网格构建的STL模型的增材制造（AM）的性能变得不可能。为了解决这些挑战，本工作通过扩展双轮廓算法提出了一种新的特征保持网格策略框架。增强算法通过确保生成的曲面网格严格遵守拓扑有效性要求（流形、封闭、定向），完全消除自交，忠实地保留尖锐的几何特征，优于双轮廓算法。随后，对表面网格进行重新网格划分，优化形状，减少保留尖锐几何特征的三角形数量，然后生成贴体四面体网格，如图1所示。最后，提出的闭环网格生成工作流生成标准中的有限元模型。inp文件格式，确保与商业计算力学软件（如ABAQUS， ANSYS）的兼容性。数值算例表明，所提出的网格划分流程是可行和有效的。

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引用次数: 0

Frequency domain cell-vertex finite volume method for muffler transmission loss prediction 消声器传输损耗预测的频域单元顶点有限体积法

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2025-12-01 Epub Date: 2025-09-17 DOI: 10.1016/j.advengsoft.2025.104031

Lingkuan Xuan , Gonghao Zhao , Jingfeng Gong , Shengli Su , Yin Yan

This study presents an efficient frequency domain cell vertex finite volume method (FD-CVFVM) to predict muffler transmission loss (TL). The heterogeneous Helmholtz equation is discretized based on FD-CVFVM. A control volume is constructed around each vertex. Acoustic pressure is stored at each mesh vertex. Shape functions are used to describe the acoustic pressure distribution. A calculation program implementing the FD-CVFVM is developed using the C++ language. The TL of a simple expansion chamber muffler, a resistive muffler, and a perforated resistive muffler are computed using different mesh models. The results are compared and analyzed against those obtained from commercial FEM software. The numerical results demonstrate that the FD-CVFVM predictions are in good agreement with those of the FEM results. It is found that the computational efficiency of the FD-CVFVM is significantly superior to that of commercial FEM software. The maximum computation time is reduced by approximately 78.2 %. An analysis of the sparsity pattern of the coefficient matrix is accomplished to reveal the reason of the superior computational speed over the commercial FEM software. This method is anticipated to offer a novel numerical approach for predicting muffler TL.

提出了一种有效的频域单元顶点有限体积法（FD-CVFVM）来预测消声器的传输损耗。基于FD-CVFVM对非均匀亥姆霍兹方程进行离散化。在每个顶点周围构造一个控制体。声压存储在每个网格顶点。用形状函数来描述声压分布。用c++语言编写了实现FD-CVFVM的计算程序。采用不同的网格模型计算了简单膨胀室消声器、电阻式消声器和穿孔式电阻式消声器的传动比。并与商业有限元软件的计算结果进行了对比分析。数值计算结果表明，FD-CVFVM预测结果与有限元计算结果吻合较好。结果表明，FD-CVFVM的计算效率明显优于商用有限元软件。最大计算时间减少了约78.2%。分析了系数矩阵的稀疏性规律，揭示了计算速度优于商用有限元软件的原因。该方法有望为消声器TL预测提供一种新的数值方法。

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引用次数: 0

SUN-DIC: A Python-based open-source software tool for Digital Image Correlation SUN-DIC：基于python的开源数字图像相关软件工具

IF 5.7 2区工程技术 Q2 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Advances in Engineering Software

Pub Date : 2025-12-01 Epub Date: 2025-10-14 DOI: 10.1016/j.advengsoft.2025.104043

Gerhard Venter, Melody Neaves

Digital Image Correlation (DIC) is a powerful non-contact optical technique used to measure displacement and strain fields. While commercial tools exist, their high cost and lack of flexibility can hinder innovation and accessibility. This paper introduces SUN-DIC, a Python-based open-source DIC tool designed for extensibility, clarity, and ease of use. We outline the theoretical foundations and describe the software architecture. SUN-DIC’s utility is demonstrated through selected examples and the code is successfully benchmarked against the DIC Challenge 2.0 for 2D analyses.

数字图像相关（DIC）是一种强大的非接触式光学技术，用于测量位移和应变场。虽然存在商业工具，但它们的高成本和缺乏灵活性可能阻碍创新和可及性。本文介绍SUN-DIC，这是一个基于python的开源DIC工具，具有可扩展性、清晰度和易用性。我们概述了理论基础并描述了软件体系结构。通过选定的示例演示了SUN-DIC的实用程序，并成功地针对DIC Challenge 2.0进行了2D分析的基准测试。

引用次数: 0