Phase-field modeling of brittle and ductile fracture in shells with isogeometric NURBS-based solid-shell elements

M Ambati, L De Lorenzis - Computer Methods in Applied Mechanics and …, 2016 - Elsevier
In this paper, we investigate fracture in shells with a phase-field modeling approach. The
shell model is based on solid-shell kinematics with small rotations and displacements and is …

Phase-field model of brittle fracture in Reissner–Mindlin plates and shells

G Kikis, M Ambati, L De Lorenzis, S Klinkel - Computer Methods in Applied …, 2021 - Elsevier
In this paper, a phase-field model is presented for the description of brittle fracture in a
Reissner–Mindlin plate and shell formulation. The shell kinematics as well as the phase …

Impact resistance of concrete targets pre-damaged by explosively formed projectile (EFP) against rigid projectile

F Hu, H Wu, Q Fang, JC Liu - International Journal of Impact Engineering, 2018 - Elsevier
The two-stage munitions is newly utilized to attack the hard and deeply buried protective
structures, while the related work on the impact performance of two-stage munitions into …

A numerical method for dynamic fracture using the extended finite element method with non-nodal enrichment parameters

I Asareh, YC Yoon, JH Song - International Journal of Impact Engineering, 2018 - Elsevier
A modified extended finite element method (XFEM) for dynamic fracture is presented with a
new methodology to construct the XFEM basis for discontinuities. In this method, the …

Isogeometric HSDT approach for dynamic stability analysis of general anisotropic composite plates

E Shafei, S Faroughi, T Rabczuk - Composite Structures, 2019 - Elsevier
Due to wide application of anisotropic composite plates in modern engineering structures
and they were studied rare in literature, the main goal of this work is to study dynamic …

一种新型裂尖加强函数的显式动态扩展有限元法

刘学聪, 章青, 夏晓舟 - 工程力学, 2017 - engineeringmechanics.cn
基于扩展有限元方法提出了一种新的裂尖加强函数, 与传统三角函数基表征的加强函数相比,
该裂尖加强函数通过组合传统的函数基, 继承了传统附加函数的特性, 同时使得结点的奇异附加 …

Thermodynamic behavior of NiTi shape memory alloy against low-velocity impact: experiment and simulation

J Wang, X Ren, Y Xu, W Zhang, J Zhu, B Li - International Journal of Impact …, 2020 - Elsevier
The study of thermodynamic behavior of shape memory alloy (SMA) against impact is of
great importance for the use of SMA as damping devices. This paper investigates the …

A linear complete extended finite element method for dynamic fracture simulation with non-nodal enrichments

I Asareh, TY Kim, JH Song - Finite Elements in Analysis and Design, 2018 - Elsevier
A linear complete extended finite element method for arbitrary dynamic crack is presented.
In this method, strong and weak discontinuities are assigned to a set of non-nodal points on …

裂纹问题的一致性高阶无网格法Consistent high order meshfree method for crack problems

高欣, 段庆林, 李书卉, 陈飙松 - 计算力学学报, 2018 - pubs.cstam.org.cn
一致性高阶无网格法能高效精确地求解连续体问题, 尤其是能得到高精度的应力场.
本文将该方法拓展到应力解析精度至关重要的裂纹问题(即非连续体问题) 的数值分析 …

An extrinsic cohesive shell model for dynamic fracture analyses

D Wang, W Xu, S Chen, M Zang - Theoretical and Applied Fracture …, 2018 - Elsevier
Thin-wall structures which are usually modeled by using shell finite elements have found
widespread applications in various industries. It is of vital importance to evaluate the …