Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Deng, Shiguang"'
Autor:
Deng, Shiguang
Direct numerical simulation of hierarchical materials via homogenization-based concurrent multiscale models poses critical challenges for 3D large scale engineering applications, as the computation of highly nonlinear and path-dependent material cons
Externí odkaz:
http://arxiv.org/abs/2212.01880
Data-Driven Calibration of Multi-Fidelity Multiscale Fracture Models via Latent Map Gaussian Process
Fracture modeling of metallic alloys with microscopic pores relies on multiscale damage simulations which typically ignore the manufacturing-induced spatial variabilities in porosity. This simplification is made because of the prohibitive computation
Externí odkaz:
http://arxiv.org/abs/2205.12157
Concurrent multiscale damage models are often used to quantify the impacts of manufacturing-induced micro porosity on the damage response of macroscopic metallic components. However, these models are challenged by major numerical issues including mes
Externí odkaz:
http://arxiv.org/abs/2205.12149
Autor:
Deng, Shiguang, Suresh, Krishnan
Engineering structures must often be designed to resist thermally induced stresses. Significant progress has been made on the design of such structures through thermo-elastic topology optimization. However, a computationally efficient framework to ha
Externí odkaz:
http://arxiv.org/abs/2203.15117
Autor:
Deng, Shiguang, Krishnan, Suresh
The objective of this paper is to introduce and demonstrate a robust methodology for solving multi-constrained 3D topology optimization problems. The proposed methodology is a combination of the topological level-set formulation, augmented Lagrangian
Externí odkaz:
http://arxiv.org/abs/2203.15115
Autor:
Deng, Shiguang, Suresh, Krishnan
The objective of this paper is to introduce and demonstrate a robust method for multi-constrained topology optimization. The method is derived by combining the topological sensitivity with the classic augmented Lagrangian formulation. The primary adv
Externí odkaz:
http://arxiv.org/abs/2203.15111
Autor:
Deng, Shiguang, Krishnan, Suresh
The focus of this paper is on topology optimization of continuum structures subject to thermally induced buckling. Popular strategies for solving such problems include Solid Isotropic Material with Penalization (SIMP) and Rational Approximation of Ma
Externí odkaz:
http://arxiv.org/abs/2203.14942
Significant progress has been made for assessing the influence of porosity on the performance metrics for cast components through various modeling techniques. However, a computationally efficient framework to account for porosity with various shapes
Externí odkaz:
http://arxiv.org/abs/2108.03744
Aluminum alloys are increasingly utilized as lightweight materials in the automobile industry due to their superior capability in withstanding high mechanical loads. A significant challenge impeding the large-scale use of these alloys in high-perform
Externí odkaz:
http://arxiv.org/abs/2108.03742
Manufactured metallic components often contain non-uniformly distributed pores of complex morphologies. Since such porosity defects have significant influence on material behaviors and affect the usage in high-performance applications, it is signific
Externí odkaz:
http://arxiv.org/abs/2108.03740