Elasto-plastic damage modeling and characterization of 3D needle-punched Cf/SiCm composite materials

H Lim, H Choi, MJ Lee, GJ Yun - Ceramics International, 2020 - Elsevier
In this paper, we present a material constitutive model for three-dimensional (3D) needle-
punched carbon/silicon carbide (C f/SiC m) with a complex meso-scale structure and …

Theoretical analysis and experimental identification of contact pressure in Brazilian disc

J Yu, X Shang, G Wang - Rock Mechanics and Rock Engineering, 2022 - Springer
The contact pressure in the Brazilian disc test is investigated by theoretical analysis and
experiment. A new theoretical approach is presented to obtain a semi-analytical solution of …

Inverse estimations of dynamic stiffness of highway bridge embankment from earthquake records

MR Rahimi, GJ Yun, S Shang - Journal of Bridge Engineering, 2014 - ascelibrary.org
In this paper, the dynamic self-optimizing inverse method (Self-OPTIM) has been proposed
to inversely estimate model parameters by using structural responses under dynamic …

A new inverse method for the uncertainty quantification of spatially varying random material properties

GJ Yun, S Shang - International Journal for Uncertainty …, 2016 - dl.begellhouse.com
In this paper, a new inverse uncertainty quantification method was proposed to identify
statistical parameters associated with spatially varying material properties and to reconstruct …

The self-optimizing inverse methodology for material parameter identification and distributed damage detection

J Weaver - 2015 - rave.ohiolink.edu
Understanding and predicting the behavior of structures under specific operating conditions
is a fundamental task of structural engineers. Scientific principles are used to model the …

Parameter estimation of a rate-dependent damage constitutive model for damage-tolerant brittle composites by Self-OPTIM analyses

S Shang, GJ Yun, BR Kim… - International Journal of …, 2013 - journals.sagepub.com
This article demonstrates a novel parameter identification of a rate-dependent damage
constitutive model using self-optimizing inverse method. In the self-optimizing inverse …

[HTML][HTML] On the existence of a global minimum in inverse parameters identification by Self-Optimizing inverse analysis method

GJ Yun, S Shang - Computers & Mathematics with Applications, 2019 - Elsevier
In this paper, a mathematical proof of the existence of a global minimum of Self-Optim (Self-
Optimizing Inverse Analysis Method) cost functional is presented based upon weak-solution …

Reconstruction of Spatially Varying Random Material Properties by Self-Optimizing Inverse Method

JM Weaver, GJ Yun - … & Infrared Imaging, Hybrid Techniques and Inverse …, 2016 - Springer
In this paper, a new methodology for reconstructing spatially varying random material
properties is presented by combining stochastic finite element (SFE) models with Self …

[PDF][PDF] International Journal of Damage

J Zhang, X Zhang, J Yan, P Hu, G Zheng - Mechanics - docketalarm.com
This paper presents a probabilistic micromechanical framework for analyzing crack bridging
stressdisplacement in short steel hooked-end fiber-reinforced cementitious composites …

[PDF][PDF] Zentrum für Technomathematik

M Wolff, M Böhm, L Taleb - math.uni-bremen.de
This work deals with parameter identification for general linear elliptic problems of second
order. The parameter dependence within the equation can be non-linear. Problems of such …