20 Result(s)
within
**-**a Ding
Engineering
Characterization and Evaluation of Materials
Mechanical Engineering
-
Article
Viscoplastic flow due to penetration: a free boundary value problem
Under the action of a pressure gradient, a solid body B penetrates into another body. Body B is assumed to be of an incompressible, viscoplastic, Bingham material. As a first model, the problem may be treated one...
-
Article
Transition elements matching the near crack-tip strain field
New transition elements used with the collapsed triangular singular elements are constructed by using the improved isoparametric transformations. Without 1/r singular terms, the new transition elements' strain fi...
-
Article
Description of two-dimensional spallation in pure copper
A new ductile dynamic failure model, based on a porous element consisting of a single spherical void of radius a in a sphere of radius b subject to internal pressure Pg and external stress σr = − αP + (α − 1) Pg ...
-
Article
A model of plastic flow enhanced crack growth dynamics
-
Article
Optimization of the adhesive joint Iosipescu specimen for pure shear test
This paper reviews some of the difficulties encountered in achieving a uniform stress distribution within the adhesive layer of bonded Iosipescu shear test specimens. The asymptotic singular stress field at th...
-
Article
A penny-shaped crack in piezoelectrics: resolved
This paper reconsiders the problem of a penny-shaped crack in a piezoelectric medium under uniform mechanical as well as electric loadings applied at infinity (mode I). The analysis is based on the general sol...
-
Chapter and Conference Paper
Modeling of Com-Based Virtual FMS
Virtual flexible manufacturing system(Abbrev. FMS) is composed of NC machining equipment, material handling system and computer control system, which can effectively adjust manufacturing scheme according to va...
-
Article
Anti-plane problem of periodic interface cracks in a functionally graded coating-substrate structure
In this paper, the interface cracking between a functionally graded material (FGM) and an elastic substrate is analyzed under antiplane shear loads. Two crack configurations are considered, namely a FGM bonded...
-
Article
Mode-I crack problem for functionally graded layered structures
This paper deals with two bonded functionally graded finite strips with two collinear cracks. Different layers may have different nonhomogeneity properties in the structure. A bi-parameter exponential function...
-
Article
A simplified hardening cohesive zone model for bondline thickness dependence on adhesive joints
In this paper, a tri-material adhesive system with nonlinear cohesive springs embedded between two elasto-plastic adhesive layers is proposed to predict the adhesive thickness effects on the fracture energy of...
-
Chapter and Conference Paper
A Semi-annular Cylindrically Converging Shock Tube for Richtmyer-Meshkov Instability Studies
A semi-annular cylindrically converging shock tube is designed and constructed for performing experiments of the converging RM instability. The shock fronts with a perfectly cylindrical shape in the convergenc...
-
Article
Recent advances on size effect in metal fatigue under defects: a review
Structural components with different scales normally show different fatigue behaviors, which are virtually dominated by defects originated from multiple sources, including manufacturing processes. This paper r...
-
Article
The strain gradient viscoelasticity full field solution of mode-III crack problem
The size and viscosity effects are noticeable at the micro-/nano scale. In the present work, the strain gradient viscoelastic solution of the mode-III crack in an infinite quasi-brittle advanced material is pr...
-
Article
The adaptive coupling of dual-horizon peridynamic element and finite element for the progressive failure of materials
The peridynamic correspondence model (PDCM) provides the stress–strain relation that can introduce many classical constitutive models, however, the high computational consumption and zero-energy mode of PDCM c...
-
Article
Investigating the estimation of optimum moisture content through support vector regression in individual and hybrid approaches
This study explores the application of machine learning (ML) for predicting the optimum moisture content (OMC) of soil–stabilizer mixtures. The study utilizes support vector regression (SVR), a well-establishe...
-
Article
Prediction of compressive strength of concrete for high-performance concrete using two combined models, SVR-AVOA and SVR-SSA
High-performance concrete (HPC) is a crucial material for constructing critical structures, such as dams, bridges, and high-rise buildings, as its exceptional compressive strength (CS) is vital for ensuring st...
-
Article
Hybrid regression models: predicting of the capillary water absorption properties of construction stones
Large-scale and time-consuming procedures and testing are necessary to examine the rock's capillary water absorption ( \({\rm CWA}\) ...
-
Article
Employing adaptive neural fuzzy inference system model via meta-heuristic algorithms for predicting undrained shear strength
The undrained shear strength (USS) of soil is known as one of the most important features in structural engineering tasks, such as foundation design, rock fill and earth dam design, highway and railway design,...
-
Article
Contact problem of two punches in an elastic coating attached to a porous material
This paper investigates the contact problem of an elastic layer that is perfectly attached to a porous half-space by two rigid flat punches with collinear symmetry. Using integral transformation, the problem i...
-
Article
Analysis of a cracked harmonic substrate under a rigid punch
The study of the mechanical action between a punch and a cracked substrate has some theoretical guidance for the material protection. So the coupling problem of a cracked semi-infinite harmonic substrate under...
