scholarly journals Equivalent material model of corroded prestressing steel strand

2019 ◽  
Vol 8 (2) ◽  
pp. 2450-2460 ◽  
Author(s):  
Chi-Ho Jeon ◽  
Jae-Bin Lee ◽  
Sokanya Lon ◽  
Chang-Su Shim
Keyword(s):  
Material Model ◽  
Equivalent Material ◽  
Prestressing Steel ◽  
Steel Strand

Assessment of 3D Linear Elastic Masonry-Like Vaulted Structures

2019 ◽  
Vol 817 ◽  
pp. 50-56
Author(s):  
Deborah Briccola ◽  
Matteo Bruggi ◽  
Alberto Taliercio
Keyword(s):  
Material Model ◽  
Equivalent Material ◽  
Technical Literature ◽  
Linear Elastic ◽  
Novel Approach ◽  
Out Of Plane ◽  
Minimization Procedure ◽  
Live Loads ◽  
Historical Masonry ◽  
No Tension Material

A novel approach is adopted to assess the static behavior of vaulted structures, such as cantilevered masonry stairs, assuming a linear elastic no-tension material model. Masonry is substituted by an equivalent orthotropic material whose elastic properties vary locally and with a negligible stiffness where tensile strain occurs. In order to recover a tension-free state of stress, an energy-based minimization procedure is carried out to establish the distribution and the orientation of the equivalent material for a given compatible load. The capability of the approach in defining purely compressive stress solutions in masonry walls under dead load and both in-plane and out-of-plane live loads has already been assessed. A meaningful application to a cantilevered masonry stair is here presented; the results are in good agreement with those available in the technical literature on historical masonry constructions.

Analysis of Buffering Properties of Honeycomb Material

2012 ◽  
Vol 482-484 ◽  
pp. 1146-1149
Author(s):  
Ming Bo Yang ◽  
Jin Bao Chen ◽  
Fei Deng ◽  
Meng Chen
Keyword(s):  
Theoretical Analysis ◽  
Material Properties ◽  
Orthotropic Material ◽  
Soil Mechanics ◽  
Material Model ◽  
Lunar Soil ◽  
Equivalent Material ◽  
User Material Model ◽  
Honeycomb Material ◽  
Equivalent Material Properties

The buffering properties of honeycomb material are analyzed in the presented work. Theoretical analysis based on energy method is first presented, the buffering process of honeycomb material can be divided into three phases, honeycomb material can be equivalent to orthotropic material and the equivalent material properties are given. Being good at soil mechanics, Abaqus can simulate lunar soil very well. Using a constitutive model for honeycomb material, which is a built-in user material model, the presented work developed a honeycomb material simulation model and verified with a practical example. Now we can analysis the entire landing buffer process in Abaqus, which is a complement to existing analysis processes.

A Hybrid Approach for Quantifying the Winding Process and Material Effects on Sheet Coil Deformation

2004 ◽  
Vol 126 (3) ◽  
pp. 303-313 ◽  
Author(s):  
Shunping Li ◽  
Jian Cao
Keyword(s):  
Hybrid Approach ◽  
Material Model ◽  
Element Model ◽  
Equivalent Material ◽  
Analysis Model ◽  
Engineering Design Process ◽  
Radial Stiffness ◽  
Gravitational Loading ◽  
Laminate Sheet ◽  
Winding Tension

Excessive coil deformation can complicate normal handling of a wound or rolled coil, cause difficulties in mass production, and introduce undesirable variations in the subsequent manufacturing processes. Four critical factors for coil deformation have been identified, i.e., radial stiffness of the coil material, winding tension, stiffness of the core which supports the coil, and lubrication. In this paper, we advance the understanding of coil deformation by developing an equivalent material model based on the internal stress distribution obtained from a two-dimensional winding-analysis model. The proposed material model is then implemented in a multi-layer finite element model to study the coil deformation under gravitational loading. This proposed framework can quantify the contribution of each factor in the coil deformation and thereby provide more scientific base in the engineering design process. The approach is used to analyze the deformation of laminate sheet coils.

scholarly journals A New Method of Equivalent Material Model Deformation Observation

2011 ◽  
Vol 3 (5) ◽  
pp. 40-46 ◽  
Author(s):  
Lailiang CAI ◽  
Kan WU ◽  
Qisheng YU ◽  
Jinpeng FENG
Keyword(s):  
Material Model ◽  
New Method ◽  
Equivalent Material
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